Ultramarathon (English Wikipedia)

"DUV Ultra Marathon Statistics". statistik.d-u-v.org. Retrieved 4 October 2023.
"DUV Ultra Marathon Statistics". statistik.d-u-v.org. Retrieved 8 February 2024.

dreamnews.jp (Global: low place; English: low place)

"日本一過酷な山岳レース「トランスジャパンアルプスレース（TJAR）」に密着したノンフィクション書籍『激走！日本アルプス大縦断』（NHKスペシャル取材班・著）が、集英社より4月26日（金）に発売！ | 株式会社集英社 | プレスリリース配信代行サービス『ドリームニュース』". Dreamnews.jp. Retrieved 23 November 2016.

endurancesport.co.nz (Global: low place; English: low place)

"Endurance Sport". Endurance Sport. Archived from the original on 10 July 2017. Retrieved 23 November 2016.

forbesindia.com (Global: 1,886^th place; English: 990^th place)

"Why La Ultra The High is the Cruelest Marathon". Forbes India. 18 February 2013.

g2gultra.com (Global: low place; English: low place)

"About the race". Grand to Grand Ultra.

garyrobbinsrun.com (Global: low place; English: low place)

"What Really Went Down in Whistler with the WAM Races". Gary Robbins. 26 October 2023. Retrieved 28 October 2023.

gomu.org (Global: low place; English: low place)

"GOMU - Global Organization of Multi-Day Ultramarathoners - World Championships". www.gomu.org. Retrieved 28 October 2023.
"GOMU - Global Organization of Multi-Day Ultramarathoners - Results & Records". www.gomu.org. Retrieved 23 October 2023.

hindu.com (Global: 261^st place; English: 171^st place)

"Big response for the Bangalore Marathon". The Hindu. 14 December 2007. Archived from the original on 17 December 2007. Retrieved 28 April 2013.

iaaf.org (Global: 588^th place; English: 546^th place)

"Ultra Running". Iaaf.org. Retrieved 23 November 2016.
"– 100 Kilometres Records". Iaaf.org. Retrieved 5 October 2013.

iau-ultramarathon.org (Global: low place; English: low place)

Bedkowski, Jacek. "Rankings & Records". IAU - International Association of Ultrarunners. Retrieved 22 October 2023.
Bedkowski, Jacek. "Rankings & Records". IAU - International Association of Ultrarunners. Retrieved 22 October 2023.
"IAU: Rationale for Combining IAU World Best Performances into one List" (PDF).
"IAU World Records Guidelines" (PDF). International Association of Ultrarunners. Retrieved 1 March 2022.
Bedkowski, Jacek. "IAU Records". IAU - International Association of Ultrarunners. Retrieved 23 January 2026.
IAU: Final WBP and WABP Records: 1000K, 1000M
"IAU Championships". Iau-ultramarathon.org. Archived from the original on 27 February 2017. Retrieved 23 November 2016.
"IAU World Cup 100 Kilometres" (PDF). Iau-ultramarathon.org. Retrieved 23 November 2016.

irunfar.com (Global: low place; English: low place)

iRunFar: Megan Eckert and Ivan Zaborsky Set Women’s and Men’s 6-Day Running World Records
iRunFar: Megan Eckert and Ivan Zaborsky Set Women’s and Men’s 6-Day Running World Records
iRunFar: Sibusiso Kubheka Breaks 6 Hours for 100 Kilometers in Adidas-Sponsored Time Trial Event "Chasing 100".
iRunFar: Anne Flower Sets 50-Mile World Record at the 2025 Tunnel Hill 50 Mile.
iRunFar: Caitriona Jennings Sets 100-Mile World Record at the 2025 Tunnel Hill 100 Mile.
Hicks, Meghan (12 May 2019). "2019 Transvulcania Ultramarathon Results". iRunFar. Retrieved 4 January 2023.
"2013 Ultra-Trail Mount Fuji Preview". Irunfar.com. 24 April 2013. Retrieved 23 November 2016.
Powell, Bryon (21 August 2017). "2017 UTMB Men's Preview". iRunFar. Retrieved 4 January 2023.

japantimes.co.jp (Global: 389^th place; English: 273^rd place)

info.japantimes.co.jp

"Ultra-Trail Mt. Fuji (UTMF) | The Japan Times Online". Info.japantimes.co.jp. Retrieved 23 November 2016.

jfk50mile.org (Global: low place; English: low place)

Mason, Andy (7 February 2016). "History". JFK 50 Mile. Retrieved 28 February 2024.

laufreport.de (Global: low place; English: low place)

