South Western Railway 871P27
Alerts for train 871P27
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.
Running now · updated 11:01
Running now +2 min
Today it is running worse than usual: typical arrival delay is −1 min; 83% of the last 30 runs arrived on time.
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
- Wed 29 Jul Max en route +49 min · last fix heading to Portsmouth & Southsea +49 min
- Sat 5 Sept Max en route +30 min · last fix heading to Portsmouth Harbour +30 min
- Sun 4 Oct Max en route +25 min · last fix heading to Caterham +19 min
- Sat 3 Oct Max en route +19 min · last fix heading to Havant +17 min
- Wed 23 Sept Max en route +15 min · last fix heading to Caterham +11 min
Distribution · 90 days
90 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 4
- On time 83% · 75
- 3–10 min 7% · 6
- 10–30 min 3% · 3
- 30+ min 2% · 2
On-time by weekday
- 100% M n=13
- 100% T n=13
- 85% W n=13
- 77% T n=13
- 100% F n=12
- 77% S n=13
- 77% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 15 Oct | Surbiton 10:59 | +2 min | +2 min |
| Wed 14 Oct | Caterham 12:34 | −1 min | +2 min |
| Tue 13 Oct | Caterham 12:35 | −1 min | +9 min |
| Mon 12 Oct | Caterham 12:35 | −1 min | +9 min |
| Sun 11 Oct | Caterham 14:31 | −3 min | +1 min |
| Sat 10 Oct | Caterham 12:35 | −1 min | +2 min |
| Fri 9 Oct | Caterham 12:35 | 0 min | +3 min |
| Thu 8 Oct | Caterham 12:34 | −2 min | +2 min |
| Wed 7 Oct | Caterham 12:35 | −1 min | +3 min |
| Tue 6 Oct | Caterham 12:35 | 0 min | +4 min |
| Mon 5 Oct | Caterham 12:35 | −1 min | +1 min |
| Sun 4 Oct | Caterham 14:52 | +19 min | +25 min |
| Sat 3 Oct | Havant 00:45 | +17 min | +19 min |
| Fri 2 Oct | Caterham 12:35 | −1 min | +3 min |
| Thu 1 Oct | Caterham 12:35 | −1 min | +9 min |
| Wed 30 Sept | Caterham 12:36 | 0 min | +15 min |
| Tue 29 Sept | Caterham 12:35 | −1 min | +6 min |
| Mon 28 Sept | Caterham 12:35 | −1 min | +2 min |
| Sun 27 Sept | Portsmouth Harbour 12:23 | +2 min | +2 min |
| Sat 26 Sept | Caterham 12:35 | 0 min | +4 min |
| Fri 25 Sept | Caterham 12:34 | −1 min | +4 min |
| Thu 24 Sept | Caterham 12:35 | −1 min | +5 min |
| Wed 23 Sept | Caterham 12:47 | +11 min | +15 min |
| Tue 22 Sept | Caterham 12:35 | −1 min | +2 min |
| Mon 21 Sept | Caterham 12:35 | 0 min | +7 min |
| Sun 20 Sept | Caterham 14:32 | −1 min | +14 min |
| Sat 19 Sept | Caterham 12:39 | +3 min | +4 min |
| Fri 18 Sept | Caterham 12:34 | −1 min | +12 min |
| Thu 17 Sept | Portsmouth Harbour 14:34 | +5 min | +17 min |
| Wed 16 Sept | Caterham 12:34 | −1 min | +4 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.