Ivan Stone
ID 756971
Born : 1942 Cat. M80 Ultrarunner since 1979 RSA
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
42,5%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 70 557; Σ finishers = 166 051. 70 557 / 166 051 × 100 = 42.49%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races2 023 km
Longest race91,0 km
57th Comrades Marathon - Down Run — 31/5/1982

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road100,0%

Records

No record for a classic ultra format

HISTORY

28 race(s)
DateRacePerf.Rk
1992
30.05 87km RSA67th Comrades Marathon - Up Run 9:40:15 h4928
18.04 56km RSA23rd Two Oceans Marathon 5:15:36 h3394
1991
31.05 89km RSA66th Comrades Marathon - Down Run 9:23:50 h4968
30.03 56km RSA22nd Two Oceans Marathon 5:17:39 h3283
1990
31.05 87km road race RSA65th Comrades Marathon - Up Run 9:41:55 h4974
14.04 56km RSA21st Two Oceans Marathon 5:06:23 h2988
1989
31.05 89km RSA64th Comrades Marathon - Down Run 9:43:23 h5071
25.03 56km RSA20th Two Oceans Marathon 5:09:10 h2412
1988
31.05 87km RSA63rd Comrades Marathon - Up Run 8:49:28 h2963
02.04 56km RSA19th Two Oceans Marathon 4:55:22 h1950
1987
31.05 87km RSA62nd Comrades Marathon - Up Run 9:39:18 h3864
18.04 56km RSA18th Two Oceans Marathon 5:10:37 h2549
1986
31.05 89km RSA61st Comrades Marathon - Down Run 8:52:27 h3432
29.03 56km RSA17th Two Oceans Marathon 5:04:20 h2304
1985
31.05 88km RSA60th Comrades Marathon - Up Run 9:24:14 h3484
06.04 56km RSA16th Two Oceans Marathon 5:12:31 h2360
1984
01.06 90km RSA59th Comrades Marathon - Down Run 8:56:59 h2853
21.04 56km RSA15th Two Oceans Marathon 4:36:57 h985
1983
31.05 88km RSA58th Comrades Marathon - Up Run 9:12:39 h2378
02.04 56km RSA14th Two Oceans Marathon 5:25:04 h1920
1982
31.05 91km RSA57th Comrades Marathon - Down Run 8:49:49 h1804
10.04 56km RSA13th Two Oceans Marathon 4:51:51 h1024
1981
01.06 90km RSA56th Comrades Marathon - Up Run 7:57:54 h680
18.04 56km RSA12th Two Oceans Marathon 4:32:52 h560
1980
31.05 90km RSA55th Comrades Marathon - Down Run 8:23:00 h1284
05.04 56km RSA11th Two Oceans Marathon 4:35:25 h487
1979
31.05 87km RSA54th Comrades Marathon - Up Run 8:47:35 h1139
14.04 56km RSA10th Two Oceans Marathon 4:56:54 h547