Warm up
400 swim, 400 pull, 200 kick
18x50 - reduce interval by :05 every 3 (1:10 - :45)
Two rounds of:
1x300 - 4:20 smooth pull or swim
2x100 - 2:00 maximum effort choice of stroke
20x25 - :30 kick or breathing pattern
1X500 winding down moderate to EZ
=3900 SCY