South Western Railway 861W12
View line South Western Railway
Alerts for train 861W12
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
38%
9/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
42%
32/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +7 min
P90
+25min
9 in 10 runs arrive with less than this
30 days: +23 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
- Mon 5 Oct Max en route +83 min · last fix heading to Clapham Jn. C.S. +80 min
- Fri 7 Aug Max en route +48 min · last fix heading to 87286 +44 min
- Sat 26 Sept Max en route +48 min · last fix heading to 87286 +43 min
- Mon 17 Aug Max en route +38 min · last fix heading to 87286 +36 min
- Sat 15 Aug Max en route +28 min · last fix heading to 87286 +28 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 5% · 4
- On time 37% · 28
- 3–10 min 28% · 21
- 10–30 min 25% · 19
- 30+ min 5% · 4
On-time by weekday
- 17% M n=12
- 85% T n=13
- 62% W n=13
- 31% T n=13
- 42% F n=12
- 15% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Clapham Jn. C.S. 13:02 | +2 min | +6 min |
| Fri 30 Oct | Wimbledon 12:58 | +1 min | +8 min |
| Thu 29 Oct | Clapham Jn. C.S. 13:15 | +18 min | +19 min |
| Wed 28 Oct | Clapham Jn. C.S. 12:59 | +1 min | +3 min |
| Tue 27 Oct | Clapham Jn. C.S. 13:12 | +14 min | +14 min |
| Mon 26 Oct | Wimbledon 13:23 | +26 min | +30 min |
| Sat 24 Oct | Clapham Jn. C.S. 13:04 | +7 min | +7 min |
| Thu 22 Oct | Clapham Jn. C.S. 13:05 | +8 min | +8 min |
| Wed 21 Oct | Clapham Jn. C.S. 13:09 | +12 min | +12 min |
| Tue 20 Oct | Clapham Jn. C.S. 12:55 | −2 min | +3 min |
| Mon 19 Oct | Clapham Jn. C.S. 13:01 | +4 min | +7 min |
| Sat 17 Oct | Clapham Jn. C.S. 13:01 | +6 min | +7 min |
| Fri 16 Oct | Clapham Jn. C.S. 13:11 | +14 min | +18 min |
| Thu 15 Oct | Clapham Jn. C.S. 13:14 | +16 min | +20 min |
| Wed 14 Oct | Clapham Jn. C.S. 12:55 | −2 min | +3 min |
| Tue 13 Oct | Clapham Jn. C.S. 12:57 | 0 min | +4 min |
| Mon 12 Oct | Clapham Jn. C.S. 13:22 | +25 min | +27 min |
| Sat 10 Oct | Clapham Jn. C.S. 13:01 | +6 min | +6 min |
| Fri 9 Oct | Clapham Jn. C.S. 12:56 | −1 min | +2 min |
| Thu 8 Oct | Wimbledon 13:08 | +11 min | +14 min |
| Wed 7 Oct | Clapham Jn. C.S. 13:00 | +2 min | +5 min |
| Tue 6 Oct | Wimbledon 12:56 | −1 min | +81 min |
| Mon 5 Oct | Clapham Jn. C.S. 14:17 | +80 min | +83 min |
| Sat 3 Oct | 87286 13:10 | +10 min | +17 min |
| Fri 2 Oct | 87286 12:57 | −1 min | +10 min |
| Thu 1 Oct | 87286 12:58 | +1 min | +19 min |
| Wed 30 Sept | 87286 13:18 | +21 min | +27 min |
| Tue 29 Sept | 87286 12:58 | +1 min | +4 min |
| Mon 28 Sept | 87286 13:05 | +8 min | +13 min |
| Sat 26 Sept | 87286 16:00 | +43 min | +48 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.