Barry Norback
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Born : 1941
Cat. M85 Ultrarunner since 1988
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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 States63,1%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 974; Σ finishers = 1 544. 974 / 1 544 × 100 = 63.08%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races571 km
Longest race84,3 km
6th Sierra Nevada Endurance 52 Mile Run — 24/10/1992
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road14,1%
Trail85,9%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 1997 | ||||
| 15.03 | 50km | 8th Way Too Cool 50K Endurance Run |
6:42:04 h | 324 |
| 1993 | ||||
| 13.03 | 50km | 4th Way Too Cool 50K Endurance Run |
6:08:31 h | 194 |
| 1992 | ||||
| 24.10 | 52.4mi | 6th Sierra Nevada Endurance 52 Mile Run |
10:55:38 h | 51 |
| 10.10 | 50mi | 10th Dick Collins Firetrails 50 Mile |
10:38:52 h | 31 |
| 14.03 | 50km | 3rd Way Too Cool 50K Endurance Run |
5:29:20 h | 123 |
| 1991 | ||||
| 11.10 | 50mi | 9th Dick Collins Firetrails 50 Mile |
10:31:28 h | 48 |
| 09.02 | 50mi | 13th Jed Smith Ultra Classic - 50 Mile Race |
9:06:45 h | 89 |
| 1989 | ||||
| 16.09 | 50km | Pacific Crest Trail 50 km |
6:53:43 h | 75 |
| 1988 | ||||
| 26.11 | 28mi | 4th Quad Dipsea Trail Run |
6:22:59 h | 48 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/10/1992 | 6th Sierra Nevada Endurance 52 Mile Run | 84,33 | ×3 |
| ✓ 2 | 10/10/1992 | 10th Dick Collins Firetrails 50 Mile | 80,47 | ×3 |
| ✓ 3 | 11/10/1991 | 9th Dick Collins Firetrails 50 Mile | 80,47 | ×3 |
| ✓ 4 | 9/2/1991 | 13th Jed Smith Ultra Classic - 50 Mile Race | 80,47 | ×3 |
| ✓ 5 | 15/3/1997 | 8th Way Too Cool 50K Endurance Run | 50,00 | ×2 |
| ✓ 6 | 13/3/1993 | 4th Way Too Cool 50K Endurance Run | 50,00 | ×2 |
| ✓ 7 | 14/3/1992 | 3rd Way Too Cool 50K Endurance Run | 50,00 | ×2 |
| ✓ 8 | 16/9/1989 | Pacific Crest Trail 50 km | 50,00 | ×2 |
| ✓ 9 | 26/11/1988 | 4th Quad Dipsea Trail Run | 45,06 | ×2 |