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Shuttle hurdle relay
Type of relay race

The shuttle hurdle relay (SHR) is a type of a relay race in track and field in which participants jump (sprint) over hurdles. The shuttle hurdle relay is contested at the Drake Relays, Desert Conference Relays, Kansas Relays, Mt. SAC Relays, Penn Relays, Texas Relays, Akron Relays, Alabama Relay, Appalachian Conference Relay, Florida Relays (Gainesville), Knoxville Relay, Long Beach Relay, Ohio Relays, Santa Barbara Relay, So Cal Relays (at College of the Desert), Tennessee Relays (formerly: Dogwood Relays, Sea Ray Relays), Towson Relays, and Tri-State Relays. The SHR was also included at the 2019 IAAF World Relays and 2021 competition. In 2024 it was included at the Croatian Relay Championships.

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Variations

High Hurdle Relay

The SHR is currently referred to as the 4 x 60 hurdles, 4 x 80 hurdles, 4 x 100 hurdles, and 4 x 110 hurdles. In the past the term shuttle hurdle relay was more commonly used.

This events allow four hurdlers to run on the same relay team and has been held both outdoor and indoor. In a shuttle hurdle relay, each of four hurdlers on a team runs the opposite direction from the preceding runner.

The shuttle hurdle relay typically consists of: (a) four hurdlers per relay team – each runs one leg, (b) same sex, (c) each hurdler runs the same hurdle spacing and hurdle heights, (d) two lanes – one up, and one back (e) the first leg starts at the automatic timing line, hence this allows the anchor leg to finish at the "finish line", (f) hurdlers must stay in their own lane, (g) hurdlers are not allowed to touch the hurdles with their hands, (h) depending on the age-group there may be an "exchange zone" (Masters Track and Field does not use an exchange zone), (i) No batons are used for this particular relay, and (j) For Masters Track and Field the youngest person on the relay team dictates the age-bracket (for that particular relay team).

USATF Competition Rules list description for the Open and Masters shuttle hurdle relay competition.5

Mile intermediate hurdle relay

In the past, a rarely run 4 x 440 yard shuttle hurdle relay was included at some competitions. A height of 36" tall hurdles was used.

On 29 April 1972, Olivett College (John McGlashen, Charles VanderRoest, Bruce Ritter, and Ron Hobday) beat Cedarville in 3:58.4 for the mile intermediate hurdle at the Tri-State Relays, held at Defiance College.67 In April 1973, Edinboro State at the Akron Invitational Relays in Akron, Ohio broke the world best for this event.8 On 6 April 1974, Occidental College broke the 1973 record in the 4 x 440 yard shuttle hurdle relay in a meet against Whittier College and Pomona-Pitzer.9 On 17 April 1974, Stanford broke Occidental College's record while defeating Skyline College.10 March 15, 1975 Occidental College took the record back.11 On 24 April 1976, Mt Sac College broke the record at the Mt. SAC Relays,12 and on 23 April 1977, Pasadena broke the record at the Mt. SAC Relays.13 By 1984, Long Beach City College (Jose Davis, Tyrone McCullough, Nelson Rodríguez, and Oswaldo Zea) held the community college 1600 meter intermediate hurdle relay in 3:31.06.14

History

The first recorded instance of a shuttle hurdle relay was probably in January 1901, when a "Hurdle relay race" was included at a meet in Portland, Oregon. No hurdle details were provided.15 In December 1906, a "hurdle relay race proved a highly exciting contest" at a meet in Vancouver, Canada. No hurdle details were provided.16 In January 1907 and November 1907, the YMCA in Kansas held an indoor "hurdle relay."1718

In 1910–1911, the Official Handbook of the Girls' Branch of the Public Schools Athletic League states for the girls hurdle relay "the maximum distance for each runner not to exceed fifty yards; the maximum height for hurdles to be two feet".19 On 11 June 1910, a girls hurdle relay was held at the Armory in Rochester, New York.20 A November 1912 announcement for girls in New York announced that youth activities would include a "hurdle relay."21 In 1912, the American Physical Review magazine reports a boys SHR at a Dual Athletic Meet between Cambridge High and Latin School vs Rindge Technical School.22 In 1916, an indoor meet in Hawaii held a "300-yard hurdle relay race", which was won by the N.A.C. Club for the youth clubs, and Kalihi for the junior clubs.23

