Season Plan

Progressive yardage increase. EN1/EN2 dominant. Build the aerobic engine. The aerobic system provides ~80% of energy for 200+ events and is the foundation that all other energy systems build upon. Mitochondrial biogenesis, increased capillary density, improved cardiac stroke volume.

Introduce EN3/threshold work alongside continued aerobic training. T-30 test sets to establish critical swim speed (CSS) baseline. Lactate threshold training raises the pace at which lactate begins to accumulate — the single most trainable determinant of distance swimming performance.

Maximum yardage weeks. This is the hardest training block of the season. Athletes should expect fatigue and slower race times — this is normal and expected. The training effect comes during the recovery and taper phases when the body supercompensates. "You don't get faster FROM training, you get faster from RECOVERING from training."

SP1/SP2 introduction. Race-pace sets become the focus. Quality over quantity. Volume is maintained but intensity increases. Athletes learn to "feel" their race pace and develop the ability to execute race strategy under fatigue. This is where meets become training tools — race to learn, not to rest.

Progressive volume reduction (40-60%) while maintaining intensity. The taper is where the magic happens — reduced training stress allows physiological supercompensation. Muscle glycogen stores increase, red blood cell count rises, neuromuscular coordination sharpens. Athletes should feel "springy" and fast. Race-specific work only.

Race week. Minimal training — short activation swims, starts/turns, race visualization. Trust the training. Warm up thoroughly. Race strategy execution is the priority.