Operator: West Midlands Trains
Previous Calling Points:
| 21:06 | London Euston | On time |
| 21:18 | Harrow & Wealdstone | On time |
| 21:23 | Bushey | On time |
| 21:27 | Watford Junction | Unknown |
| 21:32 | Kings Langley | Unknown |
| 21:06 | London Euston | On time |
| 21:18 | Harrow & Wealdstone | On time |
| 21:23 | Bushey | On time |
| 21:27 | Watford Junction | Unknown |
| 21:32 | Kings Langley | Unknown |
| 21:00 | Milton Keynes Central | On time | |
| 21:05 | Bletchley | On time | |
| 21:12 | Leighton Buzzard | On time | |
| 21:17 | Cheddington | Delayed | actual 21:19 |
| 21:23 | Tring | On time | |
| 21:28 | Berkhamsted | Unknown | |
| 21:33 | Hemel Hempstead | Unknown |
| 21:24 | London Euston | On time |
| 21:36 | Harrow & Wealdstone | Unknown |
| 21:43 | Watford Junction | Unknown |
| 21:48 | Kings Langley | Unknown |
| 21:27 | Milton Keynes Central | Unknown |
| 21:32 | Bletchley | Unknown |
| 21:39 | Leighton Buzzard | Unknown |
| 21:44 | Cheddington | Unknown |
| 21:50 | Tring | Unknown |
| 21:55 | Berkhamsted | Unknown |
| 22:00 | Hemel Hempstead | Unknown |
| 21:53 | London Euston | Unknown |
| 22:05 | Harrow & Wealdstone | Unknown |
| 22:10 | Bushey | Unknown |
| 22:13 | Watford Junction | Unknown |
| 22:18 | Kings Langley | Unknown |
| 22:09 | London Euston | Unknown |
| 22:21 | Harrow & Wealdstone | Unknown |
| 22:26 | Bushey | Unknown |
| 22:29 | Watford Junction | Unknown |
| 22:34 | Kings Langley | Unknown |
| 22:02 | Milton Keynes Central | Unknown |
| 22:07 | Bletchley | Unknown |
| 22:14 | Leighton Buzzard | Unknown |
| 22:21 | Cheddington | Unknown |
| 22:28 | Tring | Unknown |
| 22:33 | Berkhamsted | Unknown |
| 22:39 | Hemel Hempstead | Unknown |
| 22:39 | London Euston | Unknown |
| 22:52 | Harrow & Wealdstone | Unknown |
| 23:00 | Watford Junction | Unknown |
| 23:05 | Kings Langley | Unknown |