Joey Madutung
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Born : 1970
Cat. M55 Ultrarunner since 1995
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
29
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 ?South Africa
South Africa9,7%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 12 711; Σ finishers = 130 499. 12 711 / 130 499 × 100 = 9.74%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 090 km
Longest race90,0 km
98th Comrades Marathon - Down Run — 8/6/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 25.04 | 50km | 37th Loskop Ultra Marathon 50km |
4:24:33 h | 285 |
| 2025 | ||||
| 08.06 | 90km | 98th Comrades Marathon - Down Run |
8:13:05 h | 1573 |
| 26.04 | 50km | 36th Loskop Ultra Marathon 50km |
4:08:32 h | 162 |
| 2024 | ||||
| 09.06 | 87km | 97th Comrades Marathon - Up Run |
8:09:22 h | 1587 |
| 20.04 | 50km | 35th Loskop Ultra Marathon 50km |
4:02:35 h | 105 |
| 31.03 | 50km | City2City Ultra Marathon |
4:10:15 h | 178 |
| 2023 | ||||
| 11.06 | 87km | 96th Comrades Marathon - Down Run |
8:34:24 h | 2227 |
| 06.05 | 50km | 34th Loskop Ultra Marathon 50km |
3:57:13 h | 118 |
| 2020 | ||||
| 14.03 | 50km | 30th Om Die Dam 50km |
3:57:27 h | 99 |
| 2019 | ||||
| 09.06 | 87km | 94th Comrades Marathon - Up Run |
7:57:15 h | 980 |
| 2018 | ||||
| 18.08 | 12h | 7th Hout Is Goud Daybreaker Run |
84.000 km | 3 🥉 |
| 10.06 | 90km | 93rd Comrades Marathon - Down Run |
7:51:07 h | 888 |
| 2017 | ||||
| 04.06 | 87km | 92nd Comrades Marathon - Up Run |
9:48:49 h | 3978 |
| 1999 | ||||
| 16.06 | 89km | 74th Comrades Marathon - Down Run |
7:08:26 h | 399 |
| 1995 | ||||
| 20.05 | 89km | 70th Comrades Marathon - Down Run |
6:41:08 h | 144 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/6/2025 | 98th Comrades Marathon - Down Run | 90,00 | ×3 |
| ✓ 2 | 10/6/2018 | 93rd Comrades Marathon - Down Run | 90,00 | ×3 |
| ✓ 3 | 16/6/1999 | 74th Comrades Marathon - Down Run | 89,00 | ×3 |
| ✓ 4 | 20/5/1995 | 70th Comrades Marathon - Down Run | 89,00 | ×3 |
| ✓ 5 | 9/6/2024 | 97th Comrades Marathon - Up Run | 87,00 | ×3 |
| ✓ 6 | 11/6/2023 | 96th Comrades Marathon - Down Run | 87,00 | ×3 |
| ✓ 7 | 9/6/2019 | 94th Comrades Marathon - Up Run | 87,00 | ×3 |
| ✓ 8 | 4/6/2017 | 92nd Comrades Marathon - Up Run | 87,00 | ×3 |
| ✓ 9 | 18/8/2018 | 7th Hout Is Goud Daybreaker Run | 84,00 | ×2 |
| ✓ 10 | 25/4/2026 | 37th Loskop Ultra Marathon 50km | 50,00 | ×1 |
| ✓ 11 | 26/4/2025 | 36th Loskop Ultra Marathon 50km | 50,00 | ×1 |
| ✓ 12 | 20/4/2024 | 35th Loskop Ultra Marathon 50km | 50,00 | ×1 |
| ✓ 13 | 31/3/2024 | City2City Ultra Marathon | 50,00 | ×1 |
| ✓ 14 | 6/5/2023 | 34th Loskop Ultra Marathon 50km | 50,00 | ×1 |
| ✓ 15 | 14/3/2020 | 30th Om Die Dam 50km | 50,00 | ×1 |