"LaufReport Presse Info". laufreport.de.

marathondessables.com (Global: low place; English: low place)

"The race story | MARATHON DES SABLES - Site officiel". www.marathondessables.com. Archived from the original on 30 October 2023. Retrieved 23 October 2023.

montane.com (Global: low place; English: low place)

"The Yukon: Discover the world's coldest ultra". Montane. Retrieved 19 February 2023.

outsideonline.com (Global: 3,590^th place; English: 2,112^th place)

Chase, Adam (7 May 2021). "UTMB is Teaming up with IRONMAN. Will It Be the Ultra-Starbuckization?". Outside Online. Retrieved 28 October 2023.

rapidascent.com.au (Global: low place; English: low place)

"Salomon Trail Running Series – What Is Trail Running? (Salomon trail running series)". 21 March 2015. Archived from the original on 21 March 2015.

remezcla.com (Global: 4,626^th place; English: 3,055^th place)

Vilchis, Raul (10 March 2015). "Still, They Endure: The Paradox of Mexico's Legendary Tarahumara Runners". Remezcla. Retrieved 10 June 2019.

run2.au (Global: low place; English: low place)

"Ultra Marathons in Australia". run2.au. 1 July 2024. Retrieved 1 July 2024.

runnersworld.com (Global: 5,666^th place; English: 3,405^th place)

"More People Are Running Ultras Than Ever Before". Runner's World. 24 January 2020.

runyoung50.co.uk (Global: low place; English: low place)

Holmes, Katie (30 September 2022). "Eleanor Adams and the first Spartathlon". RunYoung50. Retrieved 23 October 2023.

scmp.com (Global: 362^nd place; English: 245^th place)

Agnew, Mark (20 August 2019). "UTMB 2019 schedule: when do the TDS, CCC and OCC start?". South China Morning Post. Retrieved 12 December 2023.

spartathlon.gr (Global: low place; English: low place)

Spartathlon (28 August 2015). "Ιστορικά Στοιχεία". Spartathlon Ultra Race (in Greek). Retrieved 23 October 2023.

srichinmoyraces.org (Global: low place; English: low place)

3100.srichinmoyraces.org

"The 27th Annual Sri Chinmoy Self-Transcendence 3100 Mile Race - 3100 Mile Race". 3100.srichinmoyraces.org. Retrieved 22 October 2023.
"srichinmoyraces.org / About the 3100 Mile Race". Retrieved 16 January 2013.

taraweraultra.co.nz (Global: low place; English: low place)

"Partners - Tarawera Ultramarathon | Rotorua, New Zealand". taraweraultra.co.nz.

theworld.org (Global: low place; English: low place)

Kanthor, Rebecca (9 June 2021). "Systemic problems in ultramarathon racing in China". The World. Retrieved 12 December 2023.

tjar.jp (Global: low place; English: low place)

"TJAR (Trans Japan Alps Race)". tjar.jp (in Japanese).

ultramarathon.se (Global: low place; English: low place)

ultramarathon.se: Wrong age categories leave six athletes without medals at GOMU 48-hour worlds.

ultrarunninghistory.com (Global: low place; English: low place)

"Spartathlon Part 1 (1982) - The Birth | Ultrarunning History". 19 September 2021. Retrieved 23 October 2023.
"First Finishers of Western States 100 Trail on Foot". 9 February 2022. Retrieved 23 October 2023.
"Classic Ultramarathon Beginnings". 17 February 2024. Retrieved 28 February 2024.
Crockett, Davy (22 January 2021). "Western States 100 - 1977". Ultrarunning History. Retrieved 23 January 2022.
Crockett, Davy (6 September 2019). "The Mount Baker Ultramarathon (1911-1913)". Ultrarunning History. Retrieved 23 January 2022.
Crockett, Davy (12 August 2019). "The 1928 Bunion Derby". Ultrarunning History. Retrieved 23 January 2022.
Crockett, Davy (19 August 2020). "The American Ultrarunning Hall of Fame". Ultrarunning History. Retrieved 23 January 2022.

usatf.org (Global: 4,986^th place; English: 2,994^th place)

"USA Track & Field | Records". usatf.org.

web.archive.org (Global: 1^st place; English: 1^st place)

