Chiltern Railways 631T23
View line Chiltern Railways
Alerts for train 631T23
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
79%
23/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
71%
61/86 runs under 3 min
RT coverage: 86 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+7min
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
- Wed 19 Aug Max en route +26 min · last fix heading to 74425 +26 min
- Mon 14 Sept Max en route +19 min · last fix heading to 74425 +17 min
- Wed 2 Sept Max en route +17 min · last fix heading to 74425 +17 min
- Tue 22 Sept Max en route +17 min · last fix heading to 74425 +16 min
- Thu 24 Sept Max en route +13 min · last fix heading to 74425 +13 min
Distribution · 90 days
86 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 71% · 61
- 3–10 min 23% · 20
- 10–30 min 6% · 5
- 30+ min 0% · 0
On-time by weekday
- 50% M n=12
- 62% T n=13
- 62% W n=13
- 50% T n=12
- 85% F n=13
- 92% S n=12
- 100% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | Oxford Parkway 12:04 | −1 min | +1 min |
| Fri 6 Nov | Oxford Parkway 11:59 | +1 min | +2 min |
| Thu 5 Nov | Oxford Parkway 11:58 | 0 min | — |
| Wed 4 Nov | Oxford Parkway 11:59 | +1 min | +2 min |
| Tue 3 Nov | Oxford Parkway 11:58 | 0 min | +2 min |
| Mon 2 Nov | Oxford Parkway 12:03 | +5 min | +6 min |
| Sun 1 Nov | Oxford Parkway 12:13 | −1 min | — |
| Sat 31 Oct | Oxford Parkway 12:13 | 0 min | — |
| Fri 30 Oct | Oxford Parkway 12:06 | 0 min | +2 min |
| Thu 29 Oct | Oxford Parkway 12:07 | +1 min | +3 min |
| Wed 28 Oct | Oxford Parkway 12:09 | +3 min | +4 min |
| Tue 27 Oct | Oxford Parkway 12:08 | +2 min | +3 min |
| Mon 26 Oct | Oxford Parkway 12:08 | +2 min | +3 min |
| Sun 25 Oct | Oxford Parkway 12:14 | 0 min | — |
| Sat 24 Oct | Oxford Parkway 12:14 | +1 min | +1 min |
| Fri 23 Oct | Oxford Parkway 12:11 | +5 min | +7 min |
| Thu 22 Oct | Oxford Parkway 12:10 | +4 min | +5 min |
| Wed 21 Oct | Oxford Parkway 12:12 | +6 min | +7 min |
| Tue 20 Oct | Oxford Parkway 12:06 | 0 min | +1 min |
| Mon 19 Oct | Oxford Parkway 12:15 | +9 min | +9 min |
| Sun 18 Oct | Oxford Parkway 12:13 | −1 min | — |
| Sat 17 Oct | Oxford Parkway 12:13 | 0 min | +1 min |
| Fri 16 Oct | Oxford Parkway 12:06 | 0 min | +1 min |
| Thu 15 Oct | Oxford Parkway 12:06 | 0 min | +1 min |
| Wed 14 Oct | Oxford Parkway 12:06 | +1 min | +2 min |
| Tue 13 Oct | Oxford Parkway 12:06 | 0 min | +3 min |
| Mon 12 Oct | Oxford Parkway 12:06 | 0 min | +1 min |
| Sun 11 Oct | Oxford Parkway 12:14 | 0 min | +3 min |
| Sat 10 Oct | Oxford Parkway 12:12 | −1 min | +1 min |
| Fri 9 Oct | Oxford Parkway 12:06 | 0 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.