Tight and painful calves after run

Hello BT,

Happened to me a couple of years ago, when I started training and since then I have been very careful to foamroll/stretch/massage and all that and it has worked well.
I have been training more seriously and often this year and haven't had a problem.... until now.

Last week after a 5k at a record pace for me, the pain came back in both calves. Next day was a brick scheduled. Got through it but could not walk without pain after that. Stopped running (no problems biking or swimming) for a few days and increased the foam Rolling, etc. Pain disappeared in 2 days Yesterday I tried running again and I could feel the tightness and slight discomfort after only 10 minutes. I stopped running for fear of hurting myself.

What do I do? race is in 10 days (sprint). Do I stop running until then or will it be better if I run?

The pain is not that great and I am sure I could get through a 5k without having to slow down too much, I am quite happy to do that during the race and have to rest after but I don't want to make it worse before the race.

any advice?