Reply To: Resting for meets
Yes, I do think :45 would be too little rest.
I had gotten to the point where I was able to get well into the twenties before first failure consistently at a target time of :32 on the :50. I dropped it down to :31 and on a good day I can get in ten before first failure. There is a big difference for me between :31 and :32 on the :50. I suspect your swimmers would be the same way at some target time.
One thing I still do is go back to :32 on the :50 every so often. First that gives me more total race pace 50s and second it helps my confidence in being able to do 24 or 26 before first failure. Then I’ll go back to a target time of :31 on the :50 with feeling like I can move that first failure to # 11 or 12.