In May 1917, at the first annual girls' interscholastic meet on Tech Field in Pennsylvania, a "Hurdle relay" was competed, with Allegheny first, Peabody second, and Latimer third. No hurdle details were provided.24

In 1926, the SHR was added to the Penn Relays events at the suggestion of David Burghley, the British champion of the 400 meter hurdles at the 1928 Olympic Games.25

In April 1938, Oklahoma State set a (then) Kansas Relays meet record in 1:01.6.26 In March 1953, in California, the SHR was included at the Orange Show Relay and the four-way spike meet (four colleges).2728

In 1973, a West German team placed 3rd at the Mt Sac Relays in 59.1.29

Masters Track and Field have included the SHR as a standard event at the USATF Masters Outdoor Championships.30 The competition is eligible for Masters American Records and medals. The oldest athlete that has competed in a SHR is George Roudebush (age 93) when he competed in a 2018 M80 plus SHR race.31

The oldest female athletes that have competed in a SHR are Tami Graf (age 85) at the 2021 and Flo Meiler (age 88) at the 2022 USATF Masters Outdoor Championships.3233

The SMR was also included at former relays such as the California Relays, Compton Relays, West Coast Relays,34 the 1996 Alabama Relays,35 and the Golden Valley Conference Relays 36 Additional relays include the 1993 European Relays in Portsmouth, England,37 and July 5, 1981, TAC Relay Championship in Greenvale, New York.38

Including a SHR outside of the US and the United Kingdom has been infrequent. In August 2007, the BAUHAUS-galan (formerly GN Galan) meet in Stockholm, Sweden included the 480 Yard Shuttle Hurdle Relay. The United States won with a time of 53.36 seconds, Sweden in second with a time of 57.03, Finland in third with a time of 57.26. The event was well received.39

The 1990 Penn Relay included a 880 shuttle hurdle relay.40

The British Empire versus the USA

In 1920-1928, after the 1920, 1924, and 1928 Summer Olympics, the majority of the American track and field team crossed the British Channel to compete in a highly-publicized meet known as "The British Empire versus the U.S.A.", held at Stamford Bridge, London. This meet included the shuttle hurdle relay. In 1924 and 1928, the US won in 61.6 and 62 seconds for the 480 yards hurdle relay, respectively.414243

Oxford versus Cambridge

The Oxford–Cambridge rivalry: Oxford versus Cambridge Inter-University competitions included 480 yards hurdles relay (1920 to 1930) and 880 yards low hurdles relay (1926 to 1930).44

1920: Inter-varsity: Cambridge versus Oxford: Dec 1920: Oxford beat Cambridge in the SHR. Winning time of 67 2/5 seconds.45 December 1921 Oxford beat Cambridge in 69 4/5 seconds.46 December 1922 Oxford beat Cambridge in 67 2/5 seconds.47

