South Western Railway 821L28
View line South Western Railway
Alerts for train 821L28
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
52%
15/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
64%
45/70 runs under 3 min
RT coverage: 70 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +1 min
P90
+7min
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
- Thu 24 Sept Max en route +37 min · last fix heading to 87286 +33 min
- Wed 26 Aug Max en route +16 min · last fix heading to 87286 +14 min
- Mon 12 Oct Max en route +13 min · last fix heading to Clapham Jn. C.S. +13 min
- Mon 24 Aug Max en route +17 min · last fix heading to 87286 +13 min
- Sun 2 Aug Max en route +13 min · last fix heading to 87286 +12 min
Distribution · 90 days
70 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 16% · 11
- On time 49% · 34
- 3–10 min 29% · 20
- 10–30 min 6% · 4
- 30+ min 1% · 1
On-time by weekday
- 50% M n=10
- 60% T n=10
- 70% W n=10
- 60% T n=10
- 78% F n=9
- 56% S n=9
- 75% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 15 Oct | Wimbledon 10:51 | +1 min | +4 min |
| Wed 14 Oct | Clapham Jn. C.S. 10:53 | +3 min | +3 min |
| Tue 13 Oct | Clapham Jn. C.S. 10:53 | +3 min | +5 min |
| Mon 12 Oct | Clapham Jn. C.S. 11:03 | +13 min | +13 min |
| Sun 11 Oct | Gillingham (Dorset) 23:15 | 0 min | +1 min |
| Sat 10 Oct | Gillingham (Dorset) 08:51 | +1 min | +1 min |
| Fri 9 Oct | Clapham Jn. C.S. 10:56 | +6 min | +6 min |
| Thu 8 Oct | Clapham Jn. C.S. 10:56 | +6 min | +6 min |
| Wed 7 Oct | Clapham Jn. C.S. 10:49 | −1 min | +1 min |
| Tue 6 Oct | Clapham Jn. C.S. 10:57 | +7 min | +7 min |
| Mon 5 Oct | 87286 10:53 | +3 min | +3 min |
| Sat 3 Oct | 87286 10:57 | 0 min | +3 min |
| Fri 2 Oct | 87286 10:55 | −2 min | +3 min |
| Thu 1 Oct | 87286 10:58 | +1 min | +3 min |
| Wed 30 Sept | 87286 10:58 | +1 min | +6 min |
| Tue 29 Sept | 87286 10:56 | −1 min | +4 min |
| Mon 28 Sept | 87286 11:01 | +4 min | +7 min |
| Sun 27 Sept | 87286 11:03 | −2 min | +1 min |
| Sat 26 Sept | 87286 11:00 | +3 min | +7 min |
| Fri 25 Sept | 87286 10:56 | −1 min | +4 min |
| Thu 24 Sept | 87286 11:30 | +33 min | +37 min |
| Wed 23 Sept | 87286 14:42 | −1 min | +3 min |
| Tue 22 Sept | 87286 10:57 | 0 min | +5 min |
| Mon 21 Sept | 87286 10:54 | −3 min | +2 min |
| Sun 20 Sept | 87215 11:32 | 0 min | +1 min |
| Sat 19 Sept | 87215 11:33 | +4 min | +4 min |
| Fri 18 Sept | 87286 11:00 | +3 min | +4 min |
| Thu 17 Sept | 87286 11:06 | +9 min | +13 min |
| Wed 16 Sept | 87286 11:01 | +4 min | +9 min |
| Tue 15 Sept | 87286 11:01 | +4 min | +7 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.