Govia Thameslink Railway 871Z42
View line Govia Thameslink Railway
Alerts for train 871Z42
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Govia Thameslink Railway.
The mini-map returns when the train runs
On-time · 30 days
—
Too little data (2/2 runs with data)
RT coverage: 2 full · 0 partial · 0 no data
On-time · 90 days
30%
3/10 runs under 3 min
RT coverage: 10 full · 0 partial · 0 no data
Typical delay
+6min
Median at arrival, 90 days
P90
+22min
9 in 10 runs arrive with less than this
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
- Sun 6 Sept Max en route +40 min · last fix heading to Hastings +39 min
- Sun 25 Oct Max en route +23 min · last fix heading to Portsmouth Harbour +20 min
- Thu 27 Aug Max en route +19 min · last fix heading to East Grinstead +19 min
- Sat 10 Oct Max en route +12 min · last fix heading to West St Leonards +11 min
- Sun 20 Sept Max en route +14 min · last fix heading to Portsmouth Harbour +8 min
Distribution · 90 days
10 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 30% · 3
- 3–10 min 30% · 3
- 10–30 min 30% · 3
- 30+ min 10% · 1
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- 0% T n=1
- — F n=0
- 33% S n=3
- 33% S n=6
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 25 Oct | Portsmouth Harbour 18:23 | +20 min | +23 min |
| Sat 10 Oct | West St Leonards 17:01 | +11 min | +12 min |
| Sun 20 Sept | Portsmouth Harbour 19:01 | +8 min | +14 min |
| Sat 19 Sept | Portsmouth Harbour 19:33 | +3 min | +16 min |
| Sun 13 Sept | Portsmouth Harbour 19:03 | −1 min | +10 min |
| Sat 12 Sept | Portsmouth Harbour 19:28 | −1 min | +4 min |
| Sun 6 Sept | Hastings 18:27 | +39 min | +40 min |
| Thu 27 Aug | East Grinstead 12:58 | +19 min | +19 min |
| Sun 16 Aug | Hastings 16:40 | +3 min | +4 min |
| Sun 9 Aug | Hastings 16:38 | 0 min | +2 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.