Calvin Dirks
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Born : 1972
Cat. M50 Ultrarunner since 2009
5
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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 Africa82,0%
Rank quotient ?This runner's calculation uses 5 eligible race(s): Σ(rank − 1) = 13 257; Σ finishers = 16 175. 13 257 / 16 175 × 100 = 81.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed5
Km — ultra races433 km
> 100 km1
> 160 km1
Longest race160,9 km
Cape Town 100 Miler — 25/9/2010
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
5 race(s) · 2 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2014 | ||||
| 18.04 | 56km road race | 45th Two Oceans Marathon |
6:41:54 h | 6855 |
| 18.04 | 50km | 45th Two Oceans Marathon - 50km Split | 5:56:30 h | 6770 |
| 2012 | ||||
| 07.04 | 56km road race | 43rd Two Oceans Marathon |
6:32:10 h | 6220 |
| 07.04 | 50km road race | 43rd Two Oceans Marathon - 50km Split (RSA) | 5:52:07 h | 6449 |
| 2010 | ||||
| 25.09 | 100mi | Cape Town 100 Miler |
25:51:59 h | 16 |
| 11.09 | 80km | 40th Laingsburg Karoo Ultra-Marathon |
10:39:24 h | 100 |
| 2009 | ||||
| 12.09 | 80km | 39th Laingsburg Karoo Ultra-Marathon |
9:58:53 h | 71 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/9/2010 | Cape Town 100 Miler | 160,93 | ×8 |
| ✓ 2 | 11/9/2010 | 40th Laingsburg Karoo Ultra-Marathon | 80,00 | ×4 |
| ✓ 3 | 12/9/2009 | 39th Laingsburg Karoo Ultra-Marathon | 80,00 | ×4 |
| ✓ 4 | 18/4/2014 | 45th Two Oceans Marathon (RSA) | 56,00 | ×2 |
| ✓ 5 | 7/4/2012 | 43rd Two Oceans Marathon (RSA) | 56,00 | ×2 |