John Tyszkiewicz
External sources
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Born : 1961
Cat. M65 Ultrarunner since 2000
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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
6
Countries visited ?
BelgiumUnited Kingdom
Greece
Italy
Morocco
Switzerland
BelgiumUnited KingdomGreeceItalyMoroccoSwitzerland54,8%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 699; Σ finishers = 3 103. 1 699 / 3 103 × 100 = 54.75%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races1 087 km
> 100 km3
> 160 km3
> 200 km3
Longest race245,3 km
23. Spartathlon — 30/9/2005
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road26,5%
Trail53,2%
Stage20,2%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2009 | ||||
| 12.06 | 100km | 51. 100 km Lauf Biel |
12:57:41 h | 747 |
| 2008 | ||||
| 31.05 | 100km | 36^ 100 km del Passatore, Firenze-Faenza |
12:23:40 h | 386 |
| 2005 | ||||
| 30.09 | 245.3km | 23. Spartathlon |
34:55:03 h | 75 |
| 17.06 | 100km | 26. Nacht van Vlaanderen, 100km Torhout |
11:28:29 h | 36 |
| 2004 | ||||
| 29.05 | 145mi | 10th Grand Union Canal 145 mile Race |
37:46:00 h | 8 |
| 2001 | ||||
| 07.10 | 88.5km | 51st London to Brighton Road Race |
9:31:56 h | 75 |
| 2000 | ||||
| 04.04 | 220km/6stages | 15. Marathon des Sables |
46:56:11 h | 379 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/9/2005 | 23. Spartathlon | 245,30 | ×7 |
| ✓ 2 | 29/5/2004 | 10th Grand Union Canal 145 mile Race | 233,35 | ×7 |
| ✓ 3 | 4/4/2000 | 15. Marathon des Sables | 220,00 | ×7 |
| ✓ 4 | 12/6/2009 | 51. 100 km Lauf Biel | 100,00 | ×3 |
| ✓ 5 | 31/5/2008 | 36^ 100 km del Passatore, Firenze-Faenza | 100,00 | ×3 |
| ✓ 6 | 17/6/2005 | 26. Nacht van Vlaanderen, 100km Torhout | 100,00 | ×3 |
| ✓ 7 | 7/10/2001 | 51st London to Brighton Road Race | 88,50 | ×2 |