Robert Ketjen
ID 343748
Born : 1941 Cat. M85 Ultrarunner since 1979 RSA
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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
18,6%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 23 803; Σ finishers = 127 662. 23 803 / 127 662 × 100 = 18.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races1 623 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

22 race(s)
DateRacePerf.Rk
1991
30.03 56km RSA22nd Two Oceans Marathon 4:55:57 h2082
1990
31.05 87km road race RSA65th Comrades Marathon - Up Run 8:28:24 h2075
14.04 56km RSA21st Two Oceans Marathon 4:35:21 h1356
1989
31.05 89km RSA64th Comrades Marathon - Down Run 7:37:19 h984
25.03 56km RSA20th Two Oceans Marathon 4:34:25 h926
1988
31.05 87km RSA63rd Comrades Marathon - Up Run 7:15:45 h559
1987
31.05 87km RSA62nd Comrades Marathon - Up Run 7:43:53 h858
18.04 56km RSA18th Two Oceans Marathon 4:24:43 h732
1986
31.05 89km RSA61st Comrades Marathon - Down Run 7:29:59 h1194
29.03 56km RSA17th Two Oceans Marathon 4:23:49 h827
1985
31.05 88km RSA60th Comrades Marathon - Up Run 8:35:48 h1910
06.04 56km RSA16th Two Oceans Marathon 4:22:23 h682
1984
01.06 90km RSA59th Comrades Marathon - Down Run 7:57:27 h1357
21.04 56km RSA15th Two Oceans Marathon 4:15:27 h466
1983
31.05 88km RSA58th Comrades Marathon - Up Run 8:42:18 h1673
02.04 56km RSA14th Two Oceans Marathon 4:11:37 h368
1982
31.05 91km RSA57th Comrades Marathon - Down Run 7:47:28 h777
10.04 56km RSA13th Two Oceans Marathon 4:58:23 h1160
1981
01.06 90km RSA56th Comrades Marathon - Up Run 8:13:01 h845
1980
31.05 90km RSA55th Comrades Marathon - Down Run 7:55:00 h860
05.04 56km RSA11th Two Oceans Marathon 4:14:41 h259
1979
31.05 87km RSA54th Comrades Marathon - Up Run 9:39:23 h1875