John Stumke
ID 65798
Born : 1950 Cat. M75 Ultrarunner since 1980 RSA
33
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
1
Countries visited ?RSASouth Africa
50,7%
Rank quotient ?This runner's calculation uses 33 eligible race(s): Σ(rank − 1) = 93 101; Σ finishers = 183 588. 93 101 / 183 588 × 100 = 50.71%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races3 416 km
> 100 km6
> 160 km6
> 200 km2
> 24h2
> 48h2
Longest race432,0 km
4. Six Day Circuit Race Ruimsig — 6/4/1998

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road92,7%
Trail7,3%

Records

50 km7h08'27100 mi17h38'5012 h85,58 km48 h225,00 km6 d432,00 km

HISTORY

34 race(s) · 1 split(s) nested
DateRacePerf.Rk
2003
13.09 50km RSA11. Mont-Aux-Sources 50km Challenge 8:57:55 h193
2002
14.09 50km RSA10. Mont-Aux-Sources 50km Challenge 8:50:15 h159
2001
01.09 50km RSA9. Mont-Aux-Sources 50km Challenge 7:08:27 h132
2000
02.09 50km RSA8. Mont-Aux-Sources 50km Challenge 8:27:35 h118
29.07 12h RSA5th Longest Day 12 Hour Track Race 81.000 km50
16.06 87km road race RSA75th Comrades Marathon - Up Run 11:50:04 h18501
1999
04.09 50km RSA7. Mont-Aux-Sources 50km Challenge 8:45:26 h158
31.07 12h RSA4th Longest Day 12 Hour Track Race 85.584 km26
1998
28.08 100mi RSA1st Midlands 100 Miler 25:19:34 h46
16.06 87km RSA73rd Comrades Marathon - Up Run 10:53:43 h9742
06.04 48h RSA4. Six Day Circuit Race Ruimsig - 48h Split 190.000 km12
06.04 6d RSA4. Six Day Circuit Race Ruimsig 432.000 km10
1997
16.06 89km RSA72nd Comrades Marathon - Down Run 10:55:47 h10973
29.03 48h RSA1. 48 Hour Circuit Race Ruimsig 225.000 km5
1996
17.06 87km RSA71st Comrades Marathon - Up Run 10:45:04 h9823
1995
20.05 89km RSA70th Comrades Marathon - Down Run 10:32:21 h7275
15.04 56km RSA26th Two Oceans Marathon 5:34:46 h4419
1994
31.05 87km RSA69th Comrades Marathon - Up Run 10:52:22 h9480
1992
30.05 87km RSA67th Comrades Marathon - Up Run 10:05:03 h6277
1991
31.05 89km RSA66th Comrades Marathon - Down Run 8:03:33 h1789
1990
31.05 87km road race RSA65th Comrades Marathon - Up Run 8:36:25 h2317
1989
31.05 89km RSA64th Comrades Marathon - Down Run 7:39:09 h1007
1988
31.05 87km RSA63rd Comrades Marathon - Up Run 7:44:19 h1168
1987
16.10 100mi RSAJohannesburg 100 Mile Track Race 22:13:00 h26
04.09 100mi RSA6th Golden Reef 100 Miler 20:30:27 h21
11.07 100mi RSA11th Washie 100 Miler 17:38:50 h7
31.05 87km RSA62nd Comrades Marathon - Up Run 7:21:09 h497
1986
31.05 89km RSA61st Comrades Marathon - Down Run 7:21:58 h885
1985
31.05 88km RSA60th Comrades Marathon - Up Run 9:15:20 h3172
1984
01.06 90km RSA59th Comrades Marathon - Down Run 7:10:17 h423
1983
31.05 88km RSA58th Comrades Marathon - Up Run 8:19:10 h1206
1981
01.06 90km RSA56th Comrades Marathon - Up Run 9:23:00 h1886
18.04 56km RSA12th Two Oceans Marathon 4:26:08 h459
1980
31.05 90km RSA55th Comrades Marathon - Down Run 7:56:00 h884