All-time top 20

Men – 4 × 110m

Updated November 2020

RankTimeTeamNationalityDatePlaceRef
152.94Jason RichardsonAleec HarrisAries MerrittDavid Oliver United States25 April 2015Des Moines48
253.08Andrew RileyRyan BraithwaiteHansle ParchmentGreggmar Swift Jamaica Barbados Jamaica Barbados25 April 2015Des Moines
353.36USARon BramlettAnwar MooreDavid PayneAries Merritt United States7 August 2007Stockholm
453.44yUSA RedDavid OliverJoel BrownAubrey HerringAries Merritt United States25 April 2008Philadelphia
553.62ACC All StarsAllen JohnsonSteve BrownTerry ReeseDuane Ross United States Trinidad and Tobago United States United States16 May 1998Clemson
653.62Ronnie AshRyan WilsonSpencer AdamsJeff Porter United States25 April 2015Des Moines
753.65World ExpressEddie LovettSpencer AdamsJarret EatonMikel Thomas United States Virgin Islands United States United States Trinidad and Tobago4 April 2015Gainesville
853.77Jeff PorterDominic BergerAries MerrittTy Akins United States United States United States Nigeria26 April 2014Des Moines
953.83JamaicaAndrew RileyDeuce CarterHansle ParchmentStefan Fennell Jamaica26 April 2014Des Moines
1053.88Karamu FlyersJack PierceTony DeesEric ReidKeith Talley United States1 April 1989Tempe
1153.93Karamu FlyersJack PierceEric ReidTony DeesKeith Talley United States7 May 1989Modesto
1254.07ySouth CarolinaCorey TaylorFred TownsendCharles RyanKenneth Ferguson United States25 April 2003Philadelphia
1354.10Elite 2008David OliverAubrey HerringJoel BrownJohn McDowell United States5 April 2008Gainesville
1454.20USC AlumniSam TurnerPhilip JohnsonMilan StewartTonie Campbell United States25 April 1982Walnut
1554.23Star AthleticsRyan BraithwaiteSelim NurudeenRoudy MonroseKemar Hyman Barbados Nigeria Haiti Cayman Islands6 April 2013Gainesville
1654.30Star Athletics7 April 2012Gainesville
1754.35yEast Coast All-StarsCourtney HawkinsGlenn TerryAllen JohnsonJack Pierce United States28 April 1995Philadelphia
1854.36Brooks BeastDavid Oliver? ThomasRyan WilsonJeff Porter United States United States United States6 April 2013Gainesville
1954.40TennesseeJerome WilsonAnthony HancockReggie TownsWillie Gault United States22 May 1981Knoxville.49
2054.41Philadelphia PioneersWayne MasonDan OliverKerry BethelCharles Foster United States22 May 1981Knoxville.50

y = adjusted from the slightly shorter distance of 4 x 120 yards by adding 0.13 seconds

Women – 4 × 100m

RankTimeTeamNationalityDatePlaceRef
150.50USA BlueBrianna RollinsDawn Harper-NelsonQueen HarrisonKristi Castlin United States24 April 2015Des Moines.51
250.50All Stars WhiteTiffany PorterJasmin StowersJacquelyn CowardSharika Nelvis Great Britain United States United States United States24 April 2015Des Moines
350.66BJPTCKristi CastlinBrianna RollinsQueen HarrisonTiffany Porter United States United States United States Great Britain5 April 2014Gainesville
450.78BoogieFastNia AliKristi CastlinYvette LewisQueen Harrison United States United States Panama United States6 April 2013Gainesville52
550.93USA RedBrianna RollinsLolo JonesVashti ThomasQueen Harrison United States25 April 2014Des Moines
652.00RussiaMarina AzyabinaYelena SinyutinaEva SokolovaYelizaveta Chernyshova Russia5 June 1993Portsmouth.53
752.01JamaicaShermaine WilliamsAndrea BlissMonique MorganLaToya Greaves Jamaica25 April 2014Des Moines
852.07Star AthleticsKellie WellsTenaya JonesLaVonne IdletteJacquelyn Coward United States United States Dominican Republic United States5 April 2014Gainesville
952.29Great Britain / AustriaDanielle CarruthersBeate SchrottTiffany PorterIsabelle Pederson United States Austria Great Britain Norway6 April 2013Gainesville
1052.30UkraineOlena PolitikaOlena AlystrasenkoNadezhda BodrovaNatalya Kolovanova Ukraine5 June 1993Portsmouth.54
1152.32Drake RedJanay DeLoachTenaya JonesRaven ClayVashti Thomas United States United States United States Panama24 April 2015Des Moines
1252.38Star AthleticsDamu MitchellLoreal SmithTiki JamesKellie Wells United States7 April 2012Gainesville
1352.38Star AthleticsJacquelyn CowardKellie WellsTenaya JonesLaVonne Idlette United States United States United States Dominican Republic6 April 2013Gainesville
1452.50Texas A&MVashti ThomasGabby MayoDonique FlemingsNatasha Ruddock Panama United States United States Jamaica23 April 2010Philadelphia
1552.50Academy ArtJesseka RaymondBriana StewartDinesha BeanJulian Purvis United States27 April 2013Des Moines
1652.59BoogieFestQueen HarrisonKristi CastlinMichaylin GolladayBeate Schrott United States United States United States Austria7 April 2012Gainesville
1752.62Elite AthletesChristina ManningSharika NelvisRaven ClayCambrya Jones United States4 April 2015Gainesville
1852.77Louisiana State UniversityTenaya JonesAngel BoydJessica OhanajaNickiesha Wilson United States United States Nigeria Jamaica25 April 2008Philadelphia
1952.85IllinoisJenny KallurCamee WilliamsSusanna KallurPerdita Felicien Sweden United States Sweden Canada28 April 2001Des Moines
2052.87ClemsonBrianna RollinsBridgette OwensKendra HarrisonMonique Gracia United States7 April 2012Gainesville

