GWR 771L25

View line GWR

Mon, Tue, Wed, Thu, Fri GWR

It does not run today

Last recorded run: Friday 23 October +22 min

The mini-map returns when the train runs
On-time · 30 days
55%
11/20 runs under 3 min
RT coverage: 20 full · 0 partial · 0 no data
On-time · 90 days
27%
14/51 runs under 3 min
RT coverage: 51 full · 0 partial · 0 no data
Typical delay
+6min
Median at arrival, 90 days
30 days: +2 min
P90
+16min
9 in 10 runs arrive with less than this
30 days: +11 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

  • Fri 23 Oct Max en route +22 min · last fix heading to Slough +22 min
  • Wed 14 Oct Max en route +22 min · last fix heading to Slough +22 min
  • Fri 28 Aug Max en route +21 min · last fix heading to 73251 +21 min
  • Fri 14 Aug Max en route +20 min · last fix heading to 73251 +20 min
  • Tue 25 Aug Max en route +17 min · last fix heading to 73251 +16 min

Distribution · 90 days

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

  • Early 2% · 1
  • On time 25% · 13
  • 3–10 min 43% · 22
  • 10–30 min 29% · 15
  • 30+ min 0% · 0

On-time by weekday

  • 11% M n=9
  • 36% T n=11
  • 44% W n=9
  • 18% T n=11
  • 27% F n=11
  • — S n=0
  • — S n=0

Recent runs

DateLast stopFinalMax
Fri 23 OctSlough 18:14+22 min+22 min
Thu 22 OctSlough 18:01+9 min+9 min
Wed 21 OctMaidenhead 17:54+2 min+4 min
Tue 20 OctSlough 17:53+1 min+4 min
Mon 19 OctMaidenhead 18:00+8 min+10 min
Fri 16 OctSlough 17:520 min+2 min
Thu 15 OctMaidenhead 17:59+7 min+8 min
Wed 14 OctSlough 18:15+22 min+22 min
Tue 13 OctMaidenhead 17:51−1 min+2 min
Mon 12 OctMaidenhead 17:56+4 min+5 min
Fri 9 OctMaidenhead 17:58+6 min+7 min
Thu 8 OctMaidenhead 17:58+6 min+6 min
Wed 7 OctSlough 17:53+1 min+4 min
Tue 6 OctSlough 17:54+2 min+3 min
Mon 5 OctSlough 18:02+10 min+11 min
Fri 2 Oct73251 17:520 min+5 min
Thu 1 Oct73251 17:50−2 min+1 min
Wed 30 Sept73251 17:51−1 min+1 min
Tue 29 Sept73251 17:520 min+1 min
Mon 28 Sept73251 17:54+2 min+2 min
Fri 25 Sept73251 17:56+3 min+4 min
Thu 24 Sept73251 18:00+8 min+16 min
Tue 22 Sept73251 17:55+3 min+3 min
Mon 21 Sept73251 17:57+5 min+6 min
Fri 18 Sept73251 17:54+2 min+3 min
Thu 17 Sept73251 17:58+6 min+6 min
Wed 16 Sept73251 17:56+3 min+4 min
Tue 15 Sept73251 18:02+11 min+11 min
Fri 11 Sept73251 17:58+5 min+5 min
Thu 10 Sept73251 18:02+10 min+10 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.