GWR 821F01
View line GWR
Alerts for train 821F01
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line GWR.
The mini-map returns when the train runs
On-time · 30 days
14%
1/7 runs under 3 min
RT coverage: 7 full · 0 partial · 0 no data
On-time · 90 days
52%
11/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +4 min
P90
+5min
9 in 10 runs arrive with less than this
30 days: +5 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 5 Sept Max en route +11 min · last fix heading to Portsmouth Harbour +10 min
- Sat 17 Oct Max en route +6 min · last fix heading to Warminster +6 min
- Mon 5 Oct Max en route +7 min · last fix heading to Portsmouth Harbour +5 min
- Mon 21 Sept Max en route +8 min · last fix heading to Portsmouth Harbour +5 min
- Sat 3 Oct Max en route +4 min · last fix heading to Fareham +4 min
Distribution · 90 days
21 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 5% · 1
- On time 48% · 10
- 3–10 min 43% · 9
- 10–30 min 5% · 1
- 30+ min 0% · 0
On-time by weekday
- 25% M n=4
- 100% T n=1
- 100% W n=1
- 100% T n=1
- 100% F n=1
- 46% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 17 Oct | Warminster 06:45 | +6 min | +6 min |
| Sat 10 Oct | Warminster 06:16 | +2 min | +2 min |
| Mon 5 Oct | Portsmouth Harbour 07:50 | +5 min | +7 min |
| Sat 3 Oct | Fareham 07:39 | +4 min | +4 min |
| Sat 26 Sept | Portsmouth Harbour 08:03 | +3 min | +4 min |
| Mon 21 Sept | Portsmouth Harbour 07:50 | +5 min | +8 min |
| Sat 19 Sept | Portsmouth Harbour 08:04 | +4 min | +5 min |
| Sat 12 Sept | 86525 07:11 | −2 min | — |
| Sat 5 Sept | Portsmouth Harbour 08:11 | +10 min | +11 min |
| Sat 29 Aug | Portsmouth Harbour 08:00 | 0 min | +1 min |
| Fri 28 Aug | Portsmouth Harbour 07:44 | −1 min | +2 min |
| Thu 27 Aug | Portsmouth Harbour 07:47 | +2 min | +4 min |
| Wed 26 Aug | Portsmouth Harbour 07:44 | 0 min | +6 min |
| Tue 25 Aug | Portsmouth Harbour 07:45 | 0 min | +1 min |
| Mon 24 Aug | Portsmouth Harbour 07:49 | +4 min | +7 min |
| Sat 22 Aug | Portsmouth Harbour 08:03 | +3 min | +4 min |
| Sat 15 Aug | Portsmouth Harbour 08:02 | +3 min | +3 min |
| Mon 10 Aug | Portsmouth Harbour 07:45 | 0 min | +1 min |
| Sat 8 Aug | Portsmouth Harbour 08:00 | +1 min | +2 min |
| Sat 1 Aug | Portsmouth Harbour 08:00 | 0 min | +1 min |
| Sat 25 Jul | Portsmouth Harbour 08:00 | 0 min | +2 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.