Mixed – 4 × 110m

Updated November 2024

RankTimeTeamNationalityDatePlaceRef
154.27AK Sloboda, VaraždinRoko FarkašKlara KoščakJanko KišakJana Koščak Croatia4 May 2024Zagreb55
254.42Team BlueKristi CastlinSpencer AdamsNia AliEddie Lovett United States United States United States US Virgin Islands30 April 2016Des Moines56
354.77Team RedJasmin StowersHansle ParchmentJaqueline CowardAries Merritt United States30 April 2016Des Moines57
454.89Team GreenKendra HarrisonAleec HarrisBrianna RollinsOmar McLeod United States United States United States Jamaica30 April 2016Des Moines58
554.96Christina ClemonsFreddie CrittendenSharika NelvisDevon Allen United States11 May 2019Yokohama59
655.09Sharika NelvisFreddie CrittendenQueen HarrisonRyan Fontenot United States11 May 2019Yokohama60
755.47Amoi BrownAndrew RileyMegan TapperRonald Levy Jamaica11 May 2019Yokohama61
855.59Ayako KimuraShunya TakayamaMasumi AokiTaio Kanai Japan11 May 2019Yokohama62
956.13Ayako KimuraShunya TakayamaMasumi AokiTaio Kanai Japan11 May 2019Yokohama63
1056.40Brianna BeahanNicholas HoughCeleste MucciNick Andrews Australia11 May 2019Yokohama64
1156.53Monika ZapalskaErik BalnuweitAnne WeigoldGregor Traber Germany1 May 2021Chorzów65

66

See also

Abrahams, H.M.; Bruce-Kerr, J. (1931). Oxford versus Cambridge. A record of Inter-University Contests from 1827-1930. London: Faber and Faber Limited. p. 475 to 482.

Track and Field News and USATF websites include current shuttle hurdle relay American Records for the following:

Additional External Links:

References

  1. The Desert Sun, Mar 10, 1975.[1] Retrieved Oct 4, 2023 https://www.newspapers.com/image/747717141/?match=1

  2. lynbrooksports 1969.[2] Retrieved May 16, 2024 https://lynbrooksports.prepcaltrack.com/ATHLETICS/TRACK/1969/RESULTS/Ohio-St_Relays.pdf

  3. Desert Sun, Apr 17, 1981.[3] Retrieved Nov 6, 2023 https://www.newspapers.com/image/748075394/

  4. World Athletics, June 13, 2021 https://www.worldathletics.org/competitions/world-athletics-relays/world-athletics-relays-7144840?urlSlug=silesia21&competitionGroup=world-athletics-relays//

  5. USATF. [4] Retrieved Oct. 14, 2020 https://www.usatf.org/governance/rule-books//

  6. Battle Creek Enquirer, Michigan, April 30, 1972. [5] Retrieved Dec 17, 2020 https://www.newspapers.com/image/205333148/?terms=Tri-State%20Relay&match=1//

  7. Xenia Daily Gazette, Ohio May 1, 1972. [6] Retrieved Dec 17, 2020 https://www.newspapers.com/image/7639531/?terms=hurdle%20Cedarville%20College&match=1//

  8. San Bernardino County Sun, San Bernardino, California, April 7, 1974. [7] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/61234703/?terms=mile%2Bintermediate%2Bhurdle%2Brelay//

  9. Times Standard, Eureka, California, April 7, 1974. [8] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/47115387/?terms=Occidental%2BRelay%2BRecord//

  10. The Times, San Mateo, California, April 18, 1974 [9] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/39048377/?terms=mile%2Bintermediate%2Bhurdle%2Brelay//

