South Western Railway 872J21
View line South Western Railway
Alerts for train 872J21
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
76%
22/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
73%
65/89 runs under 3 min
RT coverage: 89 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +3 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
- Sun 2 Aug Max en route +39 min · last fix heading to Hampton Court +33 min
- Thu 6 Aug Max en route +30 min · last fix heading to Guildford +30 min
- Wed 26 Aug Max en route +17 min · last fix heading to Guildford +13 min
- Sun 11 Oct Max en route +12 min · last fix heading to Hampton Court +12 min
- Sun 4 Oct Max en route +5 min · last fix heading to Hampton Court +5 min
Distribution · 90 days
89 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 73% · 65
- 3–10 min 22% · 20
- 10–30 min 2% · 2
- 30+ min 2% · 2
On-time by weekday
- 85% M n=13
- 69% T n=13
- 69% W n=13
- 85% T n=13
- 85% F n=13
- 58% S n=12
- 58% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Guildford 11:37 | +1 min | +3 min |
| Thu 22 Oct | Guildford 11:39 | +2 min | +2 min |
| Wed 21 Oct | Guildford 11:37 | +1 min | +6 min |
| Tue 20 Oct | Guildford 11:38 | +2 min | +2 min |
| Mon 19 Oct | Guildford 11:35 | −1 min | +2 min |
| Sun 18 Oct | Caterham 11:25 | +1 min | +5 min |
| Sat 17 Oct | Guildford 11:37 | +1 min | +2 min |
| Fri 16 Oct | Guildford 11:37 | +1 min | +6 min |
| Thu 15 Oct | Guildford 11:37 | 0 min | +1 min |
| Wed 14 Oct | Guildford 11:39 | +2 min | +2 min |
| Tue 13 Oct | Guildford 11:40 | +3 min | +3 min |
| Mon 12 Oct | Thames Ditton 10:52 | +1 min | +1 min |
| Sun 11 Oct | Hampton Court 11:24 | +12 min | +12 min |
| Sat 10 Oct | Selhurst 22:54 | +3 min | +3 min |
| Fri 9 Oct | Guildford 11:33 | +1 min | +3 min |
| Thu 8 Oct | Guildford 11:38 | +2 min | +2 min |
| Wed 7 Oct | Guildford 11:37 | 0 min | — |
| Tue 6 Oct | Guildford 11:38 | +1 min | +2 min |
| Mon 5 Oct | Guildford 11:39 | +3 min | +3 min |
| Sun 4 Oct | Hampton Court 11:17 | +5 min | +5 min |
| Sat 3 Oct | Guildford 11:39 | +3 min | +3 min |
| Fri 2 Oct | Guildford 11:40 | +4 min | +4 min |
| Thu 1 Oct | Guildford 11:38 | +2 min | +2 min |
| Wed 30 Sept | Guildford 11:36 | 0 min | +2 min |
| Tue 29 Sept | Guildford 11:37 | +1 min | +1 min |
| Mon 28 Sept | Guildford 11:35 | −1 min | +11 min |
| Sun 27 Sept | Hampton Court 11:13 | +2 min | +4 min |
| Sat 26 Sept | Guildford 11:37 | 0 min | +1 min |
| Fri 25 Sept | Guildford 11:38 | +1 min | +6 min |
| Thu 24 Sept | Guildford 11:41 | +5 min | +5 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.