Govia Thameslink Railway 871A12
View line Govia Thameslink Railway
Alerts for train 871A12
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Govia Thameslink Railway.
The mini-map returns when the train runs
On-time · 30 days
57%
16/28 runs under 3 min
RT coverage: 28 full · 0 partial · 0 no data
On-time · 90 days
74%
65/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +2 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +13 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Tue 27 Oct Max en route +48 min · last fix heading to Clapham Jn. C.S. +47 min
- Mon 26 Oct Max en route +46 min · last fix heading to Aldershot +46 min
- Sun 23 Aug Max en route +50 min · last fix heading to Brighton +46 min
- Thu 29 Oct Max en route +13 min · last fix heading to Clapham Jn. C.S. +13 min
- Tue 20 Oct Max en route +13 min · last fix heading to Clapham Jn. C.S. +13 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 13% · 11
- On time 61% · 54
- 3–10 min 19% · 17
- 10–30 min 3% · 3
- 30+ min 3% · 3
On-time by weekday
- 77% M n=13
- 62% T n=13
- 92% W n=13
- 77% T n=13
- 85% F n=13
- 83% S n=12
- 36% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | Brighton 09:54 | 0 min | +2 min |
| Fri 6 Nov | Clapham Jn. C.S. 06:54 | −1 min | — |
| Thu 5 Nov | Clapham Jn. C.S. 06:58 | +2 min | +3 min |
| Wed 4 Nov | Wimbledon 06:54 | −2 min | +2 min |
| Tue 3 Nov | Clapham Jn. C.S. 06:59 | +3 min | +3 min |
| Mon 2 Nov | Clapham Jn. C.S. 06:54 | −1 min | +2 min |
| Sun 1 Nov | Brighton 11:31 | +6 min | +7 min |
| Fri 30 Oct | Clapham Jn. C.S. 07:04 | 0 min | +2 min |
| Thu 29 Oct | Clapham Jn. C.S. 07:18 | +13 min | +13 min |
| Wed 28 Oct | Clapham Jn. C.S. 07:15 | +10 min | +10 min |
| Tue 27 Oct | Clapham Jn. C.S. 14:33 | +47 min | +48 min |
| Mon 26 Oct | Aldershot 07:50 | +46 min | +46 min |
| Sun 25 Oct | Preston Park 11:14 | 0 min | +1 min |
| Sat 24 Oct | Clapham Jn. C.S. 07:09 | −1 min | +1 min |
| Fri 23 Oct | Wimbledon 07:08 | +3 min | +4 min |
| Thu 22 Oct | Wimbledon 07:07 | +3 min | +3 min |
| Wed 21 Oct | Wimbledon 07:06 | +2 min | +2 min |
| Tue 20 Oct | Clapham Jn. C.S. 07:17 | +13 min | +13 min |
| Mon 19 Oct | Clapham Jn. C.S. 07:06 | +2 min | +2 min |
| Sun 18 Oct | Preston Park 11:13 | 0 min | +1 min |
| Sat 17 Oct | Wimbledon 07:14 | +3 min | +3 min |
| Fri 16 Oct | Clapham Jn. C.S. 07:05 | +1 min | +1 min |
| Thu 15 Oct | Clapham Jn. C.S. 07:06 | +1 min | +2 min |
| Wed 14 Oct | Clapham Jn. C.S. 07:04 | −1 min | +1 min |
| Tue 13 Oct | Clapham Jn. C.S. 07:08 | +4 min | +4 min |
| Mon 12 Oct | Clapham Jn. C.S. 07:07 | +3 min | +3 min |
| Sat 10 Oct | Clapham Jn. C.S. 07:11 | +1 min | +2 min |
| Fri 9 Oct | Clapham Jn. C.S. 07:05 | +1 min | +1 min |
| Thu 8 Oct | Clapham Jn. C.S. 07:04 | 0 min | +1 min |
| Wed 7 Oct | Clapham Jn. C.S. 07:03 | −1 min | — |
Each run is closed into train_runs (country, train number, service day) from the live positions. Final delay = last delay seen. Partial coverage: the feed stopped before the final stop (last value used, hatched in the chart). No data: a run without any valid delay; counts as neither on time nor late. Data collected since 11 July 2026.