Jan Sourek
ID 10222
Born : 1973 Cat. M50 Ultrarunner since 1998 CZE
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
6
Countries visited ?CZECzechiaFRAFranceITAItalyNEDNetherlandsRUSRussiaSVKSlovakia
53,5%
Rank quotient ?This runner's calculation uses 35 eligible race(s): Σ(rank − 1) = 2 775; Σ finishers = 5 185. 2 775 / 5 185 × 100 = 53.52%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed35
Km — ultra races3 926 km
> 100 km15
> 160 km3
> 200 km1
> 24h11
> 48h2
Longest race265,6 km
Self-Transcendence Race, 72h Kladno — 31/7/2003

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road93,3%
Trail1,2%
?5,5%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 34
🏅 Top 3 M4
Longest winning streak1
Current streak0

Records

100 km8h36'576 h64,87 km12 h124,06 km24 h182,41 km48 h154,00 km

HISTORY

44 race(s) · 7 split(s) nested
DateRacePerf.Rk
2006
27.05 6h CZESelf-Transcendence 6 h race Prag 64.871 km6
2005
08.10 100km CZEBreclav 9:17:01 h14
10.09 100km NED30. IAU 100km EC Winschoten 11:37:05 h115
06.08 24h CZESelf-Transcendence Race, 24h Kladno 134.222 km9
30.04 6h SVK6 hour Self Transcendence Run Nitra 60.840 km9
18.03 6h CZEBrno Spring 6 Hour Indoor 62.900 km1 🏆
18.03 50km CZE6h Indoor Brno - 50km Split 4:32:26 h4
2004
23.10 6h CZEOpen race at IAU 24h WC & EC Brno - 6h Split 58.323 km9
23.10 12h CZEOpen race at IAU 24h WC & EC Brno - 12h Split 93.588 km16
23.10 24h CZEOpen race at IAU 24h WC & EC Brno 123.498 km18
31.07 24h CZESelf-Transcendence Race, 24h Kladno 103.438 km12
12.06 6h CZESelf-Transcendence 6 h race Prag 57.820 km12
30.05 100km ITAIAU 100km EC Firenze (32^ 100 km del Passatore) 14:03:05 h717
2003
11.10 12h NEDOpen race at IAU 24h WC & EC Uden - 12h Split 100.040 km124
11.10 24h NEDIAU 24h EC Uden 154.398 km92
11.10 24h NEDIAU 24h WC Uden 154.398 km113
31.07 24h CZESelf-Transcendence Race, 72h Kladno - 24h Split 137.000 km9
31.07 48h CZESelf-Transcendence Race, 72h Kladno - 48h Split 175.000 km17
31.07 72h CZESelf-Transcendence Race, 72h Kladno 265.551 km16
19.04 50mi RUSOpen Race at IAU 100km EC Chernogolovka - 50mi Split 7:36:48 h89
19.04 50km RUSOpen Race at IAU 100km EC Chernogolovka - 50km Split 3:52:15 h81
19.04 100km RUSOpen Race at IAU 100km EC Chernogolovka 8:36:57 h89
19.04 100km RUSIAU 100km EC Chernogolovka 8:36:57 h64
2002
14.09 50km NED27. IAU 100km EC Winschoten - 50km Split 4:25:52 h79
14.09 100km NED27. IAU 100km EC Winschoten 10:26:34 h89
29.06 12h CZESelf-Transcendence 12 h race Prag 108.165 km4
13.04 47km CZE50 km Marathon Mnisek pod Brdy 3:54:07 h27
22.03 48h CZE7. Brno Spring 48 Hour Indoor 154.000 km28
2001
29.09 100km NED26. IAU 100km EC Winschoten 9:28:44 h55
26.08 100km FRAIAU 100km WC Cleder - Open race 9:49:33 h467
26.08 100km FRAIAU 100km WC Cleder 9:49:33 h125
16.06 12h CZE7. Self-Transcendence 12 h race Prag 124.060 km2 🥈
16.06 100km CZE3. Self-Transcendence 100km Lauf Prag 8:57:12 h3 🥉
25.05 24h NED8th IAU 24h EC Apeldoorn (22e 24 uurs Apeldoorn) 182.407 km60
2000
21.10 24h NED7th IAU 24h EC Uden 156.672 km74
07.10 24h CZE2. Self-Transcendence 24h Lauf Prag 129.071 km13
17.06 12h CZE5. Self-Transcendence 12 h race Prag 107.226 km7
17.06 100km CZE2. Self-Transcendence 100km Lauf Prag 11:04:16 h12
29.04 100km FRAIAU 100km EC Belves (100 km du Périgord Noir) 12:03:50 h63
29.04 100km FRA24ème Open race at IAU 100km EC Belves (100 km du Périgord Noir) 12:03:50 h476
1999
09.10 24h CZE1. Self-Transcendence 24h Lauf Prag 167.200 km4
05.06 100km CZE1. Self-Transcendence 100km Lauf Prag 10:35:55 h6
05.06 12h CZE3. Self-Transcendence 12 h race Prag 109.373 km5
1998
06.06 6h CZE2. Self-Transcendence 6 h race Prag 59.100 km3 🥉