Govia Thameslink Railway 871B50
View line Govia Thameslink Railway
Alerts for train 871B50
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
23%
6/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
25%
19/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
+6min
Median at arrival, 90 days
30 days: +6 min
P90
+24min
9 in 10 runs arrive with less than this
30 days: +16 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
- Fri 23 Oct Max en route +98 min · last fix heading to Bognor Regis +98 min
- Sat 22 Aug Max en route +62 min · last fix heading to Bognor Regis C.H.S. +62 min
- Wed 12 Aug Max en route +31 min · last fix heading to Bognor Regis C.H.S. +31 min
- Thu 20 Aug Max en route +29 min · last fix heading to Bognor Regis C.H.S. +29 min
- Tue 29 Sept Max en route +28 min · last fix heading to Bognor Regis C.H.S. +28 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 25% · 19
- 3–10 min 41% · 31
- 10–30 min 30% · 23
- 30+ min 4% · 3
On-time by weekday
- 31% M n=13
- 15% T n=13
- 23% W n=13
- 31% T n=13
- 25% F n=12
- 20% S n=10
- 50% S n=2
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 5 Nov | Bognor Regis 19:25 | +6 min | +6 min |
| Wed 4 Nov | Bognor Regis 19:29 | +9 min | +9 min |
| Tue 3 Nov | Bognor Regis 19:24 | +3 min | +4 min |
| Mon 2 Nov | Bognor Regis 19:24 | +3 min | +5 min |
| Sat 31 Oct | Bognor Regis 19:30 | +1 min | +2 min |
| Fri 30 Oct | Bognor Regis 19:28 | −1 min | +2 min |
| Thu 29 Oct | Bognor Regis 19:31 | +2 min | +4 min |
| Wed 28 Oct | Bognor Regis 19:41 | +12 min | +12 min |
| Tue 27 Oct | Bognor Regis 19:35 | +6 min | +6 min |
| Mon 26 Oct | Bognor Regis 19:42 | +12 min | +12 min |
| Sun 25 Oct | Bognor Regis 19:34 | 0 min | — |
| Sat 24 Oct | Bognor Regis 19:43 | +14 min | +99 min |
| Fri 23 Oct | Bognor Regis 21:08 | +98 min | +98 min |
| Thu 22 Oct | Bognor Regis 19:47 | +18 min | +18 min |
| Wed 21 Oct | Bognor Regis 19:41 | +11 min | +11 min |
| Tue 20 Oct | Bognor Regis 19:57 | +27 min | +30 min |
| Mon 19 Oct | Bognor Regis 19:31 | +2 min | +4 min |
| Sat 17 Oct | Bognor Regis 19:35 | +5 min | +7 min |
| Fri 16 Oct | Bognor Regis 19:33 | +4 min | +5 min |
| Thu 15 Oct | Bognor Regis 19:30 | +1 min | +4 min |
| Wed 14 Oct | Bognor Regis 19:34 | +5 min | +7 min |
| Tue 13 Oct | Bognor Regis 19:36 | +7 min | +7 min |
| Mon 12 Oct | Bognor Regis 19:38 | +9 min | +9 min |
| Sat 10 Oct | Bognor Regis 19:40 | +11 min | +11 min |
| Fri 9 Oct | Bognor Regis 19:32 | +3 min | +4 min |
| Thu 8 Oct | Bognor Regis 19:39 | +9 min | +10 min |
| Wed 7 Oct | Bognor Regis 19:31 | +1 min | +1 min |
| Tue 6 Oct | Bognor Regis 19:31 | +2 min | +4 min |
| Mon 5 Oct | Bognor Regis 19:31 | +2 min | +4 min |
| Sat 3 Oct | Bognor Regis C.H.S. 19:29 | 0 min | +3 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.