Govia Thameslink Railway 871N20
View line Govia Thameslink Railway
Alerts for train 871N20
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
55%
16/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
64%
57/89 runs under 3 min
RT coverage: 89 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +2 min
P90
+9min
9 in 10 runs arrive with less than this
30 days: +12 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 1 Oct Max en route +27 min · last fix heading to 86513 +27 min
- Thu 10 Sept Max en route +27 min · last fix heading to Swanwick +27 min
- Thu 24 Sept Max en route +24 min · last fix heading to 86513 +23 min
- Mon 24 Aug Max en route +24 min · last fix heading to 86513 +22 min
- Mon 17 Aug Max en route +22 min · last fix heading to 86513 +20 min
Distribution · 90 days
89 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 8% · 7
- On time 56% · 50
- 3–10 min 26% · 23
- 10–30 min 10% · 9
- 30+ min 0% · 0
On-time by weekday
- 62% M n=13
- 92% T n=12
- 46% W n=13
- 31% T n=13
- 54% F n=13
- 85% S n=13
- 83% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | St Denys 11:39 | −1 min | +3 min |
| Sun 11 Oct | St Denys 16:01 | +1 min | +2 min |
| Sat 10 Oct | Ashford International 01:13 | +1 min | +1 min |
| Fri 9 Oct | St Denys 11:36 | 0 min | +2 min |
| Thu 8 Oct | Southbourne 10:55 | +14 min | +14 min |
| Wed 7 Oct | St Denys 11:46 | +6 min | +8 min |
| Tue 6 Oct | St Denys 11:42 | +2 min | +4 min |
| Mon 5 Oct | Sholing 11:39 | −1 min | +4 min |
| Sun 4 Oct | 86513 16:15 | +2 min | +2 min |
| Sat 3 Oct | 86513 11:45 | +3 min | +4 min |
| Fri 2 Oct | 86513 11:46 | +6 min | +10 min |
| Thu 1 Oct | 86513 12:07 | +27 min | +27 min |
| Wed 30 Sept | 86513 11:39 | −1 min | +3 min |
| Tue 29 Sept | 86513 11:42 | +2 min | +3 min |
| Mon 28 Sept | 86513 11:41 | +1 min | +2 min |
| Sat 26 Sept | 86513 11:43 | +2 min | +4 min |
| Fri 25 Sept | 86513 11:39 | −1 min | +3 min |
| Thu 24 Sept | 86513 12:03 | +23 min | +24 min |
| Wed 23 Sept | 86513 11:47 | +7 min | +7 min |
| Tue 22 Sept | 86513 11:42 | +2 min | +4 min |
| Mon 21 Sept | 86513 11:45 | +5 min | +7 min |
| Sun 20 Sept | 86513 15:59 | 0 min | +6 min |
| Sat 19 Sept | 86513 11:40 | −1 min | +2 min |
| Fri 18 Sept | 86513 11:47 | +7 min | +10 min |
| Thu 17 Sept | 86513 11:49 | +9 min | +9 min |
| Wed 16 Sept | 86513 11:48 | +9 min | +12 min |
| Tue 15 Sept | 86513 11:49 | +9 min | +13 min |
| Mon 14 Sept | 86513 11:41 | +2 min | +6 min |
| Sun 13 Sept | Portsmouth & Southsea 15:45 | +11 min | +15 min |
| Sat 12 Sept | Portsmouth & Southsea 11:10 | −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.