Alson Sibi Nzama
ID 800645
Born : 1972 Cat. M50 Ultrarunner since 2016 RSA
33
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
45
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
23,7%
Rank quotient ?This runner's calculation uses 35 eligible race(s): Σ(rank − 1) = 41 220; Σ finishers = 174 290. 41 220 / 174 290 × 100 = 23.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed35
Km — ultra races2 707 km
> 100 km5
> 160 km2
Longest race160,9 km
5th Capital Classic 100 Mile — 23/9/2017

Km per year (ultra races)

323
4 races
2022
139
2 races
2023
139
2 races
2024
142
2 races
2025
142
2 races
2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 33
🏅 Top 3 M3
Longest winning streak0
Current streak0

Records

50 km4h56'08100 mi21h25'3012 h103,52 km

HISTORY

35 race(s) · 3 split(s) nested
DateRacePerf.Rk
2026
14.06 86km RSA99th Comrades Marathon - Up Run 9:00:42 h3754
05.04 56km RSA56th Two Oceans Marathon 4:58:38 h1629
2025
08.06 90km RSA98th Comrades Marathon - Down Run 8:44:38 h2576
27.04 52km RSA6th Prince Mangosuthu Ultra Marathon 5:51:24 h395
2024
09.06 87km RSA97th Comrades Marathon - Up Run 8:58:24 h3506
05.05 52km RSA5th Prince Mangosuthu Ultra Marathon 4:53:22 h169
2023
11.06 87km RSA96th Comrades Marathon - Down Run 8:30:41 h2146
30.04 52km RSA4th Prince Mangosuthu Ultra Marathon 4:46:43 h197
2022
28.08 90km RSA95th Comrades Marathon - Down Run 8:59:02 h2125
02.07 12h RSA5th The Longest Day Outside Lane - Run 103.517 km15
16.04 56km RSA52th Two Oceans Marathon 5:01:30 h769
05.03 73.3km RSA4th Kijima Kosmos 3-in-1 7:33:30 h179
2019
09.06 87km RSA94th Comrades Marathon - Up Run 9:15:04 h3331
28.04 48km RSA1st South Coast Ultra Marathon 4:59:38 h108
14.04 52km RSA9th Chatsworth Freedom Ultramarathon 52 km 4:54:28 h258
06.04 52km RSA54th Arthur Cresswell Memorial Marathon Bergville to Ladysmith 4:45:51 h138
24.03 56km RSA4th Zululand 56 km Ultra Marathon 5:49:35 h180
2018
24.08 12h RSA3rd The Longest Day Inside Lane - Run 101.007 km19
04.08 12h RSA23rd Longest Day 12 Hour Track Race 101.007 km4
10.06 90km RSA93rd Comrades Marathon - Down Run 9:02:10 h3164
22.04 52km RSA8th Chatsworth Freedom Ultramarathon 52 km 5:06:41 h308
31.03 56km RSA49th Two Oceans Marathon 5:16:14 h1765
2017
23.09 100mi RSA5th Capital Classic 100 Mile 21:25:30 h2 🥈
05.08 12h RSA2nd The Longest Day Inside Lane - Run 93.312 km4
05.08 12h RSA22nd Longest Day 12 Hour Track Race 93.312 km7
04.06 87km RSA92nd Comrades Marathon - Up Run 10:17:13 h5290
01.05 50km RSA2nd Hibiscus Coast Challenge 4:56:08 h104
23.04 52km RSA7th Chatsworth Freedom Ultramarathon 52 km 5:07:29 h392
01.04 52km RSA52nd Arthur Cresswell Memorial Marathon Bergville to Ladysmith 5:30:41 h215
19.03 56km RSA2nd Zululand 56 km Ultra Marathon 6:03:13 h324
2016
17.09 100mi RSA4th Capital Classic 100 Mile 22:16:46 h2 🥈
06.08 12h RSA1st The Longest Day Middle Lane - Run 90.440 km3 🥉
06.08 12h RSA21st Longest Day 12 Hour Track Race 90.440 km5
29.05 89km RSA91st Comrades Marathon - Down Run 10:46:21 h7877
24.04 52km RSA6th Chatsworth Freedom Ultramarathon 52 km 4:48:08 h295