  11. Sacramento Bee, Sacramento, California. [10] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/620570492/?terms=mile%2Bintermediate%2Bhurdle%2Brelay//

  12. Pomona Progress, April 25, 1976. [11] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/77456602/?terms=mile%2Bintermediate%2Bhurdle%2Brelay//

  13. Progress Bulletin, Pomona, California. [12] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/70251032/?terms=mile%2Bintermediate%2Bhurdle%2Brelay//

  14. Los Angeles Times, February 24, 1991 [13] Retrieved Oct. 17, 2020 https://www.newspapers.com/image/176840186/?terms=mile%2Bintermediate%2Bhurdle%2Brelay//

  15. The Sunday Oregonian, Jan 13, 1901.[14] Retrieved Nov 6, 2024 https://www.newspapers.com/image/1084806398/?match=1&terms=%22Hurdle%20Relay%22

  16. The Province, Dec 13, 1906.[15] Retrieved Nov 6, 2024 https://www.newspapers.com/image/497951921/?match=1&terms=%22Hurdle%20Relay%22

  17. Topeka State Journal, Jan 3, 1907.[16] Retrieved Feb 1, 2024 https://www.newspapers.com/image/323083265/?terms=%22hurdle%20relay%22&match=1//

  18. Topeka State Journal, Nov 7, 1907.[17] Retrieved Feb 1, 2024 https://www.newspapers.com/image/323193468/?terms=%22hurdle%20relay%22&match=1//

  19. Spalding's Athletic Library, Girl Athletics 1910–1911. [18] Retrieved Nov. 22, 2020 https://books.googleusercontent.com/books/content?req=AKW5Qae03LmX7ORDYfBMxCNIosOWRGChdmKCV9lCxeuBMabhg5ZK5AwY0FN-8o_6FNyG_-4_C7qazkWoLBWQXi8G9uDsiQbA-09XLdc15GULbJ0D7SJU9tjOcfcwn05y-jVyMBwcCY9W_kzLRY359xJW9Uxuni6QzbbARI7IlDU7tk66AH5D7bTNTInQ5gHCuMzBFlg5uZmhq45o4razMe1A_JdqoWEozWvwnOWMFOmhhfkZqMHWwO2WPlyfgRyRJcrdg6F6TaECU_MTSAlPmqGa_-ngkAd8x0-N5PFFw_O_cvGtvgybfqg//

  20. Democrat and Chronicle, Rochester, New York, June 12, 1910. [19] Retrieved Nov. 22, 2020 https://www.newspapers.com/image/136436326/?terms=hurdle%20relay&match=1//

  21. The Berlin New Record, Nov 2, 1912.[20] Retrieved Feb 1, 2024 https://www.newspapers.com/image/990508964/?terms=%22hurdle%20relay%22&match=1//

  22. American Physical Review magazine, 1912, pg 653.[21] Retrieved Aug 6, 2023 https://books.google.com/books?id=941IAAAAYAAJ&dq=Masters+Shuttle+Hurdle+Relay&pg=PA653

  23. Honolulu Star-Bulletin, May 6, 1916.[22] Retrieved Feb 1, 2024 https://www.newspapers.com/image/876840243/?terms=%22hurdle%20relay%22&match=1//

  24. "Latimer High Girls Land Victory in School Meet; Event a Grand Success". The Gazette Times. Pittsburgh. May 27, 1917. Retrieved Nov 6, 2024 – via Newspapers.com. https://www.newspapers.com/image/85830036/?match=1&terms=%22Shuttle%20Hurdle%22

  25. Sports Illustrated [23] Retrieved Oct. 14, 2020 https://vault.si.com/vault/1979/04/30/carnival-time-there-are-no-calliopes-and-the-tents-that-gave-the-penn-relay-carnival-its-full-name-are-gone-but-multitudes-still-will-be-flocking-to-philly-this-week

  26. Detroit Free Press, Apr 24, 1938. [24] Retrieved Aug 25, 2021 https://www.newspapers.com/image/97522642//

  27. San Bernardino County Sun, Mar 26, 1953.[25] Retrieved Nov 23, 2022 https://www.newspapers.com/image/49425509/?terms=College%20Shuttle%20Hurdle&match=1//

