United StatesM20s
Mark Dowdle
Last Soul champion and German-soil record holder
942026 Last Soul yards
73Go One More yards
The people behind the distances
Ultrarunner Profiles
Verified performances, career progression, records, and the races that shaped them—connected across formats and traced back to public result sources.
Launch collection
Meet the runners
Records last reviewed August 18, 2026. Follow each source link for the complete organizer or database record.
View athlete record
GermanyM35–39
Hendrik Boury
German backyard record holder and elite 48-hour runner
100German record
363.86248-hour kilometres
GermanyM45
Norman Mascher-Aspensjö
Back-to-back German 24-hour champion
243.24724-hour kilometres
2×German champion
GermanyOpen
Martin Stiller
GreenLoop winner and Last Soul final-five runner
66Last Soul yards
442.5Last Soul kilometres
GermanyM20s
Ayyoub El Osrouti
Last Soul assist and Germany’s provisional No. 2
932026 Last Soul yards
43:07Record-breaking yard
United StatesM50
Harvey Lewis
Two-time Big’s champion and Badwater 135 winner
108Backyard best
25:50:23Badwater 135
AustraliaM40
Phil Gore
119-yard Backyard Ultra world-record holder and 2025 Big’s champion
119Backyard Ultra world record
114Big’s yards
LithuaniaM40
Aleksandr Sorokin
24-hour and 100 km world-record holder
319.61424-hour world record
6:05:35100 km world record
ItalyM40
Andrea Marcato
Six-time 3,100 Mile champion and 10-day specialist
6×3,100 Mile champion
42d 17h3,100 Mile best
FinlandM55
Ashprihanal Aalto
3,100 Mile course-record holder and nine-time winner
40d 09h3,100 Mile record
9×3,100 Mile winner
United StatesW40
Courtney Dauwalter
Three-race 2023 trail champion and 200-mile specialist
3Major 100-mile wins
2d 09:55Moab 240
Great BritainW45
Sarah Webster
24-hour world-record holder and 100 km medalist
278.621 kmRatified 24-hour world record
7:03:40100 km best
PolandW50
Patrycja Bereznowska
48-hour benchmark setter and 24-hour world champion
436.371 kmPolish 48-hour record
259.991 km24-hour world title
CanadaW50
Viktoria Brown
72-hour record setter and six-day champion
471.631 kmFormer 72-hour world record
747.384 kmSix-day best
United StatesW45
Maggie Guterl
First woman to win Big’s and Cocodona 250 champion
60Big’s yards
3d 13:30Cocodona 250
GermanyOpen
Caroline Maria Bolte
Provisional German women’s backyard record setter
52Last Soul yards
348.7 kmLast Soul distance
GermanyM65
Hubert Karl
Provisional German M65 backyard record setter
45Last Soul yards
25×Spartathlon
PolandM45
Łukasz Wróbel
Two-time Legends champion and former 116-yard world-record holder
116Backyard best
114Legends title defense
BelgiumM40
Jan Vandekerckhove
Belgian 115-yard record holder and elite 24-hour runner
115Belgian backyard best
236.182 km24-hour best
BelgiumM45
Frank Gielen
Belgian team world champion and 110-yard record setter
110Shared world-best mark
900.487 kmSix-day best
New ZealandM30
Sam Harvey
New Zealand record holder and 118-yard world-record assist
118New Zealand record
15:16:54Tarawera 100 Mile
United StatesM45–49
Andrew Glaze
High-volume ultrarunner with repeated 200-mile-plus finishes
308.6 miArizona Monster 300
103:12:32Cocodona 250
GermanyM20s
Kim Gottwald
Last Soul Ultra winner and Go One More podium finisher
67 lapsLast Soul Ultra
58 loopsGo One More
Costa RicaM20s
Kendall Picado Fallas
Costa Rican backyard record holder and Go One More 2026 assist
72 yardsNational best
482.904 kmLongest result
United StatesOpen
Mike Egan
24-hour wheelchair world-record holder and adaptive endurance athlete
245.2 km24-hour wheelchair record
27 loopsGo One More
BelgiumM50–54
Merijn Geerts
