← rankings
Callum Zorn-singh
Clapham Chasers · Clapham Chasers RC
#27246
#16057 men
Overall rank
-2.62
Rating
11
Races rated
11
Results
#23785
#14973 men
Cross-country rank
Personal bests
| Event | Best | National rank | All-time |
|---|---|---|---|
| Marathon | 02:51:18 | #2068 of 21073 (2024) | #4040 of 43093 |
National rank by time among athletes collected so far, in that event & year.
Form over time
Season-by-season ability from the time-varying model. Higher is stronger.
Race history
| Date | Race | Club | Time | Place |
|---|---|---|---|---|
| 2025 | ||||
| 2025-02-22 | English National Cross Country Championships — English National Cross Country Championships↗ | Clapham Chasers | — | 516 |
| 2024 | ||||
| 2024-11-09 | Surrey XC League — Match 2B↗ | Clapham Chasers | — | 32 |
| 2024-02-10 | Surrey XC League — 2023-24 Men Div 1 Match 4↗ | Clapham Chasers | — | 116 |
| 2024-01-13 | Surrey XC League — 2023-24 Men Div 1 Match 3↗ | Clapham Chasers | — | 178 |
| 2024 | London Marathon↗ | — | 02:51:18 | 1069 |
| 2023 | ||||
| 2023-10-14 | Surrey XC League — 2023-24 Men Div 1 Match 1↗ | Clapham Chasers | — | 137 |
| 2023-02-11 | Surrey XC League — 2022-23 Men Div 2 Match 4↗ | Clapham Chasers | — | 46 |
| 2022 | ||||
| 2022-11-12 | Surrey XC League — 2022-23 Men Div 2 Match 2↗ | Clapham Chasers | — | 67 |
| 2022-02-26 | English National Cross Country Championships — National XC Championships↗ | Clapham Chasers | — | 993 |
| 2021 | ||||
| 2021-11-20 | SEAA South of England AA Champs incl. London / National XC — LYG/SEAA XC↗ | Clapham Chasers RC | — | 164 |
| 2021-10-16 | Surrey XC League — 2021-22 Men Div 2 Match 1↗ | Clapham Chasers | — | 74 |
Ratings are head-to-head (Bradley–Terry) over finishing places across cross-country, track and road. Times are ranked nationally per event. Identity is resolved across clubs and disciplines; results shown are those collected so far.