5x1min/:30rest:
1: 273m, 31spm; 1:49.8/500m split
2: 261m, 29spm; 1:54.9/500m
3: 262m, 29spm; 1:54.5/500m
4: 263m, 30spm; 1:54.0/500m
5: 264m, 30spm; 1:53.6/500m
peak heart rate: 163