GWR 791L09

View line GWR

Mon, Tue, Wed, Thu, Fri, Sat GWR

It does not run today

Last recorded run: Friday 16 October +30 min

The mini-map returns when the train runs
On-time · 30 days
33%
7/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
24%
15/62 runs under 3 min
RT coverage: 62 full · 0 partial · 0 no data
Typical delay
+8min
Median at arrival, 90 days
30 days: +7 min
P90
+28min
9 in 10 runs arrive with less than this
30 days: +30 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

  • Sat 3 Oct Max en route +49 min · last fix heading to 74233 +49 min
  • Sat 22 Aug Max en route +45 min · last fix heading to 73251 +45 min
  • Mon 3 Aug Max en route +41 min · last fix heading to 73251 +39 min
  • Wed 14 Oct Max en route +37 min · last fix heading to Slough +37 min
  • Tue 4 Aug Max en route +32 min · last fix heading to 73251 +32 min

Distribution · 90 days

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

  • Early 2% · 1
  • On time 23% · 14
  • 3–10 min 39% · 24
  • 10–30 min 27% · 17
  • 30+ min 10% · 6

On-time by weekday

  • 27% M n=11
  • 27% T n=11
  • 10% W n=10
  • 18% T n=11
  • 18% F n=11
  • 50% S n=8
  • — S n=0

Recent runs

DateLast stopFinalMax
Fri 16 OctMaidenhead 10:22+30 min+30 min
Thu 15 OctSlough 10:06+13 min+13 min
Wed 14 OctSlough 10:29+37 min+37 min
Tue 13 OctSlough 10:00+8 min+8 min
Mon 12 OctMaidenhead 09:520 min+3 min
Sat 10 OctMaidenhead 09:58+1 min+1 min
Fri 9 OctSlough 09:56+4 min+4 min
Thu 8 OctSlough 09:57+5 min+5 min
Wed 7 OctMaidenhead 10:04+11 min+11 min
Tue 6 OctMaidenhead 10:01+9 min+9 min
Mon 5 Oct73251 09:53+1 min+7 min
Sat 3 Oct74233 10:16+49 min+49 min
Fri 2 Oct73251 09:53+1 min+3 min
Thu 1 Oct73251 09:53+1 min+6 min
Wed 30 Sept73251 10:07+15 min+15 min
Tue 29 Sept73251 09:53+1 min+5 min
Mon 28 Sept73251 10:08+15 min+15 min
Fri 25 Sept73251 09:59+7 min+10 min
Thu 24 Sept73251 10:09+17 min+17 min
Tue 22 Sept73251 09:53+1 min+8 min
Mon 21 Sept73251 09:55+3 min+6 min
Fri 18 Sept73251 10:00+8 min+12 min
Thu 17 Sept73251 10:01+9 min+9 min
Wed 16 Sept74233 09:34+10 min+10 min
Tue 15 Sept73251 09:53+1 min+3 min
Mon 14 Sept81107 09:02+28 min+29 min
Sat 12 Sept73251 10:03+1 min+4 min
Fri 11 Sept73251 10:01+9 min+10 min
Thu 10 Sept73251 09:55+3 min+4 min
Wed 9 Sept73251 09:54+2 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.