Ryan Woodruff
The three columns of intervals (SCY)here represent an A/B/C option for different levels of swimmers. Ideally, the fastest interval should push the swimmers a bit on the first 3 rounds and be a significant challenge at the end of the set. This was a good finisher for a recent practice of ours. The last set of 6 got spicy for sure.
The Swimming Wizard 
curious what type of rest you intended for them to have?
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On the fastest intervals they were having 1-2 seconds of rest and in some cases were touch-and-go.
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