Open Water Swim: 1500m Race Pace Simulation

Session Overview

This session simulates the full 1500m Olympic-distance race swim in open water. Rather than just completing the distance, you’ll execute it with the same pacing structure you’ll use on race day — a controlled start, a sustained middle section at race pace, and a strong final push to the exit. Do this 2–3 times in the weeks before your race and the swim leg stops being a guessing game.

What You’ll Need

• Triathlon wetsuit (if water is below 24°C and legal for your race)
• Open water swim safety buoy — mandatory for solo open water sessions
• GPS watch that tracks open water distance and pace
• A supervised open water venue or a training partner

Warm-Up (8 minutes)

Enter the water and swim easy freestyle for 5 minutes, allowing your breathing to settle and your body to adjust to the open water environment. Spend the final 3 minutes on sighting practice — lift your eyes every 6 strokes to spot a fixed distant landmark, then return to your normal head position without pausing your stroke. Good sighting technique in the warm-up primes it for the race-pace effort.

Main Set

One continuous 1500m swim at your target race pace. Use this pacing breakdown to stay on track:

• First 300m: easy, controlled effort at RPE 5–6 — settle your breathing, establish a sighting routine, let the group dynamic dissipate if you’re training with others
• Next 600m: build to target race pace at RPE 7 — smooth, efficient strokes with high elbow catch; sight every 6–8 strokes to stay on course
• Next 400m: hold race pace — this is the discipline section; maintain rhythm even when it starts to feel hard
• Final 200m: strong finish at RPE 8–8.5 — increase effort, drive through to the swim exit, lift your head to locate the exit point in the final 50m

Cool-Down (5 minutes)

Easy backstroke or light freestyle for 5 minutes with controlled breathing. Then practise your race exit — stand up in shallow water, remove your goggles and cap with both hands, and walk briskly toward the imaginary transition area. Simulate the wetsuit strip if you’re wearing one. A practised exit takes 10–15 seconds less than an improvised one.

Coaching Notes

• Sight toward fixed landmarks like buildings or cliff lines rather than scanning the horizon; consistent, efficient sighting adds minimal time and prevents major navigation errors
• The most common mistake is sprinting the first 200m and blowing up in the back half; resist the adrenaline — a controlled start produces faster total times
• Beginner option: break into 3 x 500m with 60 seconds passive recovery between each effort; build to the continuous 1500m over 3–4 weeks
• If you don’t have access to open water, replicate in a 50m pool with minimal turns — the pacing discipline transfers directly