"The race story | MARATHON DES SABLES - Site officiel". www.marathondessables.com. Archived from the original on 30 October 2023. Retrieved 23 October 2023.
"Vierdaagse – Distance & Rewards". 4daagse.nl. Archived from the original on 7 November 2016. Retrieved 23 November 2016.
"IAU Championships". Iau-ultramarathon.org. Archived from the original on 27 February 2017. Retrieved 23 November 2016.
"Comrades Marathon History". 4 June 2014. Archived from the original on 4 June 2014.
"Big response for the Bangalore Marathon". The Hindu. 14 December 2007. Archived from the original on 17 December 2007. Retrieved 28 April 2013.
"2016 – 2017 Japan Ultramarathon Calendar". Marathons.ahotu.com. Archived from the original on 24 November 2016. Retrieved 23 November 2016.
"Endurance Sport". Endurance Sport. Archived from the original on 10 July 2017. Retrieved 23 November 2016.
"Salomon Trail Running Series – What Is Trail Running? (Salomon trail running series)". 21 March 2015. Archived from the original on 21 March 2015.
"AURA – Australian Ultra Runners Association". 12 October 2007. Archived from the original on 12 October 2007.
Butler, Shawn (26 March 2018). "Barkley Marathons Finish Stats". Posilicious. Archived from the original on 11 May 2020. Retrieved 9 October 2018.

worldathletics.org (Global: 795^th place; English: 696^th place)

"World Athletics". worldathletics.org. Retrieved 22 October 2023.

Ultramarathon (English Wikipedia)

4daagse.nl (Global: low place; English: low place)

4deserts.com (Global: low place; English: low place)

abc.es (Global: 252nd place; English: 1,041st place)

ahotu.com (Global: low place; English: low place)

marathons.ahotu.com

amazon.com (Global: 105th place; English: 79th place)

aura.asn.au (Global: low place; English: low place)

cactustoclouds.com (Global: low place; English: low place)

cbc.ca (Global: 115th place; English: 82nd place)

comrades.com (Global: low place; English: low place)

raceday.comrades.com

d-u-v.org (Global: low place; English: low place)

statistik.d-u-v.org

dreamnews.jp (Global: low place; English: low place)

endurancesport.co.nz (Global: low place; English: low place)

forbesindia.com (Global: 1,886th place; English: 990th place)

g2gultra.com (Global: low place; English: low place)

garyrobbinsrun.com (Global: low place; English: low place)

gomu.org (Global: low place; English: low place)

hindu.com (Global: 261st place; English: 171st place)

iaaf.org (Global: 588th place; English: 546th place)

iau-ultramarathon.org (Global: low place; English: low place)

irunfar.com (Global: low place; English: low place)

japantimes.co.jp (Global: 389th place; English: 273rd place)

info.japantimes.co.jp

jfk50mile.org (Global: low place; English: low place)

laufreport.de (Global: low place; English: low place)

marathondessables.com (Global: low place; English: low place)

montane.com (Global: low place; English: low place)

outsideonline.com (Global: 3,590th place; English: 2,112th place)

rapidascent.com.au (Global: low place; English: low place)

remezcla.com (Global: 4,626th place; English: 3,055th place)

run2.au (Global: low place; English: low place)

runnersworld.com (Global: 5,666th place; English: 3,405th place)

runyoung50.co.uk (Global: low place; English: low place)

scmp.com (Global: 362nd place; English: 245th place)

spartathlon.gr (Global: low place; English: low place)

srichinmoyraces.org (Global: low place; English: low place)

3100.srichinmoyraces.org

taraweraultra.co.nz (Global: low place; English: low place)

theworld.org (Global: low place; English: low place)

tjar.jp (Global: low place; English: low place)

ultramarathon.se (Global: low place; English: low place)

ultrarunninghistory.com (Global: low place; English: low place)

usatf.org (Global: 4,986th place; English: 2,994th place)

web.archive.org (Global: 1st place; English: 1st place)

worldathletics.org (Global: 795th place; English: 696th place)

abc.es (Global: 252^nd place; English: 1,041^st place)

amazon.com (Global: 105^th place; English: 79^th place)

cbc.ca (Global: 115^th place; English: 82^nd place)

forbesindia.com (Global: 1,886^th place; English: 990^th place)

hindu.com (Global: 261^st place; English: 171^st place)

iaaf.org (Global: 588^th place; English: 546^th place)

japantimes.co.jp (Global: 389^th place; English: 273^rd place)

outsideonline.com (Global: 3,590^th place; English: 2,112^th place)

remezcla.com (Global: 4,626^th place; English: 3,055^th place)

runnersworld.com (Global: 5,666^th place; English: 3,405^th place)

scmp.com (Global: 362^nd place; English: 245^th place)

usatf.org (Global: 4,986^th place; English: 2,994^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldathletics.org (Global: 795^th place; English: 696^th place)