Govia Thameslink Railway 871R31
View line Govia Thameslink Railway
Alerts for train 871R31
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
84%
21/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
87%
65/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +4 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
- Thu 20 Aug Max en route +11 min · last fix heading to 87230 +10 min
- Wed 23 Sept Max en route +11 min · last fix heading to 87230 +7 min
- Sat 26 Sept Max en route +7 min · last fix heading to 87230 +6 min
- Fri 23 Oct Max en route +8 min · last fix heading to East Croydon +5 min
- Tue 1 Sept Max en route +7 min · last fix heading to 87230 +5 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 16% · 12
- On time 71% · 53
- 3–10 min 12% · 9
- 10–30 min 1% · 1
- 30+ min 0% · 0
On-time by weekday
- 92% M n=12
- 75% T n=12
- 85% W n=13
- 92% T n=12
- 92% F n=13
- 85% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 4 Nov | Clapham Jn. C.S. 14:23 | +4 min | +5 min |
| Tue 3 Nov | Clapham Jn. C.S. 14:18 | −1 min | +2 min |
| Mon 2 Nov | Clapham Jn. C.S. 14:18 | 0 min | +2 min |
| Sat 31 Oct | East Croydon 14:29 | +2 min | +4 min |
| Fri 30 Oct | Clapham Jn. C.S. 14:26 | −1 min | +1 min |
| Thu 29 Oct | South Croydon 14:27 | +1 min | +3 min |
| Wed 28 Oct | Clapham Jn. C.S. 14:26 | −1 min | +1 min |
| Tue 27 Oct | South Croydon 14:30 | +3 min | +5 min |
| Mon 26 Oct | East Croydon 14:29 | +2 min | +3 min |
| Sat 24 Oct | South Croydon 14:24 | −3 min | — |
| Fri 23 Oct | East Croydon 14:32 | +5 min | +8 min |
| Thu 22 Oct | Clapham Jn. C.S. 14:26 | −1 min | +2 min |
| Wed 21 Oct | Clapham Jn. C.S. 14:27 | 0 min | +2 min |
| Tue 20 Oct | Clapham Jn. C.S. 14:27 | 0 min | +1 min |
| Mon 19 Oct | Clapham Jn. C.S. 14:28 | +1 min | +3 min |
| Sat 17 Oct | Redhill 13:44 | −1 min | — |
| Fri 16 Oct | Clapham Jn. C.S. 14:26 | −1 min | +1 min |
| Thu 15 Oct | Clapham Jn. C.S. 14:26 | −1 min | +2 min |
| Wed 14 Oct | Clapham Jn. C.S. 14:28 | +1 min | +4 min |
| Mon 12 Oct | Clapham Jn. C.S. 14:31 | +4 min | +4 min |
| Sat 10 Oct | Clapham Jn. C.S. 14:27 | 0 min | +2 min |
| Fri 9 Oct | Clapham Jn. C.S. 14:25 | −1 min | +2 min |
| Thu 8 Oct | Clapham Jn. C.S. 14:26 | −1 min | — |
| Wed 7 Oct | Clapham Jn. C.S. 14:25 | −2 min | +1 min |
| Tue 6 Oct | Clapham Jn. C.S. 14:27 | 0 min | +2 min |
| Mon 5 Oct | Clapham Jn. C.S. 14:25 | −2 min | +1 min |
| Sat 3 Oct | 87230 14:29 | +3 min | +4 min |
| Fri 2 Oct | 87230 14:26 | −1 min | +2 min |
| Thu 1 Oct | 87230 14:25 | −2 min | +1 min |
| Wed 30 Sept | 87230 14:26 | −1 min | +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.