Jirka (Chakradhara) Caslava
ID 11886
Born : 1975 Cat. M50 Ultrarunner since 1998 CZE
34
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
89
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
4
Countries visited ?CZECzechiaSUISwitzerlandSVKSlovakiaUSAUnited States
44,4%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 800; Σ finishers = 1 800. 800 / 1 800 × 100 = 44.44%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races9 451 km
> 100 km20
> 160 km16
> 200 km16
> 24h9
> 48h7
Longest race806,3 km
14th Sri Chinmoy 10 Day Race — 22/4/2009

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road95,2%
Trail4,8%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 33
🏅 Top 3 M3
Longest winning streak0
Current streak0

Records

100 km14h45'236 h69,05 km12 h107,60 km24 h147,09 km48 h248,41 km6 d407,16 km

HISTORY

48 race(s) · 9 split(s) nested
DateRacePerf.Rk
2019
19.05 12h SUI31. Sri Chinmoy 12h Lauf Basel 57.851 km39
2015
13.06 6h CZESelf-Transcendence 6 h race Prag 61.352 km4
2014
25.07 48h CZESelf-Transcendence Race 48h Kladno 216.076 km12
20.06 100km CZEKrakonosova Stovka 100 km 14:45:23 h69
19.04 10d USA19th Sri Chinmoy 10 Day Race 693.627 km41
2013
14.06 100km CZEKrakonosova Stovka 100 km 18:52:40 h149
17.04 10d USA18th Sri Chinmoy 10 Day Race 724.204 km27
2012
20.07 48h CZESelf-Transcendence Race 48h Kladno 211.732 km14
18.04 10d USA17th Sri Chinmoy 10 Day Race 386.242 km34
2011
18.04 10d USA16th Sri Chinmoy 10 Day Race 704.892 km29
2010
30.07 48h CZESelf-Transcendence Race 48h Kladno 248.407 km9
19.06 100km CZEKrakonosova Stovka 100 km 20:30:00 h53
29.05 12h CZESelf-Transcendence 12 h race Prag 105.240 km6
08.05 24h SUI22. Self-Transcendence 24h Lauf Basel 143.909 km34
24.04 6h SVK6 hour Self Transcendence Run Nitra 69.050 km4
2009
07.08 48h CZESelf-Transcendence Race 48h Kladno 242.226 km9
20.06 100km CZEKrakonosova Stovka 100 km 21:07:00 h33
06.06 6h CZESelf-Transcendence 6 h race Prag 64.390 km8
22.04 24h USA14th Sri Chinmoy 10 Day Race - 24h Split 123.919 km14
22.04 48h USA14th Sri Chinmoy 10 Day Race - 48h Split 204.387 km24
22.04 6d USA14th Sri Chinmoy 10 Day Race - 6d Split 527.865 km22
22.04 10d USA14th Sri Chinmoy 10 Day Race 806.281 km26
2008
08.08 48h CZESelf-Transcendence Race, 48h Kladno 234.750 km8
31.05 12h CZESelf-Transcendence 12 h race Prag 94.276 km15
23.04 48h USA13th Sri Chinmoy 10 Day Race - 48h Split 194.730 km30
23.04 6d USA13th Sri Chinmoy 10 Day Race - 6d Split 469.928 km33
23.04 10d USA13th Sri Chinmoy 10 Day Race 806.281 km28
2007
03.08 48h CZESelf-Transcendence Race, 48h Kladno 221.893 km13
23.06 49km SVKXV. Non-Stop Beh Hrebenom Nizkych Tatier 6:31:00 h44
02.06 100km CZESelf-Transcendence 12 h race Prag - 100 km Split 10:59:40 h11
02.06 12h CZESelf-Transcendence 12 h race Prag 107.600 km8
26.04 6d USA12th Sri Chinmoy 10 Day Race - 6d Split 439.351 km29
26.04 48h USA12th Sri Chinmoy 10 Day Race - 48h Split 194.731 km18
26.04 10d USA12th Sri Chinmoy 10 Day Race 708.111 km27
2006
05.08 24h CZESelf-Transcendence Race, 24h Kladno 147.090 km21
27.05 6h CZESelf-Transcendence 6 h race Prag 69.024 km3 🥉
2005
11.06 6h CZESelf-Transcendence 6 h race Prag 60.726 km3 🥉
2004
12.06 6h CZESelf-Transcendence 6 h race Prag 67.330 km2 🥈
2002
24.04 10d USA7th Sri Chinmoy 10 Day Race 564.879 km12
2001
10.09 48h USA14th Sri Chinmoy Ultra Trio 700 Mile Race - 48h Split 193.121 km15
10.09 6d USA14th Sri Chinmoy Ultra Trio 700 Mile Race - 6d Split 460.272 km16
25.04 48h USA6th Sri Chinmoy 10 Day Race - 48h Split 196.340 km14
25.04 6d USA6th Sri Chinmoy 10 Day Race - 6d Split 465.100 km13
25.04 10d USA6th Sri Chinmoy 10 Day Race 727.423 km12
2000
30.04 6d USA3rd Sri Chinmoy 6 Day Race 407.164 km26
26.04 24h USA3rd Sri Chinmoy 6 Day Race - 24h Split 104.607 km26
26.04 48h USA3rd Sri Chinmoy 6 Day Race - 48h Split 173.809 km25
1998
06.06 6h CZE2. Self-Transcendence 6 h race Prag 49.540 km12