South Western Railway 872P31
View line South Western Railway
Alerts for train 872P31
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
81%
22/27 runs under 3 min
RT coverage: 27 full · 0 partial · 0 no data
On-time · 90 days
83%
72/87 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
+5min
9 in 10 runs arrive with less than this
30 days: +4 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 8 Aug Max en route +14 min · last fix heading to Portsmouth & Southsea +14 min
- Sat 29 Aug Max en route +13 min · last fix heading to Portsmouth & Southsea +12 min
- Sun 18 Oct Max en route +9 min · last fix heading to Tattenham Corner +9 min
- Sat 12 Sept Max en route +9 min · last fix heading to Portsmouth & Southsea +9 min
- Wed 9 Sept Max en route +10 min · last fix heading to Tattenham Corner +8 min
Distribution · 90 days
87 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 2% · 2
- On time 80% · 70
- 3–10 min 15% · 13
- 10–30 min 2% · 2
- 30+ min 0% · 0
On-time by weekday
- 92% M n=12
- 92% T n=13
- 92% W n=13
- 77% T n=13
- 92% F n=12
- 54% S n=13
- 82% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 24 Oct | Portsmouth & Southsea 13:58 | +4 min | +4 min |
| Thu 22 Oct | Tattenham Corner 13:50 | +4 min | +20 min |
| Wed 21 Oct | Tattenham Corner 13:46 | 0 min | +4 min |
| Tue 20 Oct | Tattenham Corner 13:46 | 0 min | +1 min |
| Mon 19 Oct | Tattenham Corner 13:45 | −1 min | +3 min |
| Sun 18 Oct | Tattenham Corner 14:20 | +9 min | +9 min |
| Sat 17 Oct | Tadworth 13:53 | −1 min | +3 min |
| Fri 16 Oct | Tattenham Corner 13:49 | +3 min | +3 min |
| Thu 15 Oct | Tattenham Corner 13:47 | +1 min | +6 min |
| Wed 14 Oct | Tattenham Corner 13:48 | +2 min | +4 min |
| Tue 13 Oct | Tattenham Corner 13:46 | 0 min | +3 min |
| Mon 12 Oct | Tattenham Corner 13:47 | +1 min | +5 min |
| Sun 11 Oct | Tattenham Corner 23:15 | −1 min | +2 min |
| Sat 10 Oct | Portsmouth Harbour 14:20 | −1 min | +2 min |
| Fri 9 Oct | Tattenham Corner 13:46 | −1 min | +1 min |
| Thu 8 Oct | Tattenham Corner 13:45 | −1 min | +3 min |
| Wed 7 Oct | Tattenham Corner 13:47 | +1 min | +2 min |
| Tue 6 Oct | Tattenham Corner 13:45 | −1 min | +3 min |
| Mon 5 Oct | Tattenham Corner 13:46 | 0 min | — |
| Sun 4 Oct | Tattenham Corner 23:18 | +2 min | +3 min |
| Sat 3 Oct | Tattenham Corner 13:45 | −1 min | +5 min |
| Fri 2 Oct | Tattenham Corner 13:46 | 0 min | +2 min |
| Thu 1 Oct | Tattenham Corner 13:46 | −1 min | +1 min |
| Wed 30 Sept | Tattenham Corner 13:46 | −1 min | +3 min |
| Tue 29 Sept | Tattenham Corner 13:45 | −1 min | +1 min |
| Mon 28 Sept | Haslemere 14:28 | +1 min | +4 min |
| Sat 26 Sept | Portsmouth & Southsea 13:58 | +5 min | +6 min |
| Fri 25 Sept | Tattenham Corner 13:46 | 0 min | — |
| Thu 24 Sept | Tattenham Corner 13:47 | 0 min | +6 min |
| Wed 23 Sept | Haslemere 12:57 | −2 min | +3 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.