GWR 791L34

View line GWR

Sat, Sun GWR

It does not run today

Last recorded run: Sunday 1 November +3 min

The mini-map returns when the train runs
On-time · 30 days
17%
1/6 runs under 3 min
RT coverage: 6 full · 0 partial · 0 no data
On-time · 90 days
22%
4/18 runs under 3 min
RT coverage: 18 full · 0 partial · 0 no data
Typical delay
+6min
Median at arrival, 90 days
30 days: +5 min
P90
+37min
9 in 10 runs arrive with less than this
30 days: +42 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 5 Sept Max en route +62 min · last fix heading to 73251 +62 min
  • Sat 24 Oct Max en route +54 min · last fix heading to Maidenhead +53 min
  • Sat 17 Oct Max en route +31 min · last fix heading to Slough +30 min
  • Sat 26 Sept Max en route +23 min · last fix heading to 73251 +23 min
  • Sat 29 Aug Max en route +17 min · last fix heading to 73251 +17 min

Distribution · 90 days

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

  • Early 6% · 1
  • On time 17% · 3
  • 3–10 min 44% · 8
  • 10–30 min 17% · 3
  • 30+ min 17% · 3

On-time by weekday

  • — M n=0
  • — T n=0
  • — W n=0
  • — T n=0
  • — F n=0
  • 25% S n=12
  • 17% S n=6

Recent runs

DateLast stopFinalMax
Sun 1 NovSlough 11:39+3 min+3 min
Sat 31 OctSlough 23:04−3 min+5 min
Sat 24 OctMaidenhead 23:15+53 min+54 min
Sat 17 OctSlough 22:52+30 min+31 min
Sun 11 OctSlough 11:02+3 min+4 min
Sat 10 OctSlough 22:28+6 min+6 min
Sun 4 Oct73251 11:05+4 min+5 min
Sat 3 Oct73251 22:220 min+4 min
Sat 26 Sept73251 22:46+23 min+23 min
Sat 19 Sept73251 22:31+9 min+9 min
Sat 12 Sept73251 22:37+9 min+9 min
Sun 6 Sept73251 11:18+11 min+11 min
Sat 5 Sept73251 23:32+62 min+62 min
Sat 29 Aug73251 22:39+17 min+17 min
Sun 23 Aug73251 11:020 min+3 min
Sat 22 Aug73251 22:23+1 min+4 min
Sun 16 Aug73251 11:06+4 min+9 min
Sat 15 Aug73251 22:27+5 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.