Chiltern Railways 631T77

View line Chiltern Railways

Tue, Wed, Thu, Fri, Sat Chiltern Railways

It does not run today

Last recorded run: Saturday 31 October โˆ’4 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
98%
52/53 runs under 3 min
RT coverage: 53 full ยท 0 partial ยท 0 no data
Typical delay
โˆ’6min
Median at arrival, 90 days
30 days: โˆ’6 min
P90
โˆ’1min
9 in 10 runs arrive with less than this
30 days: โˆ’3 min

Last 30 days

Delay at the end of each run, in minutes. One bar per run.

  • On time (<3 min)
  • 3โ€“10 min
  • 10โ€“30 min
  • 30+ min
  • Partial coverage
  • No data

Worst days

  • Sat 12 Sept Max en route +6 min ยท last fix heading to 74425 +3 min

Distribution ยท 90 days

53 runs with a known final delay. On time = under 3 min, the same cut the map uses.

  • Early 83% ยท 44
  • On time 15% ยท 8
  • 3โ€“10 min 2% ยท 1
  • 10โ€“30 min 0% ยท 0
  • 30+ min 0% ยท 0

On-time by weekday

  • โ€” M n=0
  • 100% T n=10
  • 100% W n=10
  • 100% T n=10
  • 100% F n=11
  • 92% S n=12
  • โ€” S n=0

Recent runs

DateLast stopFinalMax
Sat 31 OctOxford Parkway 01:19โˆ’4 minโ€”
Fri 30 OctOxford Parkway 01:20โˆ’6 minโ€”
Thu 29 OctOxford Parkway 01:20โˆ’6 min+1 min
Wed 28 OctOxford Parkway 01:20โˆ’7 minโ€”
Tue 27 OctOxford Parkway 01:19โˆ’7 minโ€”
Sat 24 OctOxford Parkway 01:20โˆ’3 min+1 min
Fri 23 OctOxford Parkway 01:25โˆ’1 minโ€”
Thu 22 OctOxford Parkway 01:20โˆ’6 minโ€”
Wed 21 OctOxford Parkway 01:20โˆ’6 minโ€”
Tue 20 OctOxford Parkway 01:20โˆ’6 minโ€”
Sat 17 OctOxford Parkway 01:20โˆ’3 minโ€”
Fri 16 OctOxford Parkway 01:19โˆ’7 min+1 min
Thu 15 OctOxford Parkway 01:20โˆ’6 min+1 min
Wed 14 OctOxford Parkway 01:20โˆ’7 minโ€”
Tue 13 OctOxford Parkway 01:20โˆ’7 min+1 min
Sat 10 OctOxford Parkway 01:20โˆ’3 min+1 min
Fri 9 OctOxford Parkway 01:20โˆ’6 min+1 min
Thu 8 OctOxford Parkway 01:21โˆ’5 min+1 min
Wed 7 OctOxford Parkway 01:25โˆ’1 min+2 min
Tue 6 OctOxford Parkway 01:20โˆ’6 minโ€”
Sat 3 Oct74425 01:20โˆ’3 minโ€”
Fri 2 Oct74425 01:20โˆ’6 minโ€”
Thu 1 Oct74425 01:20โˆ’7 min+2 min
Wed 30 Sept74425 01:20โˆ’6 minโ€”
Tue 29 Sept74425 01:21โˆ’6 min+2 min
Sat 26 Sept74425 01:20โˆ’3 minโ€”
Fri 25 Sept74425 01:20โˆ’6 min+1 min
Sat 19 Sept74425 01:19โˆ’4 min+1 min
Fri 18 Sept74425 01:20โˆ’6 min+1 min
Thu 17 Sept74425 01:20โˆ’6 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.