Chiltern Railways 631T77
View line Chiltern Railways
Alerts for train 631T77
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.
โ Todayโs run finished
Today, last fix heading to Oxford Parkway at 01:20 โ7 min
The mini-map returns when the train runs
On-time ยท 30 days
100%
18/18 runs under 3 min
RT coverage: 18 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
89%
51/57 runs under 3 min
RT coverage: 57 full ยท 0 partial ยท 0 no data
Typical delay
โ6min
Median at arrival, 90 days
30 days: โ6 min
P90
+2min
9 in 10 runs arrive with less than this
30 days: โ3 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3โ10 min
- 10โ30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Fri 31 Jul Max en route +39 min ยท last fix heading to 74425 +26 min
- Sat 1 Aug Max en route +18 min ยท last fix heading to 74425 +14 min
- Fri 7 Aug Max en route +14 min ยท last fix heading to 74425 +9 min
- Sat 25 Jul Max en route +10 min ยท last fix heading to 74425 +6 min
- Sat 12 Sept Max en route +6 min ยท last fix heading to 74425 +3 min
Distribution ยท 90 days
57 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 77% ยท 44
- On time 12% ยท 7
- 3โ10 min 7% ยท 4
- 10โ30 min 4% ยท 2
- 30+ min 0% ยท 0
On-time by weekday
- โ M n=0
- 100% T n=11
- 100% W n=10
- 91% T n=11
- 83% F n=12
- 77% S n=13
- โ S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 13 Oct | Oxford Parkway 01:20 | โ7 min | +1 min |
| Sat 10 Oct | Oxford Parkway 01:20 | โ3 min | +1 min |
| Fri 9 Oct | Oxford Parkway 01:20 | โ6 min | +1 min |
| Thu 8 Oct | Oxford Parkway 01:21 | โ5 min | +1 min |
| Wed 7 Oct | Oxford Parkway 01:25 | โ1 min | +2 min |
| Tue 6 Oct | Oxford Parkway 01:20 | โ6 min | โ |
| Sat 3 Oct | 74425 01:20 | โ3 min | โ |
| Fri 2 Oct | 74425 01:20 | โ6 min | โ |
| Thu 1 Oct | 74425 01:20 | โ7 min | +2 min |
| Wed 30 Sept | 74425 01:20 | โ6 min | โ |
| Tue 29 Sept | 74425 01:21 | โ6 min | +2 min |
| Sat 26 Sept | 74425 01:20 | โ3 min | โ |
| Fri 25 Sept | 74425 01:20 | โ6 min | +1 min |
| Sat 19 Sept | 74425 01:19 | โ4 min | +1 min |
| Fri 18 Sept | 74425 01:20 | โ6 min | +1 min |
| Thu 17 Sept | 74425 01:20 | โ6 min | +7 min |
| Wed 16 Sept | 74425 01:20 | โ6 min | +1 min |
| Tue 15 Sept | 74425 01:21 | โ5 min | +1 min |
| Sat 12 Sept | 74425 01:26 | +3 min | +6 min |
| Fri 11 Sept | 74425 01:20 | โ6 min | +1 min |
| Thu 10 Sept | 74425 01:26 | +2 min | +3 min |
| Wed 9 Sept | 74425 01:21 | โ6 min | +1 min |
| Tue 8 Sept | 74425 01:21 | โ5 min | +2 min |
| Sat 5 Sept | 74425 01:23 | โ1 min | +1 min |
| Fri 4 Sept | 74425 01:20 | โ6 min | +3 min |
| Thu 3 Sept | 74425 01:20 | โ7 min | โ |
| Wed 2 Sept | 74425 01:20 | โ7 min | โ |
| Tue 1 Sept | 74425 01:20 | โ6 min | +1 min |
| Sat 29 Aug | 74425 01:19 | โ4 min | +2 min |
| Fri 28 Aug | 74425 01:26 | 0 min | +7 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.