Govia Thameslink Railway 861N21
View line Govia Thameslink Railway
Alerts for train 861N21
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
58%
15/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
56%
48/86 runs under 3 min
RT coverage: 86 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +2 min
P90
+9min
9 in 10 runs arrive with less than this
30 days: +14 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 8 Oct Max en route +26 min · last fix heading to Brighton +22 min
- Thu 24 Sept Max en route +32 min · last fix heading to Brighton +21 min
- Fri 2 Oct Max en route +17 min · last fix heading to Ford +17 min
- Sat 29 Aug Max en route +17 min · last fix heading to Brighton +15 min
- Thu 20 Aug Max en route +17 min · last fix heading to Brighton +15 min
Distribution · 90 days
86 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 6% · 5
- On time 50% · 43
- 3–10 min 35% · 30
- 10–30 min 9% · 8
- 30+ min 0% · 0
On-time by weekday
- 62% M n=13
- 69% T n=13
- 75% W n=12
- 25% T n=12
- 42% F n=12
- 25% S n=12
- 92% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Brighton 12:15 | +2 min | +6 min |
| Mon 19 Oct | Ford 11:29 | 0 min | +1 min |
| Sun 18 Oct | Brighton 14:30 | +1 min | +1 min |
| Sat 17 Oct | Hove 12:21 | +8 min | +14 min |
| Thu 15 Oct | Brighton 12:22 | +9 min | +10 min |
| Wed 14 Oct | Hove 12:17 | +4 min | +15 min |
| Tue 13 Oct | Brighton 12:12 | −2 min | +3 min |
| Mon 12 Oct | Brighton 12:20 | +6 min | +7 min |
| Sun 11 Oct | Hove 14:28 | −1 min | +1 min |
| Fri 9 Oct | Brighton 12:14 | +1 min | +3 min |
| Thu 8 Oct | Brighton 12:35 | +22 min | +26 min |
| Wed 7 Oct | Brighton 12:11 | −2 min | +3 min |
| Tue 6 Oct | Brighton 12:12 | −1 min | +3 min |
| Mon 5 Oct | Brighton 12:15 | +2 min | +6 min |
| Sun 4 Oct | Brighton 14:31 | +1 min | +2 min |
| Sat 3 Oct | Brighton 12:14 | +1 min | +4 min |
| Fri 2 Oct | Ford 11:47 | +17 min | +17 min |
| Thu 1 Oct | Brighton 12:21 | +8 min | +10 min |
| Wed 30 Sept | Brighton 12:14 | +1 min | +3 min |
| Tue 29 Sept | Brighton 12:11 | −2 min | +3 min |
| Mon 28 Sept | Brighton 12:16 | +2 min | +9 min |
| Sat 26 Sept | Brighton 12:23 | +10 min | +11 min |
| Fri 25 Sept | Brighton 12:17 | +4 min | +15 min |
| Thu 24 Sept | Brighton 12:35 | +21 min | +32 min |
| Wed 23 Sept | Brighton 12:13 | 0 min | +4 min |
| Tue 22 Sept | Brighton 12:17 | +4 min | +5 min |
| Mon 21 Sept | Brighton 12:16 | +3 min | +8 min |
| Sun 20 Sept | Brighton 14:30 | +1 min | +2 min |
| Sat 19 Sept | Brighton 12:14 | +1 min | +2 min |
| Fri 18 Sept | Brighton 12:14 | +1 min | +11 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.