Govia Thameslink Railway 871R20
View line Govia Thameslink Railway
Alerts for train 871R20
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
85%
22/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
84%
71/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: 0 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +3 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 4 Aug Max en route +33 min · last fix heading to Reigate +30 min
- Fri 4 Sept Max en route +12 min · last fix heading to Reigate +12 min
- Sat 22 Aug Max en route +8 min · last fix heading to Reigate +8 min
- Thu 24 Sept Max en route +8 min · last fix heading to Reigate +7 min
- Fri 2 Oct Max en route +7 min · last fix heading to Reigate +6 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 7% · 6
- On time 76% · 65
- 3–10 min 14% · 12
- 10–30 min 1% · 1
- 30+ min 1% · 1
On-time by weekday
- 92% M n=12
- 82% T n=11
- 73% W n=11
- 69% T n=13
- 85% F n=13
- 92% S n=13
- 92% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 19 Oct | Reigate 11:02 | −1 min | +3 min |
| Sun 18 Oct | Reigate 10:27 | 0 min | — |
| Sat 17 Oct | Reigate 11:06 | +1 min | +2 min |
| Fri 16 Oct | Reigate 11:02 | −1 min | +5 min |
| Thu 15 Oct | Reigate 11:04 | +1 min | +3 min |
| Wed 14 Oct | Reigate 11:05 | +3 min | +4 min |
| Mon 12 Oct | Reigate 11:05 | +2 min | +3 min |
| Sun 11 Oct | — 10:58 | 0 min | — |
| Sat 10 Oct | Reigate 11:01 | −1 min | +3 min |
| Fri 9 Oct | Reigate 11:03 | 0 min | +1 min |
| Thu 8 Oct | Reigate 11:05 | +2 min | +3 min |
| Wed 7 Oct | Reigate 11:06 | +3 min | +5 min |
| Tue 6 Oct | Reigate 11:05 | +2 min | +3 min |
| Mon 5 Oct | Reigate 11:04 | +1 min | +2 min |
| Sun 4 Oct | Reigate 10:58 | −1 min | — |
| Sat 3 Oct | Reigate 11:03 | 0 min | +2 min |
| Fri 2 Oct | Reigate 11:09 | +6 min | +7 min |
| Thu 1 Oct | Reigate 11:01 | −2 min | — |
| Wed 30 Sept | Reigate 11:05 | +2 min | +4 min |
| Tue 29 Sept | Reigate 11:05 | +2 min | +3 min |
| Sun 27 Sept | Reigate 10:57 | −2 min | — |
| Sat 26 Sept | Reigate 11:02 | −1 min | — |
| Fri 25 Sept | Reigate 11:03 | 0 min | +1 min |
| Thu 24 Sept | Reigate 11:10 | +7 min | +8 min |
| Tue 22 Sept | Reigate 11:02 | −1 min | — |
| Mon 21 Sept | Reigate 11:02 | −1 min | +1 min |
| Sun 20 Sept | Reigate 10:58 | −1 min | +4 min |
| Sat 19 Sept | Reigate 11:04 | +1 min | +1 min |
| Fri 18 Sept | Reigate 11:04 | +1 min | +2 min |
| Thu 17 Sept | Reigate 11:07 | +4 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.