Row Intervals 
100 Strokes* @20 
100 Strokes* @24
100 Strokes* @28
100 Strokes* @20/@24/@28
*Accumulating 100 strokes by 3 Rounds of 10 easy, 10 moderate, 10 hard; finish out the last 10 strokes easy. 

There is one-minute rest period between each 100 strokes interval. Final 10 strokes of the last interval were done at a HARD r32. This is the DH version of ATFS Workout 65.