This is a 4-round for-time workout with mixed modal components. Round breakdown: 1000m row (195-270s fresh), 20 thrusters at 95/65 (40-60s fresh), 30 double unders (15-30s fresh). Fresh total per round: 250-360s. With fatigue multipliers: Round 1: 1.0x (280s elite, 360s novice), Round 2: 1.1x (308s elite, 396s novice), Round 3: 1.2x (336s elite, 432s novice), Round 4: 1.3x (364s elite, 468s novice). Transition time between movements: 5-15s per transition × 3 transitions × 4 rounds = 60-180s total. Set breaking on thrusters (rounds 3-4) and double unders adds 10-30s per round. Total calculated times: Elite (L10): 7.5 min, Advanced (L8): 8.5 min, Intermediate (L5): 11.5 min, Novice (L2): 15 min, Beginner (L1): 17 min.