Govia Thameslink Railway 861B31
View line Govia Thameslink Railway
Alerts for train 861B31
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
27%
7/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
25%
19/77 runs under 3 min
RT coverage: 77 full · 0 partial · 0 no data
Typical delay
+6min
Median at arrival, 90 days
30 days: +5 min
P90
+19min
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
- Fri 31 Jul Max en route +111 min · last fix heading to 87230 +111 min
- Wed 23 Sept Max en route +46 min · last fix heading to 87230 +31 min
- Mon 27 Jul Max en route +31 min · last fix heading to 87230 +30 min
- Thu 8 Oct Max en route +22 min · last fix heading to East Croydon +21 min
- Thu 20 Aug Max en route +23 min · last fix heading to 87230 +21 min
Distribution · 90 days
77 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 23% · 18
- 3–10 min 49% · 38
- 10–30 min 22% · 17
- 30+ min 4% · 3
On-time by weekday
- 15% M n=13
- 31% T n=13
- 33% W n=12
- 8% T n=12
- 8% F n=13
- 46% S n=13
- 100% S n=1
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Earlswood (Surrey) 14:00 | +6 min | +7 min |
| Mon 19 Oct | Clapham Jn. C.S. 14:01 | +8 min | +8 min |
| Sat 17 Oct | Clapham Jn. C.S. 14:07 | +10 min | +12 min |
| Fri 16 Oct | Clapham Jn. C.S. 14:01 | +7 min | +9 min |
| Thu 15 Oct | East Croydon 13:58 | +5 min | +7 min |
| Wed 14 Oct | Earlswood (Surrey) 13:53 | 0 min | +2 min |
| Tue 13 Oct | Clapham Jn. C.S. 13:56 | +3 min | +4 min |
| Mon 12 Oct | Clapham Jn. C.S. 14:04 | +10 min | +11 min |
| Sat 10 Oct | Clapham Jn. C.S. 13:56 | +3 min | +6 min |
| Fri 9 Oct | East Croydon 13:54 | +1 min | +2 min |
| Thu 8 Oct | East Croydon 14:15 | +21 min | +22 min |
| Wed 7 Oct | East Croydon 13:54 | 0 min | +2 min |
| Tue 6 Oct | East Croydon 13:53 | 0 min | +1 min |
| Mon 5 Oct | Earlswood (Surrey) 13:56 | +3 min | +3 min |
| Sat 3 Oct | 87230 13:54 | +1 min | +3 min |
| Fri 2 Oct | 87230 14:00 | +6 min | +7 min |
| Thu 1 Oct | 87230 13:58 | +5 min | +7 min |
| Wed 30 Sept | 87230 13:58 | +4 min | +6 min |
| Tue 29 Sept | 87230 14:01 | +8 min | +8 min |
| Mon 28 Sept | 87230 13:59 | +6 min | +6 min |
| Sun 27 Sept | Poole Ferry Terminal 14:41 | 0 min | +2 min |
| Sat 26 Sept | 87230 13:55 | +2 min | +3 min |
| Fri 25 Sept | 87230 13:58 | +5 min | +6 min |
| Thu 24 Sept | 87230 14:04 | +10 min | +18 min |
| Wed 23 Sept | 87230 14:24 | +31 min | +46 min |
| Tue 22 Sept | 87230 13:58 | +4 min | +6 min |
| Mon 21 Sept | 87230 13:56 | +3 min | +4 min |
| Sat 19 Sept | 86445 12:10 | −2 min | — |
| Fri 18 Sept | 87230 13:56 | +4 min | +21 min |
| Thu 17 Sept | 87230 14:12 | +19 min | +22 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.