Kazimierz Bak
ID 30161
Born : 1956 Cat. M70 Ultrarunner since 1994 GER
29
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
44
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
5
Countries visited ?AUTAustriaBELBelgiumGERGermanyJPNJapanRSASouth Africa
5,8%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 7 417; Σ finishers = 127 424. 7 417 / 127 424 × 100 = 5.82%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed39
Km — ultra races3 015 km
> 100 km1
> 160 km1
> 200 km1
Longest race352,0 km
12. Wien-Bratislava-Budapest Ultramarathon — 19/10/2001

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road64,9%
Trail15,6%
Stage19,5%

Wins & podiums (ultra)

🏆 Win10
🏆 Win M10
🏅 Top 316
🏅 Top 3 M16
Longest winning streak3
Current streak0

Records

50 km3h09'08100 km6h24'29

HISTORY

37 race(s) · 1 stage(s) nested · 3 split(s) nested
DateRacePerf.Rk
2003
16.06 89km road race RSA78th Comrades Marathon - Down Run 8:41:37 h2230
19.04 56km road race RSA34th Two Oceans Marathon 5:02:54 h1524
2002
17.06 87km road race RSA77th Comrades Marathon - Up Run 7:16:24 h348
25.05 74.5km GER30. GutsMuths-Rennsteiglauf - DUV-DM im Cross- und Landschaftslauf 6:05:08 h14
13.04 50km GER7. Leipziger 50 km Lauf am Auensee (DUV-DM) 3:17:31 h2 🥈
2001
22.10 60km HUN12. Wien-Bratislava-Budapest Ultramarathon - 4. Etappe 4:56:03 h6
21.10 61km HUN12. Wien-Bratislava-Budapest Ultramarathon - 3. Etappe 5:12:43 h7
20.10 116km SVK12. Wien-Bratislava-Budapest Ultramarathon - 2. Etappe 13:23:42 h21
19–23.10 352km/5stages AUT12. Wien-Bratislava-Budapest Ultramarathon 32:41:42 h12
16.06 89km road race RSA76th Comrades Marathon - Down Run 7:53:30 h1085
14.04 56km RSA32rd Two Oceans Marathon 3:58:03 h240
2000
16.06 87km road race RSA75th Comrades Marathon - Up Run 7:31:50 h742
22.04 56km RSA31st Two Oceans Marathon 3:53:10 h167
1999
15.05 76km GER27. GutsMuths-Rennsteiglauf 5:23:37 h3 🥉
1998
19.06 100km BEL19. Nacht van Vlaanderen, 100km Torhout 7:12:12 h21
16.05 76km GER26. GutsMuths-Rennsteiglauf 5:34:06 h6
22.03 50km GER7. 50 km Lauf Eschollbrücken 3:09:08 h1 🏆
1997
21.09 60km GEREdersee Supermarathon 60km 4:08:43 h2 🥈
16.06 89km RSA72nd Comrades Marathon - Down Run 5:58:44 h28
29.03 56km RSA28th Two Oceans Marathon 3:35:20 h69
1996
19.10 100km GER12. Int. Deutscher 100km-Lauf des SSC Hanau-Rodenbach - Open race 6:34:18 h1 🏆
19.10 100km GER12. Int. Deutscher 100km-Lauf des SSC Hanau-Rodenbach - DM 6:34:18 h1 🏆
06.10 58km GER4. Böhmweglauf 4:04:28 h3 🥉
21.09 50km GER6. 100 km Neuwittenbek - 50km Split 3:07:19 h1 🏆
21.09 100km GER6. 100 km Lauf Neuwittenbek 6:39:03 h1 🏆
17.06 87km RSA71st Comrades Marathon - Up Run 5:49:04 h13
06.04 56km RSA27th Two Oceans Marathon 3:26:54 h24
1995
08.10 58km GER3. Böhmweglauf 3:53:04 h1 🏆
20.05 89km RSA70th Comrades Marathon - Down Run 7:43:10 h900
26.02 60km GER3. 60 km Marburg 3:44:16 h1 🏆
1994
24.09 100km GER4. 100 km Lauf Neuwittenbek - offener Lauf 6:42:48 h1 🏆
24.09 100km GER4. 100 km Lauf Neuwittenbek 6:42:48 h1 🏆
26.06 100km JPN9. Lake Saroma 100 km Ultramarathon 6:24:29 h3 🥉
26.06 100km JPNIAU 100km WC Yubetsu (9. Lake Saroma 100 km Ultramarathon) 6:24:29 h3 🥉
28.05 66.5km GER22. GutsMuths-Rennsteiglauf 4:26:38 h1 🏆
16.04 50km GER11. Int. Deutscher 100km-Lauf des SSC Hanau-Rodenbach - 50km Split 2:59:51 h—
16.04 100km GER11. Int. Deutscher 100km-Lauf des SSC Hanau-Rodenbach 6:27:59 h1 🏆