GWR 681L64

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

Running now · updated 08:47

Running now +11 min

Today it is running worse than usual: typical arrival delay is +4 min; 35% of the last 26 runs arrived on time.

On-time · 30 days
35%
9/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
36%
27/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +4 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +21 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

  • Mon 14 Sept Max en route +39 min · last fix heading to 74233 +39 min
  • Fri 28 Aug Max en route +33 min · last fix heading to 74233 +33 min
  • Sat 26 Sept Max en route +46 min · last fix heading to 73251 +30 min
  • Wed 16 Sept Max en route +27 min · last fix heading to 73251 +27 min
  • Tue 13 Oct Max en route +26 min · last fix heading to Maidenhead +25 min

Distribution · 90 days

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

  • Early 0% · 0
  • On time 36% · 27
  • 3–10 min 37% · 28
  • 10–30 min 23% · 17
  • 30+ min 4% · 3

On-time by weekday

  • 42% M n=12
  • 46% T n=13
  • 54% W n=13
  • 23% T n=13
  • 8% F n=13
  • 45% S n=11
  • — S n=0

Recent runs

DateLast stopFinalMax
Fri 16 OctMaidenhead 08:44+7 min+7 min
Thu 15 OctSlough 09:17+14 min+14 min
Wed 14 OctSlough 09:10+8 min+10 min
Tue 13 OctMaidenhead 09:28+25 min+26 min
Mon 12 OctSlough 09:12+9 min+9 min
Sat 10 OctSlough 09:08+1 min+3 min
Fri 9 OctSlough 09:030 min+2 min
Thu 8 OctSlough 09:11+8 min+8 min
Wed 7 OctSlough 09:05+2 min+10 min
Tue 6 OctMaidenhead 09:16+13 min+27 min
Mon 5 Oct73251 09:07+4 min+10 min
Sat 3 Oct73251 09:12+3 min+5 min
Fri 2 Oct73251 09:09+6 min+12 min
Thu 1 Oct73251 13:430 min+4 min
Wed 30 Sept73251 09:24+21 min+21 min
Tue 29 Sept73251 09:04+1 min+3 min
Mon 28 Sept73251 09:24+21 min+21 min
Sat 26 Sept73251 09:38+30 min+46 min
Fri 25 Sept73251 09:24+21 min+21 min
Thu 24 Sept73251 09:030 min+4 min
Wed 23 Sept75019 08:020 min+5 min
Tue 22 Sept73251 09:07+4 min+4 min
Mon 21 Sept73251 09:040 min+3 min
Sat 19 Sept73251 09:070 min+2 min
Fri 18 Sept73251 09:06+3 min+8 min
Thu 17 Sept73251 09:08+4 min+5 min
Wed 16 Sept73251 09:30+27 min+27 min
Tue 15 Sept73251 09:05+2 min+5 min
Mon 14 Sept74233 12:04+39 min+39 min
Sat 12 Sept73251 09:19+4 min+4 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.