Five-time 100-yard runner and former backyard world-record co-holder
110 yardsBackyard best
5100-yard finishes
BelgiumM50–54
Ivo Steyaert
113-yard Big’s assist and former backyard world-record co-holder
113 yardsBackyard best
110 yardsFormer record share
BelgiumM35–39
Karel Sabbe
Barkley finisher, trail speed-record setter, and 2020 backyard world champion
46d 12h 50mPacific Crest Trail
59:53:33Barkley Marathons
United KingdomW35–39
Sarah Perry
Women’s Backyard Ultra world-record holder at 95 yards
95 yardsWomen’s world record
637.070 kmRecord distance
United StatesOpen
Megan Eckert
Six-day 970.685 km performer and 92-yard backyard runner
970.685 kmSix-day performance
92 yardsBackyard best
United StatesW60–64
Jennifer Russo
76-yard backyard runner and women’s age-group benchmark setter
76 yardsBackyard best
720 yardsPublished career total
DenmarkW45–49
Stine Rex
Guinness six-day record holder and 48-hour world champion
928.577 kmSix-day world record
435.564 km48-hour best
GreeceM70–74
Yiannis Kouros
The defining figure of modern multiday running
160+World records broken
1,036.8 kmSix-day world record
FranceW35–39
Claire Bannwarth
Tahoe 200 outright winner and French 24-hour team medalist
62:24:42Tahoe 200
232.599 km24-hour championship
United KingdomW40–44
Jasmin Paris
First woman to finish the Barkley Marathons and 2019 Spine Race winner
59:58:21Barkley Marathons
83:12:23Spine Race
United StatesW35–39
Rachel Entrekin
2026 Cocodona 250 outright winner and course-record holder
56:09:48Cocodona 250 record
3 winsCocodona women’s titles
BelgiumM30–34
Matthieu Bonne
IAU 48-hour record holder and six-day world-best performer
485.099 km48-hour world record
1,045.519 kmSix-day world best
UkraineM40–44
Andrii Tkachuk
2025 IAU 24-Hour world champion and elite 48-hour runner
294.346 kmWorld-title distance
295.363 km24-hour best
AustraliaW35–39
Holly Ranson
24-hour world silver medalist and Australian backyard record holder
274.172 km24-hour best
61 yardsAustralian backyard record
JapanW35–39
Miho Nakata
Former 24-hour world-record holder and 2026 Asia–Oceania champion
271.987 km24-hour best
270.363 kmFormer world record
United StatesW30–34
Tara Dower
Appalachian Trail and Long Trail supported FKT setter
40d 18h 06mAppalachian Trail FKT
3d 18h 30mLong Trail FKT
BrazilW45–49
Manuela Vilaseca
2025 women’s Triple Crown of 200s champion and record holder
201:02:06Triple Crown record
57:57:33Bigfoot 200
RussiaM35–39
Ivan Zaborsky
1,047.554 km six-day performer and 2026 Moscow ten-day champion
1,047.554 kmSix-day performance
1,363.763 kmTen-day performance
United StatesM40–44
John Kelly
Three-time Barkley finisher, Spine Race winner, and FKT setter
3 finishesBarkley Marathons
5d 12h 14mWainwrights 214 FKT
United KingdomM50–54
Damian Hall
Spine Race, Northern Traverse, and Lakeland 100 champion
42:56:50Northern Traverse
19:33:33Lakeland 100
United StatesM30–34
Joe McConaughy
Northbound Appalachian Trail self-supported record holder and Cocodona champion
45d 12h 15mAppalachian Trail
59:28:54Cocodona 250
United StatesM35–39
Michael McKnight
Arizona Monster 300 course-record holder and 200-mile specialist
82:49:45Arizona Monster 300
162:00:51Triple Crown sweep
CanadaM30–34
Ihor Verys
First Canadian Barkley finisher and 107-yard Big’s assist
58:44:59Barkley Marathons
107Big’s yards
HungaryW45–49
Edit Furesz
Hungarian backyard record holder with a 76-yard Big’s performance
76Big’s yards
60Hungary team yards
United StatesW30–34
Katie Schide
Two-time UltraRunner of the Year and Hardrock course-record holder
25:50:23Hardrock 100
22:09:31UTMB
United StatesM35–39
Jim Walmsley
