Kit-Fu (Jeff) (鄭傑夫) Cheng
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 : 1987
Cat. M35 Ultrarunner since 2014
10
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 ?Hong Kong
Hong Kong30,9%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 4 455; Σ finishers = 14 407. 4 455 / 14 407 × 100 = 30.92%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races832 km
Longest race100,0 km
2nd Rebel Walker 100 — 16/3/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 14.12 | 56.1km | 9th The North Face 50 Hong Kong |
10:41:31 h | 316 |
| 13.01 | 50km | 31th Green Power Hike |
7:25:01 h | 36 |
| 2023 | ||||
| 09.12 | 50km | 8th The North Face 50 Hong Kong |
10:48:50 h | 349 |
| 2019 | ||||
| 16.03 | 100km | 2nd Rebel Walker 100 |
20:03:07 h | 194 |
| 2018 | ||||
| 15.12 | 100km | 6th The North Face 100 Hong Kong |
23:26:24 h | 224 |
| 16.11 | 100km | 37th Oxfam Trailwalker Hong Kong |
23:28:45 h | 756 |
| 13.10 | 76.1km | 7th Raleigh Challenge Wilson Trail - Whole Course |
17:08:37 h | 39 |
| 24.03 | 100km | 1st Rebel Walker 100 |
19:36:50 h | 166 |
| 2015 | ||||
| 17.01 | 100km | 5th Hong Kong 100 Ultra Trail Race |
20:39:39 h | 607 |
| 2014 | ||||
| 14.11 | 100km | 33th Oxfam Trailwalker Hong Kong |
28:52:09 h | 1778 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/3/2019 | 2nd Rebel Walker 100 | 100,00 | ×4 |
| ✓ 2 | 15/12/2018 | 6th The North Face 100 Hong Kong | 100,00 | ×4 |
| ✓ 3 | 16/11/2018 | 37th Oxfam Trailwalker Hong Kong | 100,00 | ×4 |
| ✓ 4 | 24/3/2018 | 1st Rebel Walker 100 | 100,00 | ×4 |
| ✓ 5 | 17/1/2015 | 5th Hong Kong 100 Ultra Trail Race | 100,00 | ×4 |
| ✓ 6 | 14/11/2014 | 33th Oxfam Trailwalker Hong Kong | 100,00 | ×4 |
| ✓ 7 | 13/10/2018 | 7th Raleigh Challenge Wilson Trail - Whole Course | 76,10 | ×3 |
| ✓ 8 | 14/12/2024 | 9th The North Face 50 Hong Kong | 56,10 | ×2 |
| ✓ 9 | 13/1/2024 | 31th Green Power Hike | 50,00 | ×2 |
| ✓ 10 | 9/12/2023 | 8th The North Face 50 Hong Kong | 50,00 | ×2 |