Jackson Walsh
External sources
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Ultrarunner since 2025
3
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
16
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 ?Australia
Australia63,0%
Rank quotient ?This runner's calculation uses 3 eligible race(s): Σ(rank − 1) = 388; Σ finishers = 616. 388 / 616 × 100 = 62.99%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed3
Km — ultra races268 km
> 100 km1
> 24h3
> 48h3
Longest race107,3 km
Red's Backyard Ultra — 1/8/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Elim.100,0%
Records
HISTORY
3 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 01.08 | Backyard Ultra | Red's Backyard Ultra |
107.296 km (16h) | 76 |
| 2025 | ||||
| 25.10 | Backyard Ultra | Red's Backyard Ultra |
80.472 km (12h) | 83 |
| 20.09 | Backyard Ultra | 4th Sydney's Backyard Ultra |
80.472 km (12h) | 232 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 1/8/2026 | Red's Backyard Ultra | 107,30 | ×6 |
| ✓ 2 | 25/10/2025 | Red's Backyard Ultra | 80,47 | ×5 |
| ✓ 3 | 20/9/2025 | 4th Sydney's Backyard Ultra | 80,47 | ×5 |