Eric Zhang
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 1978
Cat. M45 Ultrarunner since 2018
8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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 States34,1%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 246; Σ finishers = 722. 246 / 722 × 100 = 34.07%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races752 km
> 100 km2
> 160 km2
Longest race160,9 km
6th Best of San Diego 100 Miler — 19/11/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2022 | ||||
| 19.11 | 100mi | 6th Best of San Diego 100 Miler |
21:22:28 h | 2 🥈 |
| 06.08 | 100mi | 34rd Angeles Crest 100 Mile |
30:30:18 h | 48 |
| 2021 | ||||
| 23.10 | 100km | 8th Sean O'Brien 100 km Trail Race |
14:18:01 h | 14 |
| 2019 | ||||
| 09.11 | 50km | 9th Chino Hills 50K Race |
5:49:55 h | 15 |
| 05.10 | 100km | 8th Cuyamaca 100 km Endurance Run |
15:16:43 h | 76 |
| 17.08 | 50mi | 9th Kodiak 50 Mile Ultramarathon |
13:08:36 h | 31 |
| 2018 | ||||
| 10.11 | 50km | 8th Chino Hills 50K Race |
5:45:23 h | 32 |
| 07.07 | 50km | 13th Angeles National Forest 50k Trail Race |
7:51:06 h | 36 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/11/2022 | 6th Best of San Diego 100 Miler | 160,93 | ×6 |
| ✓ 2 | 6/8/2022 | 34rd Angeles Crest 100 Mile | 160,93 | ×6 |
| ✓ 3 | 23/10/2021 | 8th Sean O'Brien 100 km Trail Race | 100,00 | ×4 |
| ✓ 4 | 5/10/2019 | 8th Cuyamaca 100 km Endurance Run | 100,00 | ×4 |
| ✓ 5 | 17/8/2019 | 9th Kodiak 50 Mile Ultramarathon | 80,47 | ×3 |
| ✓ 6 | 9/11/2019 | 9th Chino Hills 50K Race | 50,00 | ×2 |
| ✓ 7 | 10/11/2018 | 8th Chino Hills 50K Race | 50,00 | ×2 |
| ✓ 8 | 7/7/2018 | 13th Angeles National Forest 50k Trail Race | 50,00 | ×2 |