Six-time UltraRunner of the Year and 2023 UTMB champion
6×UltraRunner of the Year
19:37:43UTMB
SpainM35–39
Kilian Jornet
Four-time UTMB winner and human-powered mountain-linkup athlete
4×UTMB winner
21:36:24Hardrock 100
United StatesM50–54
David Goggins
Moab 240 runner-up and repeat 200-mile finisher
62:21:29Moab 240
25:49:40Badwater 135
United StatesW40–44
Camille Herron
World champion across 50 km, 100 km, and 24 hours
22:35:31Spartathlon
901.768 kmSix-day distance
PolandM35–39
Bartosz Fudali
2026 GOMU 48-hour champion and 103-yard Big’s podium finisher
465.352 km48-hour best
103Backyard yards
NorwayM45–49
Jo Inge Norum
2025 IAU 24-Hour world silver medalist and Norwegian record holder
285.513 km24-hour best
263.347 kmBislett 24-Hour
FinlandM25–29
Matti Jonkka
2025 IAU 24-Hour world bronze medalist and Finnish record holder
283.699 km24-hour best
269.061 kmFinnish championship
HungaryM35–39
Tamás Bódis
Spartathlon champion and Hungarian 24-hour record holder
279.780 km24-hour best
15:44:45Ultrabalaton
CzechiaM50–54
Radek Brunner
2025 Spartathlon champion and M50 24-hour world record holder
21:24:35Spartathlon
271.182 km24-hour best
NorwayM45–49
Simen Holvik
M45 48-hour world record holder and 2025 Badwater champion
451.203 km48-hour best
21:47:45Badwater 135
PolandW40–44
Dominika Stelmach
Polish 100 km record holder and W40 12-hour world record holder
7:04:36100 km best
152.633 km12-hour best
United StatesW45–49
Marisa Lizak
Badwater 135 champion and elite 24-hour runner
25:07:31Badwater 135
252.280 km24-hour best
United StatesW40–44
Stephanie Rosebaugh
67-yard backyard runner and repeat Cocodona 250 finisher
67Backyard best
84:30:55Cocodona 250 best
United KingdomM45–49
John Stocker
Former backyard world-record holder and three-time Thames Ring champion
81Backyard best
58:52:12Thames Ring 250 best
United KingdomM40–44
Matthew Blackburn
British backyard record holder and 48-hour specialist
87British backyard record
368.330 km48-hour best
SwedenM50–54
Johan Steene
2018 Big’s champion and 24-hour world bronze medalist
68Big’s winning yards
266.515 km24-hour best
FranceM40–44
Guillaume Calmettes
2017 Big’s champion and Angeles Crest 100 winner
59Big’s winning yards
19:14:24Angeles Crest 100
New ZealandW35–39
Katie Wright
First woman to win a backyard ultra outright
50Big’s yards
20:19:19Tarawera 100 Mile
United StatesW35–39
Liz Canty
Cruel Jewel champion and repeat Western States finisher
20:55:49Western States best
26:34:53Cruel Jewel 105.9 Mile
United StatesM60–64
Joe Fejes
American six-day record setter and 2012 Big’s champion
975.654 kmSix-day best
379.821 km48-hour split
United StatesM60–64
Bob Hearn
Vol-State record setter and 530-mile six-day runner
530.159 miSix-day best
76:09:10Vol-State 500K
UkraineW35–39
Olena Shevchenko
24-hour world silver medalist and Ukrainian record holder
254.463 km24-hour national record
14:19:59100-mile best
Chinese TaipeiW55–59
Tsai Wen-Ya
Women’s 3,100-mile world-record holder
45d 12:28:443,100-mile world record
360.405 km48-hour best
SlovakiaW55–59
Kaneenika Janakova
Former 3,100-mile world-record holder and three-time finisher
48d 14:24:103,100-mile best
33,100-mile finishes
GermanyM70–74
Wolfgang Schwerk
Former 3,100-mile world-record holder and M60 record setter
41d 08:16:293,100-mile best
378.916 kmIAU M60 48-hour record
New ZealandW35-39
Ruth Croft
2025 UTMB champion and Western States winner
22:56:23UTMB
17:21:30Western States 100
FranceM40-44
François D'Haene
Four-time UTMB winner and 2026 GR20 record setter
4×UTMB winner
29:46:20Supported GR20
FranceM50-54
Ludovic Pommeret
Three-time Hardrock champion and current course-record holder
