Matthew Castro
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Born : 1990
Cat. M35 Ultrarunner since 2022
10
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 ?United States
United States51,0%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 891; Σ finishers = 1 748. 891 / 1 748 × 100 = 50.97%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races644 km
Longest race98,9 km
12th Gorge Waterfalls 100k — 11/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road13,1%
Trail86,9%
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 11.04 | 98.9km | 12th Gorge Waterfalls 100k |
15:59:52 h | 239 |
| 2025 | ||||
| 10.05 | 50km | 5th Tiger Claw |
7:22:56 h | 48 |
| 21.03 | 50mi | 15th Badger Mountain 50 Mile Challenge |
10:29:54 h | 29 |
| 2024 | ||||
| 08.06 | 12h | 1st Lake Tye Challenge - 12h |
84.490 km | 11 |
| 10.05 | 50km | 4th Tiger Claw |
8:07:16 h | 55 |
| 16.03 | 50km | 30th Chuckanut 50K |
6:00:52 h | 268 |
| 24.02 | 50km | 1st The Big Alta |
7:15:25 h | 132 |
| 2023 | ||||
| 13.05 | 50km | 3rd Tiger Claw |
8:20:00 h | 67 |
| 24.03 | 50mi | 13th Badger Mountain 50 Mile Challenge |
10:38:52 h | 36 |
| 2022 | ||||
| 23.04 | 50km | 12th Squak Mountain 50 km Trail Run |
7:40:48 h | 16 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/4/2026 | 12th Gorge Waterfalls 100k | 98,90 | ×4 |
| ✓ 2 | 8/6/2024 | 1st Lake Tye Challenge - 12h | 84,49 | ×3 |
| ✓ 3 | 21/3/2025 | 15th Badger Mountain 50 Mile Challenge | 80,47 | ×3 |
| ✓ 4 | 24/3/2023 | 13th Badger Mountain 50 Mile Challenge | 80,47 | ×3 |
| ✓ 5 | 10/5/2025 | 5th Tiger Claw | 50,00 | ×2 |
| ✓ 6 | 10/5/2024 | 4th Tiger Claw | 50,00 | ×2 |
| ✓ 7 | 16/3/2024 | 30th Chuckanut 50K | 50,00 | ×2 |
| ✓ 8 | 24/2/2024 | 1st The Big Alta | 50,00 | ×2 |
| ✓ 9 | 13/5/2023 | 3rd Tiger Claw | 50,00 | ×2 |
| ✓ 10 | 23/4/2022 | 12th Squak Mountain 50 km Trail Run | 50,00 | ×2 |