Chiltern Railways 631G51
View line Chiltern Railways
Alerts for train 631G51
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Chiltern Railways.
The mini-map returns when the train runs
On-time · 30 days
71%
15/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
63%
38/60 runs under 3 min
RT coverage: 60 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+10min
9 in 10 runs arrive with less than this
30 days: +7 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
- Mon 17 Aug Max en route +44 min · last fix heading to Birmingham Snow Hill +43 min
- Mon 10 Aug Max en route +32 min · last fix heading to Birmingham Snow Hill +26 min
- Tue 8 Sept Max en route +24 min · last fix heading to Birmingham Snow Hill +23 min
- Fri 28 Aug Max en route +24 min · last fix heading to Birmingham Snow Hill +23 min
- Tue 29 Sept Max en route +21 min · last fix heading to Birmingham Snow Hill +11 min
Distribution · 90 days
60 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 8% · 5
- On time 55% · 33
- 3–10 min 25% · 15
- 10–30 min 10% · 6
- 30+ min 2% · 1
On-time by weekday
- 50% M n=12
- 77% T n=13
- 85% W n=13
- 64% T n=11
- 36% F n=11
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 14 Oct | Tyseley 19:47 | 0 min | +3 min |
| Tue 13 Oct | Birmingham Snow Hill 19:46 | −1 min | +3 min |
| Mon 12 Oct | Birmingham Snow Hill 19:46 | −1 min | +2 min |
| Fri 9 Oct | Tyseley 19:47 | 0 min | +3 min |
| Thu 8 Oct | Birmingham Snow Hill 19:57 | +10 min | +11 min |
| Wed 7 Oct | Birmingham Snow Hill 19:45 | −2 min | — |
| Tue 6 Oct | Tyseley 19:47 | 0 min | +4 min |
| Mon 5 Oct | Birmingham Snow Hill 19:46 | −1 min | +3 min |
| Fri 2 Oct | Birmingham Snow Hill 19:51 | +4 min | +8 min |
| Thu 1 Oct | Birmingham Snow Hill 19:48 | 0 min | +3 min |
| Wed 30 Sept | Birmingham Snow Hill 19:46 | 0 min | +4 min |
| Tue 29 Sept | Birmingham Snow Hill 19:58 | +11 min | +21 min |
| Mon 28 Sept | Birmingham Snow Hill 19:50 | +3 min | +7 min |
| Fri 25 Sept | Birmingham Snow Hill 19:46 | −1 min | +1 min |
| Thu 24 Sept | Birmingham Snow Hill 19:54 | +7 min | +10 min |
| Wed 23 Sept | Birmingham Snow Hill 19:45 | −2 min | +1 min |
| Tue 22 Sept | Birmingham Snow Hill 19:45 | −2 min | +2 min |
| Mon 21 Sept | Birmingham Snow Hill 19:53 | +6 min | +8 min |
| Fri 18 Sept | Birmingham Snow Hill 19:45 | −1 min | +1 min |
| Thu 17 Sept | Birmingham Snow Hill 19:46 | −1 min | +3 min |
| Wed 16 Sept | Birmingham Snow Hill 19:46 | −1 min | +3 min |
| Tue 15 Sept | Birmingham Snow Hill 19:51 | +5 min | +7 min |
| Mon 14 Sept | Birmingham Snow Hill 19:46 | −1 min | +2 min |
| Fri 11 Sept | Birmingham Snow Hill 19:55 | +7 min | +12 min |
| Thu 10 Sept | Birmingham Snow Hill 19:51 | +4 min | +7 min |
| Wed 9 Sept | Birmingham Snow Hill 19:58 | +11 min | +12 min |
| Tue 8 Sept | Birmingham Snow Hill 20:10 | +23 min | +24 min |
| Mon 7 Sept | Birmingham Snow Hill 19:54 | +7 min | +7 min |
| Fri 4 Sept | Birmingham Snow Hill 19:54 | +7 min | +10 min |
| Thu 3 Sept | Birmingham Snow Hill 19:46 | −1 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.