Stephen Machale
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Ultrarunner since 2023
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
Australia21,3%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 452; Σ finishers = 2 120. 452 / 2 120 × 100 = 21.32%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races888 km
> 100 km5
> 160 km2
> 200 km1
> 24h6
> 48h6
Longest race214,6 km
Dead Cow Gully Backyard Ultra — 30/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail5,6%
Elim.94,4%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 01.08 | Backyard Ultra | Red's Backyard Ultra |
140.826 km (21h) | 56 |
| 30.05 | Backyard Ultra | Dead Cow Gully Backyard Ultra |
214.592 km (32h) | 14 |
| 18.04 | Backyard Ultra | 5th Sydney's Backyard Ultra |
134.120 km (20h) | 120 |
| 2025 | ||||
| 20.09 | Backyard Ultra | 4th Sydney's Backyard Ultra |
167.650 km (25h) | 26 |
| 12.04 | Backyard Ultra | 3rd Sydney's Backyard Ultra |
100.590 km (15h) | 119 |
| 2024 | ||||
| 05.10 | Backyard Ultra | 2nd Sydney's Backyard Ultra |
80.472 km (12h) | 112 |
| 2023 | ||||
| 18.11 | 50km | 10th Stromlo Lightning Strike 50km |
4:38:06 h | 12 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/5/2026 | Dead Cow Gully Backyard Ultra | 214,59 | ×7 |
| ✓ 2 | 20/9/2025 | 4th Sydney's Backyard Ultra | 167,65 | ×6 |
| ✓ 3 | 1/8/2026 | Red's Backyard Ultra | 140,83 | ×5 |
| ✓ 4 | 18/4/2026 | 5th Sydney's Backyard Ultra | 134,12 | ×4 |
| ✓ 5 | 12/4/2025 | 3rd Sydney's Backyard Ultra | 100,59 | ×3 |
| ✓ 6 | 5/10/2024 | 2nd Sydney's Backyard Ultra | 80,47 | ×2 |
| ✓ 7 | 18/11/2023 | 10th Stromlo Lightning Strike 50km | 50,00 | ×1 |