South Western Railway 821L36
View line South Western Railway
Alerts for train 821L36
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
72%
21/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
71%
62/87 runs under 3 min
RT coverage: 87 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+10min
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
- Fri 2 Oct Max en route +46 min · last fix heading to Farnborough (Main) +45 min
- Sat 5 Sept Max en route +27 min · last fix heading to 87286 +27 min
- Tue 3 Nov Max en route +31 min · last fix heading to Wimbledon +26 min
- Sat 29 Aug Max en route +22 min · last fix heading to 87286 +20 min
- Thu 15 Oct Max en route +18 min · last fix heading to Clapham Jn. C.S. +14 min
Distribution · 90 days
87 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 21% · 18
- On time 51% · 44
- 3–10 min 17% · 15
- 10–30 min 10% · 9
- 30+ min 1% · 1
On-time by weekday
- 77% M n=13
- 92% T n=13
- 77% W n=13
- 69% T n=13
- 75% F n=12
- 42% S n=12
- 64% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 5 Nov | Clapham Jn. C.S. 12:53 | +4 min | +11 min |
| Wed 4 Nov | Clapham Jn. C.S. 12:54 | +11 min | +15 min |
| Tue 3 Nov | Wimbledon 13:14 | +26 min | +31 min |
| Mon 2 Nov | Clapham Jn. C.S. 12:43 | −6 min | +1 min |
| Sun 1 Nov | Clapham Jn. C.S. 13:06 | +6 min | +6 min |
| Sat 31 Oct | Clapham Jn. C.S. 12:50 | −3 min | +3 min |
| Fri 30 Oct | Clapham Jn. C.S. 12:53 | −4 min | +2 min |
| Thu 29 Oct | Wimbledon 12:57 | 0 min | +6 min |
| Wed 28 Oct | Clapham Jn. C.S. 12:57 | −1 min | +15 min |
| Tue 27 Oct | Clapham Jn. C.S. 12:59 | +2 min | +8 min |
| Mon 26 Oct | Clapham Jn. C.S. 12:49 | −8 min | +1 min |
| Sun 25 Oct | Clapham Jn. C.S. 12:59 | −1 min | +7 min |
| Sat 24 Oct | Clapham Jn. C.S. 12:56 | +2 min | +5 min |
| Fri 23 Oct | Clapham Jn. C.S. 12:50 | −7 min | +3 min |
| Thu 22 Oct | Andover 11:58 | 0 min | +1 min |
| Wed 21 Oct | Clapham Jn. C.S. 13:03 | +6 min | +7 min |
| Tue 20 Oct | Wimbledon 12:52 | −5 min | +1 min |
| Mon 19 Oct | Wimbledon 12:58 | +1 min | +7 min |
| Sat 17 Oct | Clapham Jn. C.S. 12:59 | +6 min | +6 min |
| Fri 16 Oct | Clapham Jn. C.S. 12:53 | −4 min | +3 min |
| Thu 15 Oct | Clapham Jn. C.S. 13:11 | +14 min | +18 min |
| Wed 14 Oct | Wimbledon 12:53 | −4 min | +5 min |
| Tue 13 Oct | Clapham Jn. C.S. 12:53 | −5 min | +2 min |
| Mon 12 Oct | Clapham Jn. C.S. 13:02 | +4 min | +9 min |
| Sun 11 Oct | Gillingham (Dorset) 10:54 | 0 min | — |
| Sat 10 Oct | Gillingham (Dorset) 22:58 | 0 min | +1 min |
| Fri 9 Oct | Clapham Jn. C.S. 12:57 | −1 min | +3 min |
| Thu 8 Oct | Clapham Jn. C.S. 12:59 | +2 min | +5 min |
| Wed 7 Oct | Clapham Jn. C.S. 12:58 | +1 min | +5 min |
| Tue 6 Oct | Clapham Jn. C.S. 12:57 | 0 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.