Brian Byrne
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13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
2
Countries visited ?
United Kingdom
Ireland
79,8%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 681; Σ finishers = 853. 681 / 853 × 100 = 79.84%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 097 km
> 100 km2
> 160 km1
> 24h2
Longest race161,5 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road95,3%
Trail4,7%
HISTORY
13 race(s) · 2 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2017 | ||||
| 25.03 | 51km | 8:31:49 h | 195 | |
| 2016 | ||||
| 11.06 | 50km | 6:36:21 h | 75 | |
| 2015 | ||||
| 13.06 | 50km | 5:50:50 h | 95 | |
| 2014 | ||||
| 19.07 | 36mi | 7:50:15 h | 56 | |
| 14.06 | 50km | 5:53:37 h | 84 | |
| 2013 | ||||
| 15.06 | 100km | 12:16:38 h | 21 | |
| 15.06 | 50km | Portumna 100km Ultramarathon - 50km Split | 5:44:17 h | 25 |
| 2004 | ||||
| 26.04 | 100km | 10:48:58 h | 21 | |
| 23.03 | 63.3km | 6:33:59 h | 29 | |
| 2002 | ||||
| 01.09 | 100km | 10:26:23 h | 19 | |
| 1999 | ||||
| 09.10 | 24h | 161.543 km | 16 | |
| 1998 | ||||
| 10.10 | 24h | 112.800 km | 30 | |
| 10.05 | 100km | 9:44:06 h | 29 | |
| 1997 | ||||
| 20.07 | 100km | 10:22:06 h | 24 | |
| 20.07 | 50km | Edinburgh Self Transcendence 100km - 50km Split | 4:48:41 h | 33 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/10/1999 | 12th Self-Transcendence 24 Hour Track Race Tooting Bec | 161,54 | ×5 |
| ✓ 2 | 10/10/1998 | 11th Self-Transcendence 24 Hour Track Race Tooting Bec | 112,80 | ×3 |
| ✓ 3 | 15/6/2013 | Portumna 100km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 26/4/2004 | 100 km Cardiff | 100,00 | ×3 |
| ✓ 5 | 1/9/2002 | 100 km Cardiff | 100,00 | ×3 |
| ✓ 6 | 10/5/1998 | 100 km Greenwich | 100,00 | ×3 |
| ✓ 7 | 20/7/1997 | Edinburgh Self Transcendence 100km | 100,00 | ×3 |
| ✓ 8 | 23/3/2004 | 1st Connemara Int. Ultramarathon | 63,30 | ×2 |
| ✓ 9 | 19/7/2014 | 2nd Waterfront Ultra Marathon | 57,94 | ×1 |
| ✓ 10 | 25/3/2017 | Maurice Mullins Ultra | 51,00 | ×1 |
| ✓ 11 | 11/6/2016 | Portumna 50km Ultramarathon | 50,00 | ×1 |
| ✓ 12 | 13/6/2015 | Portumna 50km Ultramarathon | 50,00 | ×1 |
| ✓ 13 | 14/6/2014 | Portumna 50km Ultramarathon | 50,00 | ×1 |