I wasn't able to join in the race because I was no tired from all the running.
Does "join in the race" sound right to you in the above? Thanks.
The sentence does not make a great deal of sense.
I wasn't able to join in the race as I was exhausted from/after the previous event.
What I was trying to indicate was that if you have been running, you must already be in the race. So if you are not able to join the race, you must have been taking part in events before the race.