Govia Thameslink Railway 871L27
View line Govia Thameslink Railway
Alerts for train 871L27
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
66%
19/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
64%
57/89 runs under 3 min
RT coverage: 89 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +2 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +7 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
- Sat 17 Oct Max en route +39 min · last fix heading to Clapham Jn. C.S. +39 min
- Sat 22 Aug Max en route +22 min · last fix heading to 87230 +21 min
- Wed 12 Aug Max en route +16 min · last fix heading to 87230 +16 min
- Mon 12 Oct Max en route +15 min · last fix heading to Grateley +15 min
- Thu 17 Sept Max en route +15 min · last fix heading to 87230 +14 min
Distribution · 90 days
89 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 4
- On time 60% · 53
- 3–10 min 28% · 25
- 10–30 min 7% · 6
- 30+ min 1% · 1
On-time by weekday
- 69% M n=13
- 54% T n=13
- 69% W n=13
- 54% T n=13
- 77% F n=13
- 50% S n=12
- 75% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Clapham Jn. C.S. 12:47 | +7 min | +8 min |
| Thu 22 Oct | Clapham Jn. C.S. 12:41 | +1 min | +3 min |
| Wed 21 Oct | Clapham Jn. C.S. 12:40 | 0 min | +4 min |
| Tue 20 Oct | Grateley 12:29 | +3 min | +3 min |
| Mon 19 Oct | Grateley 12:29 | +2 min | +5 min |
| Sun 18 Oct | New Cross Gate 12:51 | +1 min | +2 min |
| Sat 17 Oct | Clapham Jn. C.S. 13:19 | +39 min | +39 min |
| Fri 16 Oct | Clapham Jn. C.S. 12:41 | 0 min | +3 min |
| Thu 15 Oct | Clapham Jn. C.S. 12:42 | +2 min | +3 min |
| Wed 14 Oct | Clapham Jn. C.S. 12:41 | +1 min | +5 min |
| Tue 13 Oct | Grateley 12:31 | +4 min | +4 min |
| Mon 12 Oct | Grateley 12:42 | +15 min | +15 min |
| Sun 11 Oct | Clapham Jn. C.S. 12:50 | 0 min | +2 min |
| Sat 10 Oct | Clapham Jn. C.S. 12:46 | +6 min | +6 min |
| Fri 9 Oct | Clapham Jn. C.S. 12:42 | +1 min | +2 min |
| Thu 8 Oct | South Croydon 12:48 | +8 min | +8 min |
| Wed 7 Oct | Grateley 12:41 | +1 min | +4 min |
| Tue 6 Oct | Grateley 12:33 | +7 min | +7 min |
| Mon 5 Oct | Grateley 12:27 | 0 min | +1 min |
| Sun 4 Oct | 87230 12:52 | +3 min | +5 min |
| Sat 3 Oct | 87230 12:42 | +2 min | +5 min |
| Fri 2 Oct | 87230 12:40 | 0 min | +3 min |
| Thu 1 Oct | 87230 12:42 | +2 min | +4 min |
| Wed 30 Sept | 87230 12:42 | +1 min | +4 min |
| Tue 29 Sept | 86162 12:33 | +6 min | +6 min |
| Mon 28 Sept | 86162 12:27 | 0 min | +1 min |
| Sun 27 Sept | 87230 12:49 | +2 min | +2 min |
| Sat 26 Sept | 87230 12:42 | +1 min | +10 min |
| Fri 25 Sept | 87230 12:40 | 0 min | +6 min |
| Thu 24 Sept | 87230 12:41 | +1 min | +5 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.