South Western Railway 872P51
View line South Western Railway
Alerts for train 872P51
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
48%
13/27 runs under 3 min
RT coverage: 27 full · 0 partial · 0 no data
On-time · 90 days
52%
41/79 runs under 3 min
RT coverage: 79 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +3 min
P90
+10min
9 in 10 runs arrive with less than this
30 days: +10 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 7 Aug Max en route +84 min · last fix heading to Portsmouth & Southsea +60 min
- Tue 22 Sept Max en route +16 min · last fix heading to Portsmouth & Southsea +16 min
- Sat 12 Sept Max en route +21 min · last fix heading to Portsmouth & Southsea +14 min
- Fri 14 Aug Max en route +15 min · last fix heading to Tattenham Corner +14 min
- Fri 31 Jul Max en route +13 min · last fix heading to Tattenham Corner +13 min
Distribution · 90 days
79 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 52% · 41
- 3–10 min 33% · 26
- 10–30 min 14% · 11
- 30+ min 1% · 1
On-time by weekday
- 54% M n=13
- 54% T n=13
- 54% W n=13
- 83% T n=12
- 42% F n=12
- 23% S n=13
- 67% S n=3
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | Portsmouth & Southsea 18:59 | +4 min | +6 min |
| Tue 20 Oct | Portsmouth & Southsea 18:54 | 0 min | +4 min |
| Mon 19 Oct | Tattenham Corner 18:55 | +1 min | +8 min |
| Sun 18 Oct | Tattenham Corner 19:14 | +3 min | +4 min |
| Sat 17 Oct | Portsmouth & Southsea 19:04 | +10 min | +10 min |
| Fri 16 Oct | Chipstead 18:56 | +2 min | +8 min |
| Thu 15 Oct | Portsmouth & Southsea 18:56 | +1 min | +4 min |
| Wed 14 Oct | Bedhampton 19:04 | +9 min | +9 min |
| Tue 13 Oct | Portsmouth & Southsea 19:00 | +5 min | +5 min |
| Mon 12 Oct | Portsmouth & Southsea 19:04 | +10 min | +10 min |
| Sun 11 Oct | Portsmouth & Southsea 18:14 | 0 min | +1 min |
| Sat 10 Oct | Portsmouth Harbour 19:21 | 0 min | +1 min |
| Fri 9 Oct | Tattenham Corner 18:59 | +4 min | +5 min |
| Thu 8 Oct | Portsmouth & Southsea 19:00 | +5 min | +5 min |
| Wed 7 Oct | Tadworth 19:04 | +10 min | +10 min |
| Tue 6 Oct | Portsmouth & Southsea 18:55 | 0 min | +7 min |
| Mon 5 Oct | Tattenham Corner 18:54 | −1 min | +3 min |
| Sat 3 Oct | Havant 18:51 | +12 min | +16 min |
| Fri 2 Oct | Portsmouth & Southsea 18:59 | +4 min | +9 min |
| Thu 1 Oct | Portsmouth & Southsea 18:54 | −1 min | +2 min |
| Wed 30 Sept | Portsmouth & Southsea 18:56 | +1 min | +4 min |
| Tue 29 Sept | Portsmouth & Southsea 18:56 | +1 min | +4 min |
| Mon 28 Sept | Portsmouth & Southsea 19:03 | +9 min | +9 min |
| Sat 26 Sept | Portsmouth & Southsea 19:03 | +10 min | +10 min |
| Fri 25 Sept | Portsmouth & Southsea 19:07 | +12 min | +12 min |
| Thu 24 Sept | Portsmouth & Southsea 18:54 | 0 min | +2 min |
| Wed 23 Sept | Portsmouth & Southsea 18:54 | −1 min | +2 min |
| Tue 22 Sept | Portsmouth & Southsea 19:10 | +16 min | +16 min |
| Mon 21 Sept | Tattenham Corner 18:47 | 0 min | +1 min |
| Sat 19 Sept | Portsmouth & Southsea 19:00 | +8 min | +8 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.