The guy who believes he was 4th has very similar numbers to you. You can't win them all. Next time you might be the right side of the split, will put in less effort as a consequence and have more go in the sprint....
When I was Cat 4 I enjoyed the racing, I could ride near the front, be there at the end usually, score at least one point. Excellent stuff. Now I'm Cat 3 I've not been able to get back to that... So don't wish it away.
(I'm very old, so you will bounce forward with vigour!)
A couple of points
- Do you know all the riders well? How do you know the top 10 all had higher FTPs than you?
- It's very easy to spend energy early on in the race and then think you lack fitness because you can't stick with it at the end. Ask yourself if you were 'dropped' in to the race at the crucial moment would you have the fitness to bridge the gap/make the move/hold on, if the answer is yes that it could be you spend to much energy early on.
- In order to win a bike race, you need to be prepared to lose it. This can be taken two ways, you need to ride in the break with a slim chance of staying away OR you need to sit in the bunch and let others close gaps for you, etc... until you are ready to make your move.