1500m Race-Pace Pool Continuous Effort Session

Session Overview

This session builds genuine race confidence for Olympic distance triathlon by asking you to swim 1,500m continuously at your target race pace — no stopping, no intervals. Unlike broken sets or CSS work, a continuous 1,500m effort replicates the exact physiological and psychological demands of race-day swimming, and completing it successfully in training is one of the best confidence-builders you can do in your final 4–6 weeks of preparation.

What You’ll Need

• 25m or 50m pool (60 lengths for a 25m, 30 lengths for a 50m pool)
• Swim watch or poolside clock to track split times
• Your race goggles and cap (use your actual race setup)
• Optional: wetsuit if your target race is likely wetsuit-legal

Warm-Up (10 minutes)

Swim 300m easy freestyle at Zone 1, then complete 4 × 25m build sets — easy, moderate, fast, easy — with 15 seconds rest between each. Your catch and pull rhythm should feel established and your breathing controlled before starting the 1,500m effort.

Main Set

Swim 1,500m continuously (60 lengths of a 25m pool) at your Olympic triathlon target race pace. This is typically 2–5 seconds per 100m slower than your CSS pace — aerobically sustainable, controlled, and consistent from the first length to the last. Do not rest at the walls beyond a normal tumble turn. Aim for even splits throughout, or ideally a slightly faster second 750m if you are feeling strong in the back half.

• Distance: 1,500m continuous freestyle (RPE 6.5–7)
• Target pacing: Hold negative splits where possible — second 750m equal to or faster than first
• Technique focus: High elbow catch, full extension at entry, bilateral breathing every 3 strokes, sight every 6–8 strokes as if racing in open water

Cool-Down (5 minutes)

Swim 200m easy backstroke or catch-up drill to bring your heart rate down and loosen the arms and shoulders. Stretch your lats and chest poolside after exiting the water.

Coaching Notes

• Record your total time and average 100m split — this is your race-day swim benchmark. Use it to set a realistic target pace for your actual event.
• If you fade significantly in the last 400m, your start pace was too fast. Repeat this session in two weeks and focus on more even pacing from the gun.
• Scale down: beginners can complete 2 × 750m continuous with 60 seconds rest between sets, building to the full 1,500m in subsequent weeks.
• Race preparation detail: practise sighting the pool clock or lane rope as a proxy for open water buoy sighting to reinforce the habit before race day.