  28. Pomona Progress Bulletin, Mar 23, 1953.[26] Retrieved Nov 23, 2022 https://www.newspapers.com/image/623562181/?terms=Orange%20Show%20Relay&match=1//

  29. San Francisco Examiner, Apr 29, 1973. [27] Retrieved Jun 1, 2022 https://www.newspapers.com/image/460227569/?terms=Long%20Beach%20Relay%20Shuttle%20Hurdle&match=1//

  30. Archive: masterstrack.com. [28] Retrieved Oct. 26, 2020 http://masterstrack.com/shuttle-hurdles-become-an-official-event-at-masters-nationals//

  31. Track & Field Records. [29] Retrieved Oct. 14, 2020 http://masterstrackandfield.org///

  32. Finish Timing Meet Results, July 2021. [30] Retrieved Sept 16, 2021 https://www.finishtimingresults.com/2021/07-22/results.pdf

  33. USATF Championship, 2022. [31] Retrieved Nov 23, 2022 https://www.finishtimingresults.com/2022/USATF-Outdoors/2022-masters-outdoor.pdf

  34. LA84. Track and Field Meet Results c1964. [32] Retrieved Oct. 26, 2020 https://la84foundation.on.worldcat.org/search?databaseList=&queryString=Track+and+field+meet+results#/oclc/38451670//

  35. Track Newsletter March 27, 1996 [33] Retrieved Nov 29, 2020 https://trackandfieldnews.com/etrack///

  36. Oak Leaf newspaper, Mar 18, 1965. [34] Retrieved Dec 27, 2020 https://cdnc.ucr.edu/?a=d&d=OL19650318.2.26&srpos=6&e=------196-en--20--1--txt-txIN-mile+hurdle+relay-------1//

  37. Track Newsletter June 17, 1993. [35] Retrieved November 4, 2020 https://trackandfieldnews.com/etrack///

  38. Track Newsletter, July 16, 1981. [36] Retrieved Dec 31, 2020 https://trackandfieldnews.com/etrack///

  39. Woodhurdles website. [37] Retrieved Dec 30, 2020 http://www.woodhurdles.com/ShuttleHurdleRelay/1.htm//

  40. Boston Globe, Apr 29, 1990.[38] Retrieved Nov 23, 2022 https://www.newspapers.com/image/439474659/?terms=Alabama%20Relay%20Shuttle%20Hurdle&match=1//

  41. The Guardian, England, July 21, 1924. [39] Retrieved Nov. 17, 2020 https://www.newspapers.com/image/258945094/?terms=480%2Byard%2Bhurdle%2Brelay//

  42. LA84: The Greatest Gathering of Track and Field Olympians. By John Lucas [40] Retrieved Oct. 14, 2020 https://digital.la84.org/digital/collection/p17103coll10/id/3320/rec/2//

  43. The Observer, London newspaper Aug 12, 1928. [41] Retrieved Oct. 14, 2020 https://www.newspapers.com/image/257765594/?terms=British%2BEmpire//

  44. Abrahams, H.M.; Bruce-Kerr, J. (1931). Oxford versus Cambridge. A record of Inter-University Contests from 1827-1930. London: Faber and Faber Limited. p. 475 to 482.

  45. The Guardian, London newspaper Dec 4, 1920. [42] Retrieved Oct. 14, 2020 https://www.newspapers.com/image/258189016/?terms=Cambridge%2Boxford//

  46. The Guardian, England, Dec. 3, 1921 [43] Retrieved Nov. 17, 2020 https://www.newspapers.com/image/258871836/?terms=Oxford&match=1//

  47. The Guardian, England, Dec. 2, 1922 [44] Retrieved Nov. 17, 2020 https://www.newspapers.com/image/259037980//

  48. Track and Field News. [45] Retrieved November 6, 2020 https://trackandfieldnews.com/records/mens-world-records///

  49. Track Newsletter, May 29, 1981. [46] Retrieved November 13, 2020 https://trackandfieldnews.com/etrack///

  50. Track Newsletter, May 29, 1981. [47] Retrieved November 13, 2020 https://trackandfieldnews.com/etrack///

  51. Track and Field News. [48] Retrieved November 4, 2020 https://trackandfieldnews.com/records/womens-world-records///

  52. Jon Mulkeen (7 April 2013). "Freeman's breakthrough and Hoffa's world lead highlight Florida Relays". IAAF. Retrieved 13 August 2024. http://www.iaaf.org/news/report/freemans-breakthrough-and-hoffas-world-lead-h

