What is 55 X 4's?
55 yards sprinted 80%-100% 4 times through per set. many sets ensue.
coach: okay guys, we've only got 8 sets of 55 X 4's today, 14 sets of GPP, and 15 100 yd. dashes
everyone else: (trying to act like they're not defeated)
See failure, renegade
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