South Western Railway 861W66
View line South Western Railway
Alerts for train 861W66
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line South Western Railway.
The mini-map returns when the train runs
On-time · 30 days
12%
3/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
16%
12/77 runs under 3 min
RT coverage: 77 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +7 min
P90
+22min
9 in 10 runs arrive with less than this
30 days: +24 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 3 Oct Max en route +89 min · last fix heading to 87286 +87 min
- Sun 4 Oct Max en route +54 min · last fix heading to — +54 min
- Thu 20 Aug Max en route +48 min · last fix heading to 87286 +48 min
- Fri 7 Aug Max en route +31 min · last fix heading to 87286 +31 min
- Fri 18 Sept Max en route +30 min · last fix heading to 87286 +30 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 14% · 11
- 3–10 min 42% · 32
- 10–30 min 36% · 28
- 30+ min 6% · 5
On-time by weekday
- 25% M n=12
- 8% T n=13
- 8% W n=13
- 15% T n=13
- 8% F n=12
- 31% S n=13
- 0% S n=1
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 24 Oct | Clapham Jn. C.S. 18:28 | 0 min | +2 min |
| Thu 22 Oct | Farnborough (Main) 17:45 | +3 min | +3 min |
| Wed 21 Oct | Clapham Jn. C.S. 18:47 | +19 min | +19 min |
| Tue 20 Oct | Clapham Jn. C.S. 18:33 | +4 min | +5 min |
| Mon 19 Oct | Clapham Jn. C.S. 18:56 | +28 min | +28 min |
| Sat 17 Oct | Clapham Jn. C.S. 18:46 | +18 min | +18 min |
| Fri 16 Oct | Wimbledon 18:32 | +4 min | +4 min |
| Thu 15 Oct | Clapham Jn. C.S. 18:33 | +5 min | +5 min |
| Wed 14 Oct | Wimbledon 18:32 | +4 min | +4 min |
| Tue 13 Oct | Wimbledon 00:29 | +18 min | +20 min |
| Mon 12 Oct | Wimbledon 18:32 | +4 min | +12 min |
| Sat 10 Oct | Clapham Jn. C.S. 18:30 | +2 min | +3 min |
| Fri 9 Oct | Clapham Jn. C.S. 18:35 | +7 min | +7 min |
| Thu 8 Oct | Clapham Jn. C.S. 18:31 | +3 min | +4 min |
| Wed 7 Oct | Clapham Jn. C.S. 18:35 | +7 min | +7 min |
| Tue 6 Oct | Clapham Jn. C.S. 18:44 | +16 min | +21 min |
| Mon 5 Oct | Clapham Jn. C.S. 18:38 | +12 min | +24 min |
| Sun 4 Oct | — 01:42 | +54 min | +54 min |
| Sat 3 Oct | 87286 19:55 | +87 min | +89 min |
| Fri 2 Oct | 87286 18:41 | +13 min | +13 min |
| Thu 1 Oct | 87286 18:43 | +15 min | +15 min |
| Wed 30 Sept | 87286 18:35 | +7 min | +7 min |
| Tue 29 Sept | 87286 18:46 | +18 min | +18 min |
| Mon 28 Sept | 87286 18:43 | +15 min | +15 min |
| Sat 26 Sept | 87286 18:31 | +2 min | +6 min |
| Fri 25 Sept | 87286 18:47 | +19 min | +19 min |
| Thu 24 Sept | 87286 18:42 | +14 min | +14 min |
| Wed 23 Sept | 87177 18:18 | +9 min | +9 min |
| Tue 22 Sept | 87286 18:35 | +7 min | +7 min |
| Mon 21 Sept | 87286 18:39 | +11 min | +11 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.