GWR 771F21

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

Running now · updated 16:45

Running now +12 min

Today it is running worse than usual: typical arrival delay is +10 min; 16% of the last 25 runs arrived on time.

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On-time · 30 days
16%
4/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
14%
10/73 runs under 3 min
RT coverage: 73 full · 0 partial · 0 no data
Typical delay
+9min
Median at arrival, 90 days
30 days: +10 min
P90
+23min
9 in 10 runs arrive with less than this
30 days: +29 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

  • Thu 29 Oct Max en route +43 min · last fix heading to Portsmouth Harbour +43 min
  • Fri 2 Oct Max en route +41 min · last fix heading to Portsmouth & Southsea +41 min
  • Mon 17 Aug Max en route +35 min · last fix heading to 86116 +34 min
  • Sat 17 Oct Max en route +30 min · last fix heading to Warminster +30 min
  • Mon 12 Oct Max en route +31 min · last fix heading to Portsmouth Harbour +30 min

Distribution · 90 days

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

  • Early 0% · 0
  • On time 14% · 10
  • 3–10 min 41% · 30
  • 10–30 min 38% · 28
  • 30+ min 7% · 5

On-time by weekday

  • 15% M n=13
  • 17% T n=12
  • 17% W n=12
  • 0% T n=11
  • 0% F n=12
  • 31% S n=13
  • — S n=0

Recent runs

DateLast stopFinalMax
Mon 2 NovWarminster 16:24+3 min+3 min
Sat 31 OctPortsmouth Harbour 18:07+8 min+8 min
Fri 30 OctPortsmouth & Southsea 18:08+6 min+9 min
Thu 29 OctPortsmouth Harbour 18:45+43 min+43 min
Wed 28 OctFilton Abbey Wood 15:330 min+2 min
Tue 27 OctPatchway 15:32−1 min+1 min
Mon 26 OctLawrence Hill 15:34+2 min+3 min
Sat 24 OctPortsmouth Harbour 18:05+5 min+9 min
Fri 23 OctFilton Abbey Wood 15:30+4 min+4 min
Thu 22 OctPortsmouth Harbour 18:12+10 min+12 min
Wed 21 OctPortsmouth Harbour 18:14+12 min+12 min
Tue 20 OctPortsmouth Harbour 18:15+13 min+14 min
Mon 19 OctPortsmouth Harbour 18:15+13 min+14 min
Sat 17 OctWarminster 16:40+30 min+30 min
Fri 16 OctPortsmouth Harbour 18:22+20 min+20 min
Thu 15 OctPortsmouth Harbour 18:29+27 min+30 min
Wed 14 OctPortsmouth Harbour 18:12+11 min+12 min
Tue 13 OctPortsmouth Harbour 18:12+10 min+11 min
Mon 12 OctPortsmouth Harbour 18:31+30 min+31 min
Sat 10 OctWarminster 16:18−1 min—
Fri 9 OctPortsmouth Harbour 18:13+12 min+12 min
Thu 8 OctPortsmouth Harbour 18:18+16 min+17 min
Wed 7 OctPortsmouth Harbour 18:12+13 min+14 min
Tue 6 OctPortsmouth Harbour 18:07+5 min+10 min
Mon 5 OctPortsmouth Harbour 18:03+10 min+10 min
Sat 3 OctFareham 17:47+12 min+12 min
Fri 2 OctPortsmouth & Southsea 18:33+41 min+41 min
Thu 1 OctPortsmouth Harbour 18:15+13 min+15 min
Wed 30 SeptPortsmouth Harbour 18:29+27 min+29 min
Tue 29 SeptPortsmouth Harbour 18:15+14 min+16 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.