Richard,
When you do a revision (HITMO), be careful not to tick any extra punches on S1. In the case of: Storthes Hall Long, you ran back near the Start 16 seconds before you punched Finish. This shows in the list of punches you can tick in HITMO. If you tick this as a valid punch in HITMO, then that will be taken as your start time.... ie you only ran for 16 secs.
You could try another revision.
Let me know if you still have issues.
Peter