  53. Track Newsletter June 17, 1993. [49] Retrieved November 4, 2020 https://trackandfieldnews.com/etrack///

  54. Track Newsletter June 17, 1993. [50] Retrieved November 4, 2020 https://trackandfieldnews.com/etrack///

  55. "Atletičari AK Slobode postavili nove rekorde na Prvenstvu Hrvatske u štafetama". varazdinske-vijesti.hr/ (in Croatian). 6 May 2024. Retrieved 17 November 2024. https://www.varazdinske-vijesti.hr/sport/atleticari-ak-slobode-postavili-nove-rekorde-na-prvenstvu-hrvatske-u-stafetama-81596

  56. "2016 Drake Relays Results" (PDF). godrakebulldogs.com. 30 April 2016. Retrieved 20 May 2021. https://static.godrakebulldogs.com/custompages/Statistics/Relays/2016/2016DrakeRelaysFinal.pdf

  57. "2016 Drake Relays Results" (PDF). godrakebulldogs.com. 30 April 2016. Retrieved 21 May 2021. https://static.godrakebulldogs.com/custompages/Statistics/Relays/2016/2016DrakeRelaysFinal.pdf

  58. "2016 Drake Relays Results" (PDF). godrakebulldogs.com. 30 April 2016. Retrieved 21 May 2021. https://static.godrakebulldogs.com/custompages/Statistics/Relays/2016/2016DrakeRelaysFinal.pdf

  59. "Mixed 4×110m Shuttle Hurdle Relay Final Results" (PDF). World Athletics. 11 May 2019. Retrieved 21 May 2021. https://media.aws.iaaf.org/competitiondocuments/pdf/6359/AT-SHUTHUR-X-f----.RS6.pdf?v=468349970

  60. "Mixed 4×110m Shuttle Hurdle Relay Heats Results" (PDF). World Athletics. 11 May 2019. Retrieved 21 May 2021. https://media.aws.iaaf.org/competitiondocuments/pdf/6359/AT-SHUTHUR-X-h----.RS6.pdf?v=941026455

  61. "Mixed 4×110m Shuttle Hurdle Relay Heats Results" (PDF). World Athletics. 11 May 2019. Retrieved 21 May 2021. https://media.aws.iaaf.org/competitiondocuments/pdf/6359/AT-SHUTHUR-X-h----.RS6.pdf?v=941026455

  62. "Mixed 4×110m Shuttle Hurdle Relay Final Results" (PDF). World Athletics. 11 May 2019. Retrieved 21 May 2021. https://media.aws.iaaf.org/competitiondocuments/pdf/6359/AT-SHUTHUR-X-f----.RS6.pdf?v=468349970

  63. "Mixed 4×110m Shuttle Hurdle Relay Heats Results" (PDF). World Athletics. 11 May 2019. Retrieved 21 May 2021. https://media.aws.iaaf.org/competitiondocuments/pdf/6359/AT-SHUTHUR-X-h----.RS6.pdf?v=941026455

  64. "Mixed 4×110m Shuttle Hurdle Relay Heats Results" (PDF). World Athletics. 11 May 2019. Retrieved 21 May 2021. https://media.aws.iaaf.org/competitiondocuments/pdf/6359/AT-SHUTHUR-X-h----.RS6.pdf?v=941026455

  65. "Mixed Shuttle Hurdle Relay Results". World Athletics. 1 May 2021. Retrieved 7 Aug 2021. https://www.worldathletics.org/competitions/world-athletics-relays/world-athletics-relays-7144840/results/mixed/shuttle-hurdles-relay/final/result

  66. "Formats and Editions". search.worldcat.org. Retrieved 2025-05-11. https://search.worldcat.org/formats-editions/996284?sd=asc&start_edition=1&referer=di&se=yr&qt=sort_yr_asc&editionsView=true&fq=