That's pretty fluid. First thing is what priority the race is if you're doing A/B/C races. If it's a "C" race coach might use it to do the final bustup.

If it's an "A" or "B" race he/she should have this nailed down within a couple of tries. You should feel at least rested.

Thing is, as you get stronger and your workouts get more difficult/longer, you might run into more fatigue than planned.

But if you're going into targeted races feeling like poo all the time either you're not letting him know how tired you are, or he's not listening, and you need to fix that.