John Bryce
ID 1333008
Ultrarunner since 1978 RSA
11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
65,9%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 23 067; Σ finishers = 35 014. 23 067 / 35 014 × 100 = 65.88%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed11
Km — ultra races684 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

11 race(s)
DateRacePerf.Rk
1986
31.05 89km RSA61st Comrades Marathon - Down Run 10:14:09 h7187
29.03 56km RSA17th Two Oceans Marathon 4:56:22 h1983
1985
06.04 56km RSA16th Two Oceans Marathon 5:20:19 h2623
1984
21.04 56km RSA15th Two Oceans Marathon 5:09:37 h1965
1983
02.04 56km RSA14th Two Oceans Marathon 5:22:46 h1869
1982
31.05 91km RSA57th Comrades Marathon - Down Run 9:41:15 h2912
10.04 56km RSA13th Two Oceans Marathon 4:58:32 h1167
1981
18.04 56km RSA12th Two Oceans Marathon 5:14:08 h1139
1980
05.04 56km RSA11th Two Oceans Marathon 5:14:03 h978
1979
14.04 56km RSA10th Two Oceans Marathon 5:13:40 h717
1978
25.03 56km RSA9th Two Oceans Marathon 5:24:14 h538