GWR 791L28

View line GWR

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

✓ Today’s run finished

Today, last fix heading to Slough at 19:31 +8 min

The mini-map returns when the train runs
On-time · 30 days
71%
17/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
49%
33/67 runs under 3 min
RT coverage: 67 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +2 min
P90
+19min
9 in 10 runs arrive with less than this
30 days: +9 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

  • Tue 11 Aug Max en route +36 min · last fix heading to 73251 +36 min
  • Tue 4 Aug Max en route +38 min · last fix heading to 73251 +30 min
  • Mon 17 Aug Max en route +27 min · last fix heading to 73251 +27 min
  • Thu 27 Aug Max en route +23 min · last fix heading to 73251 +23 min
  • Mon 14 Sept Max en route +21 min · last fix heading to 73251 +21 min

Distribution · 90 days

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

  • Early 3% · 2
  • On time 46% · 31
  • 3–10 min 22% · 15
  • 10–30 min 25% · 17
  • 30+ min 3% · 2

On-time by weekday

  • 33% M n=12
  • 67% T n=12
  • 31% W n=13
  • 46% T n=13
  • 62% F n=13
  • 75% S n=4
  • — S n=0

Recent runs

DateLast stopFinalMax
Mon 19 OctSlough 19:31+8 min+8 min
Sat 17 OctMaidenhead 19:23+2 min+5 min
Fri 16 OctSlough 19:25+2 min+3 min
Thu 15 Oct— 16:58−1 min—
Wed 14 OctSlough 19:29+6 min+6 min
Tue 13 OctMaidenhead 19:23−1 min+1 min
Mon 12 OctSlough 19:33+10 min+10 min
Sat 10 OctSlough 19:25+2 min+3 min
Fri 9 OctMaidenhead 19:24+1 min+3 min
Thu 8 OctMaidenhead 19:26+3 min+3 min
Wed 7 OctSlough 19:24+1 min+6 min
Tue 6 OctSlough 19:24+1 min+2 min
Mon 5 OctMaidenhead 19:23+1 min+1 min
Fri 2 Oct73251 19:21−1 min+2 min
Thu 1 Oct73251 19:24+1 min+4 min
Wed 30 Sept73251 19:24+1 min+5 min
Tue 29 Sept73251 19:25+2 min+4 min
Mon 28 Sept73251 19:21−2 min+5 min
Sat 26 Sept73251 19:23+2 min+4 min
Fri 25 Sept73251 19:43+20 min+20 min
Thu 24 Sept73251 19:33+10 min+10 min
Wed 23 Sept81107 18:19+4 min+4 min
Tue 22 Sept81107 18:01−1 min+1 min
Mon 21 Sept73251 19:25+2 min+3 min
Sat 19 Sept73251 19:25+4 min+13 min
Fri 18 Sept73251 19:25+2 min+3 min
Thu 17 Sept73251 19:22−1 min+1 min
Wed 16 Sept73251 19:38+15 min+15 min
Tue 15 Sept73251 19:28+5 min+6 min
Mon 14 Sept73251 19:45+21 min+21 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.