21:11:36Hardrock 100
3×Hardrock winner
United KingdomM30-34
Jack Scott
Spine Race course-record holder and 2026 Challenger winner
72:55:05Winter Spine Race
10:17:18Record improvement
United KingdomW45-49
Ellie Greenwood
Two-time 100 km world champion and former Western States record holder
2×IAU 100 km world champion
16:47:19Western States 100
United StatesW65–69
Ann Trason
Fourteen-time Western States champion and former 100 km world-best holder
14×Western States champion
17:37:51Western States 100
United StatesM50–54
Scott Jurek
Seven-time Western States champion and former Appalachian Trail record holder
7×Western States champion
46d 08:07Appalachian Trail
United StatesW65–69
Pam Reed
Two-time outright Badwater winner and former U.S. 24-hour track record holder
2×Badwater overall winner
223.634 km24-hour track best
AustraliaOpen
Cliff Young
1983 Sydney-to-Melbourne champion and Australian multiday running pioneer
5d 15:04Sydney to Melbourne
749.600 kmSix-day best
United StatesOpen
Ted Corbitt
Olympian, ultrarunning pioneer, and founder of U.S. road-course certification
303 milesSix-day performance
13:33:06100-mile track
CanadaOpen
Al Howie
Trans-Canada record setter and 1,300-mile pioneer
72d 10:23Trans-Canada crossing
16d 19:31:471,300-mile best
United KingdomOpen
Don Ritchie
Track-ultra pioneer and former 100 km world-best holder
6:10:20100 km track
11:30:51100-mile track
United KingdomOpen
Eleanor Adams-Robinson
Two-time 100 km world champion and multiday record setter
2×100 km world champion
240.169 km24-hour best
New ZealandOpen
Sandra Barwick
Former six-day world-best holder and 1,300-mile pioneer
883.631 kmSix-day best
17d 22:46:071,300-mile finish
United KingdomOpen
Lizzy Hawker
Five-time UTMB winner and 100 km world champion
5×UTMB winner
247.076 km24-hour road
United StatesOpen
Nikki Kimball
Three-time Western States winner and UTMB champion
3×Western States winner
25:23:45UTMB victory
United StatesOpen
Sally McRae
Moab 240 and Badwater 135 champion
86:18:33Moab 240 victory
30:48:47Badwater 135 victory
United StatesOpen
Jeff Browning
Hardrock 100 and Moab 240 champion
57:27:57Moab 240 victory
26:20:21Hardrock victory
United StatesOpen
Jeff Garmire
Southbound Appalachian Trail self-supported record holder
45d 08:37Appalachian Trail
252d 12hCalendar-year Triple Crown
United StatesOpen
Mika Thewes
Three-time Tahoe 200 winner and 200-mile specialist
51:10:27Tahoe 200 best
3×Tahoe 200 winner
MexicoOpen
Edher Ramirez
Cocodona podium finisher and 200-mile contender
63:10:13Cocodona best
51:58:57Mammoth 200
United StatesOpen
Sarah Ostaszewski
Cocodona and Moab 240 champion
72:50:27Cocodona victory
76:57:52Moab 240 victory
SwitzerlandOpen
Pushkar Müllauer
Four-time 3,100-mile finisher and Swiss record holder
4×3,100-mile finisher
46d 10:41:043,100-mile best
AustraliaOpen
Dipali Cunningham
18-time six-day winner and former road world-best holder
18×Six-day women’s winner
825.593 kmSix-day best
United StatesOpen
Suprabha Beckjord
Women’s record holder with 13 finishes at 3,100 miles
13×3,100-mile finisher
49d 14:30:543,100-mile best
Editorial standard
What you can trust here
Athlete records often conflict across databases. These pages show where each important fact came from and where uncertainty still exists.
Sources stay visible
Major results link directly to organizers, timing records, or established ultramarathon databases.
No invented biography
Personal stories are added only when a runner or reliable published interview provides them.
Corrections are welcome
Athletes can supply an image, clarify identity, or point us to a stronger primary source.