Govia Thameslink Railway 861B39
View line Govia Thameslink Railway
Alerts for train 861B39
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
25%
7/28 runs under 3 min
RT coverage: 28 full · 0 partial · 0 no data
On-time · 90 days
27%
22/81 runs under 3 min
RT coverage: 81 full · 0 partial · 0 no data
Typical delay
+5min
Median at arrival, 90 days
30 days: +6 min
P90
+13min
9 in 10 runs arrive with less than this
30 days: +13 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 22 Aug Max en route +70 min · last fix heading to 87230 +70 min
- Mon 17 Aug Max en route +34 min · last fix heading to 87230 +33 min
- Tue 29 Sept Max en route +31 min · last fix heading to 87230 +29 min
- Sat 10 Oct Max en route +16 min · last fix heading to East Croydon +16 min
- Sat 7 Nov Max en route +15 min · last fix heading to East Croydon +14 min
Distribution · 90 days
81 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 23% · 19
- 3–10 min 54% · 44
- 10–30 min 16% · 13
- 30+ min 2% · 2
On-time by weekday
- 31% M n=13
- 0% T n=13
- 46% W n=13
- 23% T n=13
- 23% F n=13
- 23% S n=13
- 100% S n=3
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | East Croydon 15:59 | +14 min | +15 min |
| Fri 6 Nov | Clapham Jn. C.S. 15:44 | +3 min | +3 min |
| Thu 5 Nov | East Croydon 15:49 | +5 min | +7 min |
| Wed 4 Nov | East Croydon 15:49 | +7 min | +7 min |
| Tue 3 Nov | Clapham Jn. C.S. 15:59 | +14 min | +15 min |
| Mon 2 Nov | Clapham Jn. C.S. 15:53 | +8 min | +9 min |
| Sun 1 Nov | Poole 16:48 | 0 min | — |
| Sat 31 Oct | Clapham Jn. C.S. 16:01 | +8 min | +9 min |
| Fri 30 Oct | Clapham Jn. C.S. 16:01 | +8 min | +9 min |
| Thu 29 Oct | Clapham Jn. C.S. 15:58 | +4 min | +6 min |
| Wed 28 Oct | Clapham Jn. C.S. 15:54 | +1 min | +4 min |
| Tue 27 Oct | Clapham Jn. C.S. 15:57 | +4 min | +4 min |
| Mon 26 Oct | Clapham Jn. C.S. 16:06 | +13 min | +13 min |
| Sun 25 Oct | Poole 16:43 | +1 min | +1 min |
| Sat 24 Oct | Clapham Jn. C.S. 16:01 | +8 min | +9 min |
| Fri 23 Oct | East Croydon 16:05 | +12 min | +12 min |
| Thu 22 Oct | Clapham Jn. C.S. 15:58 | +5 min | +6 min |
| Wed 21 Oct | Clapham Jn. C.S. 16:06 | +13 min | +14 min |
| Tue 20 Oct | Clapham Jn. C.S. 16:03 | +9 min | +11 min |
| Mon 19 Oct | Earlswood (Surrey) 15:53 | 0 min | +6 min |
| Sat 17 Oct | Clapham Jn. C.S. 15:56 | −1 min | +4 min |
| Fri 16 Oct | East Croydon 15:59 | +5 min | +6 min |
| Thu 15 Oct | Earlswood (Surrey) 16:01 | +8 min | +8 min |
| Wed 14 Oct | Clapham Jn. C.S. 15:55 | +2 min | +4 min |
| Tue 13 Oct | Clapham Jn. C.S. 16:01 | +8 min | +9 min |
| Mon 12 Oct | Earlswood (Surrey) 15:54 | +1 min | +2 min |
| Sat 10 Oct | East Croydon 16:09 | +16 min | +16 min |
| Fri 9 Oct | East Croydon 15:56 | +3 min | +3 min |
| Thu 8 Oct | East Croydon 15:53 | 0 min | +2 min |
| Wed 7 Oct | Earlswood (Surrey) 15:54 | 0 min | +4 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.