Govia Thameslink Railway 871P77
View line Govia Thameslink Railway
Alerts for train 871P77
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
46%
12/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
49%
37/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +4 min
P90
+11min
9 in 10 runs arrive with less than this
30 days: +9 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 6 Sept Max en route +31 min · last fix heading to Portsmouth Harbour +31 min
- Sat 5 Sept Max en route +30 min · last fix heading to Portsmouth Harbour +30 min
- Sat 25 Jul Max en route +16 min · last fix heading to Portsmouth Harbour +16 min
- Sat 8 Aug Max en route +14 min · last fix heading to Portsmouth Harbour +14 min
- Sat 22 Aug Max en route +14 min · last fix heading to Portsmouth Harbour +13 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 45% · 34
- 3–10 min 39% · 29
- 10–30 min 9% · 7
- 30+ min 3% · 2
On-time by weekday
- — M n=0
- 77% T n=13
- 50% W n=12
- 50% T n=12
- 25% F n=12
- 46% S n=13
- 46% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Whyteleafe 01:08 | −1 min | +2 min |
| Sat 10 Oct | Surbiton 23:38 | +2 min | +2 min |
| Fri 9 Oct | Caterham 01:15 | +7 min | +8 min |
| Thu 8 Oct | Caterham 01:10 | +2 min | +4 min |
| Wed 7 Oct | Caterham 01:09 | +3 min | +4 min |
| Tue 6 Oct | Caterham 01:06 | 0 min | +1 min |
| Sun 4 Oct | Caterham 01:17 | +8 min | +9 min |
| Sat 3 Oct | Caterham 01:10 | −1 min | +2 min |
| Fri 2 Oct | Caterham 01:09 | +4 min | +6 min |
| Thu 1 Oct | Caterham 01:06 | 0 min | +2 min |
| Wed 30 Sept | Caterham 01:12 | +6 min | +9 min |
| Tue 29 Sept | Caterham 01:05 | −1 min | +2 min |
| Sun 27 Sept | Caterham 01:08 | −1 min | +2 min |
| Sat 26 Sept | Portsmouth Harbour 00:49 | +2 min | +5 min |
| Fri 25 Sept | Caterham 01:11 | +5 min | +5 min |
| Thu 24 Sept | Caterham 01:11 | +6 min | +8 min |
| Wed 23 Sept | Caterham 01:04 | −1 min | +1 min |
| Tue 22 Sept | Caterham 01:06 | 0 min | +1 min |
| Sun 20 Sept | Caterham 01:18 | +10 min | +11 min |
| Sat 19 Sept | Caterham 01:09 | −1 min | +1 min |
| Fri 18 Sept | Caterham 01:18 | +8 min | +9 min |
| Thu 17 Sept | Caterham 01:22 | +11 min | +14 min |
| Wed 16 Sept | Caterham 01:16 | +5 min | +7 min |
| Tue 15 Sept | Caterham 01:17 | +6 min | +9 min |
| Sun 13 Sept | Caterham 01:25 | +8 min | +8 min |
| Sat 12 Sept | Portsmouth Harbour 00:57 | +12 min | +13 min |
| Fri 11 Sept | South Croydon 00:50 | +5 min | +5 min |
| Thu 10 Sept | South Croydon 00:47 | +1 min | +1 min |
| Wed 9 Sept | South Croydon 00:46 | 0 min | — |
| Tue 8 Sept | South Croydon 00:46 | 0 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.