Riaan van Zyl
ID 36812
Born : 1974 Cat. M50 Ultrarunner since 1993 RSA
52
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
52
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
22,4%
Rank quotient ?This runner's calculation uses 56 eligible race(s): Σ(rank − 1) = 79 247; Σ finishers = 353 912. 79 247 / 353 912 × 100 = 22.39%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed56
Km — ultra races3 868 km
> 100 km3
> 160 km2
Longest race160,9 km
1st Mac Mac Ultra 100 Mile — 24/5/2019

Km per year (ultra races)

109
2 races
2022
56
1 race
2023
203
3 races
2024
146
2 races
2025
56
1 race
2026

Race types (share of distance)

Road60,7%
Trail39,3%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M3
Longest winning streak0
Current streak0

Records

50 km5h58'00100 km15h57'23100 mi26h19'26

HISTORY

57 race(s) · 13 split(s) nested
DateRacePerf.Rk
2026
05.04 56km RSA56th Two Oceans Marathon 5:33:13 h3279
2025
08.06 90km RSA98th Comrades Marathon - Down Run 9:27:55 h4629
06.04 56km RSA55th Two Oceans Marathon 5:36:51 h3342
2024
09.06 87km RSA97th Comrades Marathon - Up Run 8:21:28 h1897
13.04 56km RSA54th Two Oceans Marathon 4:35:19 h642
02.03 60km RSA1st Pass2Pass Ultra-Trail 8:25:30 h42
2023
15.04 56km RSA53th Two Oceans Marathon 4:39:07 h574
2022
30.07 53km RSA8th Merrell Whale of Trail 8:29:06 h66
16.04 56km RSA52th Two Oceans Marathon 4:41:16 h429
2020
14.11 50km RSA24th Three Peaks Challenge 7:39:31 h28
10.10 100km RSA7th Cederberg Traverse 100 km 21:06:00 h12
2019
24.05 100mi RSA1st Mac Mac Ultra 100 Mile 32:36:23 h14
20.04 56km RSA50th Two Oceans Marathon 4:19:04 h357
2018
03.11 55km RSA22th Three Peaks Challenge 8:17:49 h31
13.10 100km RSA5th Cederberg Traverse 100 km 22:38:00 h11
25.08 102km RSASchaap River Canyon Ultra 100 km Run 12:34:42 h2 🥈
07.07 52km RSA30th Rhodes 52 km Trail Run 6:29:57 h24
10.06 90km RSA93rd Comrades Marathon - Down Run 8:45:04 h2246
31.03 56km RSA49th Two Oceans Marathon 4:44:00 h733
2017
02.12 100km RSA4th Ultra-Trail Cape Town (UTCT) 100 km 15:57:23 h85
24.09 55km RSA4. Marloth Mountain Challenge 9:05:43 h16
15.04 56km RSA48th Two Oceans Marathon 5:03:19 h1346
11.03 100mi RSA13th Addo Elephant 100 Mile Trail Run 26:19:26 h7
2016
29.05 89km RSA91st Comrades Marathon - Down Run 7:22:33 h496
26.03 56km RSA47th Two Oceans Marathon 4:59:31 h1236
2015
07.11 55km RSA19th Three Peaks Challenge 6:37:37 h15
27.09 55km RSA2. Marloth Mountain Challenge 9:32:11 h22
31.05 87km RSA90th Comrades Marathon - Up Run 8:27:04 h1159
04.04 56km RSA46th Two Oceans Marathon 4:28:43 h415
2014
18.04 56km road race RSA45th Two Oceans Marathon 4:48:41 h838
2013
30.03 56km road race RSA44th Two Oceans Marathon 5:11:17 h1735
2012
07.04 56km road race RSA43rd Two Oceans Marathon 4:52:11 h1033
2011
16.07 52km RSA23rd Rhodes 52 km Trail Run 6:46:31 h50
23.04 50km road race RSA42nd Two Oceans Marathon - 50km Split 4:09:03 h711
2009
18.07 52km RSA21st Rhodes 52 km Trail Run 6:30:40 h41
14.03 50km RSAMidnight Hell Run 50km 5:58:00 h4
2008
08.11 55km RSA12th Three Peaks Challenge 7:30:21 h19
12.07 52km RSA20th Rhodes 52 km Trail Run 6:18:32 h51
23.02 50km RSAMidnight Hell Run 50km 6:29:30 h2 🥈
2006
15.07 52km RSA18th Rhodes 52 km Trail Run 5:49:11 h34
2002
30.03 56km RSA33rd Two Oceans Marathon 5:29:07 h2527
2001
14.04 56km RSA32rd Two Oceans Marathon 4:56:22 h1458
2000
16.06 87km road race RSA75th Comrades Marathon - Up Run 10:00:30 h7123
22.04 56km RSA31st Two Oceans Marathon 4:42:37 h1111
1999
03.04 56km RSA30th Two Oceans Marathon 5:15:23 h2470
1998
16.06 87km RSA73rd Comrades Marathon - Up Run 9:05:04 h2818
11.04 56km RSA29th Two Oceans Marathon 4:43:08 h1208
1997
16.06 89km RSA72nd Comrades Marathon - Down Run 8:36:50 h2308
29.03 56km RSA28th Two Oceans Marathon 4:42:41 h1278
1996
17.06 87km RSA71st Comrades Marathon - Up Run 8:57:20 h3174
06.04 56km RSA27th Two Oceans Marathon 4:42:51 h1330
1995
20.05 89km RSA70th Comrades Marathon - Down Run 9:41:25 h4285
15.04 56km RSA26th Two Oceans Marathon 4:33:42 h1036
1994
31.05 87km RSA69th Comrades Marathon - Up Run 9:39:14 h4424
02.04 56km RSA25th Two Oceans Marathon 4:58:50 h2354
1993
31.05 89km RSA68th Comrades Marathon - Down Run 10:52:14 h10581
10.04 56km RSA24th Two Oceans Marathon 5:03:52 h2856