Sharpening, not building.

The peak phase is the most integrated stretch of the season. Every modality is actively managed as a single system with one objective: bring the body to the start line at maximum race readiness without breaking it.

Running reaches its highest specificity and volume. Marathon-pace work, race simulations, sharpening intervals. This is the most demanding running the body will see. Everything else in the method pulls back — not because those modalities stop mattering, but because the recovery they consume now competes directly with the running stimulus.

Marathon-pace continuous runs extend to eight, ten, twelve miles. Long runs carry significant marathon-pace segments. Sharpening intervals at five-K and ten-K pace maintain leg speed and neuromuscular coordination. Two to three quality sessions per week, with seventy to seventy-five percent of volume still easy.

The running is harder than it will ever be again this cycle. Race simulations — full dress rehearsals with race-day fueling, pacing, and gear — happen here, three to four weeks before the race. This is where you learn what race day will feel like, so that race day itself is familiar.

Drill frequency drops to once per week. The form is established; maintaining it costs less than building it did.

Two or more sessions per week continues. But the intensity range narrows: moderate and low only. No hard kettlebell sessions. The nervous system is already under peak running load — layering hard kettlebell work on top would compete for the same recovery.

Twin Iron is marked as generally inappropriate here. The bilateral load it carries conflicts with the recovery demand of peak running. The remaining blocks — Iron Backbone, Stronghold, and the four power blocks — stay available, but at reduced dose.

The chassis doesn't need to be built anymore. It was built in base and build. Peak kettlebell work is maintenance: keep the patterns active, keep the tissues loaded enough to remember their role, but don't drain the recovery that running needs.

Standalone yoga continues at one to two sessions per week, but the mix shifts. If the nervous system is elevated — and in peak, it often is — the AI selects yin: minutes-long holds in floor shapes, deep tissue release, parasympathetic activation. Vinyasa still appears when the body is fresh, but the default lean changes.

Auto-attached yoga tightens. Before quality runs, it's Sun Salutation A and B — precise, rehearsed, no exploration. After quality runs and long runs, slow-flow cool-downs. The yoga becomes functional infrastructure, not a standalone pursuit.

The night before a key effort, the AI leans standalone yoga toward down-regulation. You do not want an activating vinyasa flow the evening before a marathon-pace workout. You want yin. The system knows this.

Quality swimming narrows sharply. Most swims are aerobic — easy swims, recovery swims. Maybe one CSS swim survives if the running week has headroom, but the default is aerobic. The pool's primary job in peak is recovery: flush the legs, open compressed posture, deliver cardiovascular work without impact.

This is not a demotion. It is swimming doing exactly what it is best at. An easy forty-five-minute swim the morning after a twenty-mile long run with marathon-pace segments is one of the most valuable recovery sessions in the entire season. The hydrostatic pressure, the horizontal position, the divergent muscular demands — all of it serves the runner without costing the runner anything.

In base, the modalities were independent. In build, they started coordinating. In peak, they are a single system. The prescription reads load signals across all four — HRV, resting heart rate, sleep, completion data, recent intensity — and calibrates every session against every other.

A bad night of sleep doesn't just soften tomorrow's run. It might pull the kettlebell session to low intensity, swap a standalone vinyasa for yin, or shift a quality swim to easy. The entire week reshapes around the body's actual state.

This is what periodization means in the method. Not a fixed calendar of workouts. A system that gets tighter as race day approaches — more responsive, more integrated, more protective of the single outcome that matters.