James (Jim) Czachor
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Born : 1947
Cat. M75 Ultrarunner since 1976
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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 States16,1%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 116; Σ finishers = 722. 116 / 722 × 100 = 16.07%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 511 km
> 100 km3
> 160 km3
> 24h3
Longest race195,0 km
4th Olander Park 24 Hour Run — 17/9/1994
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win7
🏆 Win M7
🏅 Top 38
🏅 Top 3 M8
Longest winning streak5
Current streak0
HISTORY
16 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2002 | ||||
| 17.02 | 50km | 10th Kurt Steiner 50K |
4:36:00 h | 22 |
| 2001 | ||||
| 18.02 | 50km | 9th Kurt Steiner 50K |
4:49:15 h | 25 |
| 1996 | ||||
| 10.03 | 60km | 17th NYRR Knickerbocker 60K |
5:18:41 h | 16 |
| 1994 | ||||
| 17.09 | 24h | 4th Olander Park 24 Hour Run |
195.011 km | 12 |
| 1993 | ||||
| 18.09 | 24h | 3rd Olander Park 24 Hour Run |
190.639 km | 14 |
| 1992 | ||||
| 30.12 | 24h | USA/TAC 24 Hour Championship |
166.357 km | 17 |
| 1985 | ||||
| 28.04 | 50mi | 12th Lake Waramaug 50mi Ultra Marathon |
7:04:30 h | 13 |
| 1984 | ||||
| 03.08 | 50mi | DC Road Runners 50 Mile |
5:54:42 h | 1 🏆 |
| 1982 | ||||
| 25.04 | 100km | SPA-TAC 100 km Championships |
7:51:17 h | 1 🏆 |
| 27.02 | 50mi | 2nd Las Vegas Track Club 50 Mile |
5:51:47 h | 1 🏆 |
| 1980 | ||||
| 16.03 | 50mi | Santa Monica Mountains Relays - Make-up run |
6:30:38 h | 1 🏆 |
| 17.02 | 53mi | Santa Monica Mountains Relays |
6:15:00 h | 1 🏆 |
| 1977 | ||||
| 03.12 | 50km | National AAU 50 km Championchips |
3:07:52 h | 4 |
| 10.09 | 50mi | Striders Santa Monica Track 50 mi - AAU 50 mi Track Championchips |
5:26:54 h | 1 🏆 |
| 06.08 | 50mi | DC Road Runners 50 Mile |
5:44:30 h | 1 🏆 |
| 1976 | ||||
| 14.08 | 50mi | 50 mi Queens |
6:24:00 h | 2 🥈 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/9/1994 | 4th Olander Park 24 Hour Run | 195,01 | ×5 |
| ✓ 2 | 18/9/1993 | 3rd Olander Park 24 Hour Run | 190,64 | ×5 |
| ✓ 3 | 30/12/1992 | USA/TAC 24 Hour Championship | 166,36 | ×4 |
| ✓ 4 | 25/4/1982 | SPA-TAC 100 km Championships | 100,00 | ×2 |
| ✓ 5 | 17/2/1980 | Santa Monica Mountains Relays | 85,30 | ×2 |
| ✓ 6 | 28/4/1985 | 12th Lake Waramaug 50mi Ultra Marathon | 80,47 | ×2 |
| ✓ 7 | 3/8/1984 | DC Road Runners 50 Mile | 80,47 | ×2 |
| ✓ 8 | 27/2/1982 | 2nd Las Vegas Track Club 50 Mile | 80,47 | ×2 |
| ✓ 9 | 16/3/1980 | Santa Monica Mountains Relays - Make-up run | 80,47 | ×2 |
| ✓ 10 | 10/9/1977 | Striders Santa Monica Track 50 mi - AAU 50 mi Track Championchips | 80,47 | ×2 |
| ✓ 11 | 6/8/1977 | DC Road Runners 50 Mile | 80,47 | ×2 |
| ✓ 12 | 14/8/1976 | 50 mi Queens | 80,47 | ×2 |
| ✓ 13 | 10/3/1996 | 17th NYRR Knickerbocker 60K | 60,00 | ×1 |
| ✓ 14 | 17/2/2002 | 10th Kurt Steiner 50K | 50,00 | ×1 |
| ✓ 15 | 18/2/2001 | 9th Kurt Steiner 50K | 50,00 | ×1 |
| ✓ 16 | 3/12/1977 | National AAU 50 km Championchips | 50,00 | ×1 |