You swim real workouts. Now go the distance. Phase 3 uses threshold training, stroke economy drills, and progressive distance sets to build you from 1,500-yard sessions to swimming a full 1.5 miles — 2,640 yards — in one workout.
Phase 3 · Advanced
$14.99
6 weeks · Instant PDF download
Sold and delivered through Etsy. Instant PDF download after purchase.
Where this fits in The Adult Swim Method
What's Inside Phase 3
Phase 3 adds three training elements that don't appear in earlier phases — because you need the aerobic base from Phases 1 and 2 before they're useful. Now that you have it, here's what gets you to 1.5 miles.
6-Week Progression
Phase 3 sessions build methodically. Each week has a specific focus so you're not just swimming more — you're swimming smarter.
Who This Is For
Questions
Is Phase 3 right for triathlon training?
Yes — Phase 3 is ideal for anyone targeting an Olympic-distance triathlon (1,500m swim) or a half-Ironman (1.2-mile swim). By the end of 6 weeks you'll be swimming 1.5 miles per session, which puts you well above both race distances and gives you real confidence on race day.
What is threshold training and do I need experience with it?
Threshold training means swimming at the pace you could sustain for roughly 60 minutes — hard but controlled, not all-out. It's the most efficient way to improve both speed and endurance simultaneously. Phase 3 introduces threshold sets progressively, with coaching notes explaining how to gauge effort and what to target. No prior threshold experience needed.
How many yards per session does Phase 3 reach?
Sessions build from roughly 2,000 yards in week 1 to 2,640 yards (1.5 miles) in the final week. That distance includes warm-up, drill set, main set, and cool-down — the full structured workout — so you're building distance the right way, not just grinding laps until you're exhausted.
Do I need to complete Phase 2 first?
You should be comfortable swimming 1,500 yards per session with interval structure before starting Phase 3. If you completed Phase 2, you're ready. If you come from another training background and can handle structured 1,500-yard workouts, you can enter Phase 3 directly — the plan has entry notes to help you calibrate.