Govia Thameslink Railway 871L51
View line Govia Thameslink Railway
Alerts for train 871L51
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
52%
15/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
44%
39/89 runs under 3 min
RT coverage: 89 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +2 min
P90
+16min
9 in 10 runs arrive with less than this
30 days: +10 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
- Sun 16 Aug Max en route +65 min · last fix heading to 87230 +65 min
- Mon 17 Aug Max en route +36 min · last fix heading to 87230 +34 min
- Wed 29 Jul Max en route +26 min · last fix heading to 82206 +26 min
- Thu 30 Jul Max en route +26 min · last fix heading to 82206 +22 min
- Fri 7 Aug Max en route +25 min · last fix heading to 82206 +21 min
Distribution · 90 days
89 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 43% · 38
- 3–10 min 43% · 38
- 10–30 min 11% · 10
- 30+ min 2% · 2
On-time by weekday
- 62% M n=13
- 8% T n=12
- 54% W n=13
- 31% T n=13
- 31% F n=13
- 54% S n=13
- 67% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | Grateley 18:43 | +2 min | +6 min |
| Sun 11 Oct | Clapham Jn. C.S. 18:56 | +8 min | +8 min |
| Sat 10 Oct | Clapham Jn. C.S. 18:46 | +6 min | +6 min |
| Fri 9 Oct | Grateley 18:49 | +9 min | +9 min |
| Thu 8 Oct | Clapham Jn. C.S. 18:43 | +3 min | +4 min |
| Wed 7 Oct | South Croydon 18:42 | +1 min | +5 min |
| Tue 6 Oct | South Croydon 18:43 | +3 min | +4 min |
| Mon 5 Oct | East Croydon 18:38 | +2 min | +6 min |
| Sun 4 Oct | 87230 18:48 | 0 min | +1 min |
| Sat 3 Oct | 86162 18:44 | +16 min | +20 min |
| Fri 2 Oct | 87230 18:47 | +7 min | +10 min |
| Thu 1 Oct | 87230 18:41 | +1 min | +4 min |
| Wed 30 Sept | 87230 18:41 | +1 min | +9 min |
| Tue 29 Sept | 87230 18:59 | +19 min | +19 min |
| Mon 28 Sept | 87230 18:43 | +3 min | +3 min |
| Sat 26 Sept | 87230 18:42 | +1 min | +4 min |
| Fri 25 Sept | 87230 18:47 | +7 min | +8 min |
| Thu 24 Sept | 87230 18:42 | +2 min | +3 min |
| Wed 23 Sept | 87230 18:42 | +2 min | +3 min |
| Tue 22 Sept | 87230 18:43 | +3 min | +4 min |
| Mon 21 Sept | 87230 18:41 | 0 min | +4 min |
| Sun 20 Sept | 87230 18:47 | 0 min | +2 min |
| Sat 19 Sept | 87230 18:42 | +1 min | +2 min |
| Fri 18 Sept | 87230 18:46 | +6 min | +9 min |
| Thu 17 Sept | 87230 18:43 | +2 min | +3 min |
| Wed 16 Sept | 87230 18:43 | +2 min | +4 min |
| Tue 15 Sept | 87230 18:47 | +7 min | +7 min |
| Mon 14 Sept | 87230 18:57 | +17 min | +17 min |
| Sun 13 Sept | 87230 18:46 | −1 min | +1 min |
| Sat 12 Sept | 87230 18:58 | +16 min | +16 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.