Chiltern Railways 631T51

View line Chiltern Railways

Sat Chiltern Railways

It does not run today

Last recorded run: Saturday 10 October 0 min

The mini-map returns when the train runs
On-time · 30 days
100%
4/4 runs under 3 min
RT coverage: 4 full · 0 partial · 0 no data
On-time · 90 days
73%
8/11 runs under 3 min
RT coverage: 11 full · 0 partial · 0 no data
Typical delay
−1min
Median at arrival, 90 days
P90
+22min
9 in 10 runs arrive with less than this

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 25 Jul Max en route +27 min · last fix heading to 74425 +27 min
  • Sat 1 Aug Max en route +22 min · last fix heading to 74425 +22 min
  • Sat 5 Sept Max en route +3 min · last fix heading to 74425 +3 min

Distribution · 90 days

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

  • Early 0% · 0
  • On time 73% · 8
  • 3–10 min 9% · 1
  • 10–30 min 18% · 2
  • 30+ min 0% · 0

On-time by weekday

  • — M n=0
  • — T n=0
  • — W n=0
  • — T n=0
  • — F n=0
  • 73% S n=11
  • — S n=0

Recent runs

DateLast stopFinalMax
Sat 10 OctOxford Parkway 19:120 min+3 min
Sat 3 Oct74425 19:11−1 min+1 min
Sat 26 Sept74425 19:11−1 min—
Sat 19 Sept74425 19:11−1 min+1 min
Sat 5 Sept74425 19:16+3 min+3 min
Sat 29 Aug74425 19:11−1 min+1 min
Sat 22 Aug74425 19:11−1 min+1 min
Sat 15 Aug74425 19:13+2 min+2 min
Sat 8 Aug74425 19:11−1 min+1 min
Sat 1 Aug74425 19:33+22 min+22 min
Sat 25 Jul74425 19:32+27 min+27 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.