Open Water Swim: Race Pace 1500m

Session Overview

This session simulates an Olympic-distance swim leg at goal race pace, in open water, with the sighting and rhythm demands a pool simply can’t replicate. It’s built for intermediate swimmers with a race on the calendar who want a realistic dress rehearsal rather than another pool set.

What You’ll Need

• Wetsuit or swim skin, matched to water temperature and your race’s rules
• Open water safety buoy / tow float (non-negotiable for solo open water swims)
• Goggles suited to the light conditions — tinted or mirrored for bright, clear for overcast
• A watch or tow-float-mounted GPS to track pace, if available

Warm-Up (10 minutes)

Start with 5 minutes of easy, relaxed swimming to get comfortable in open water — settle your breathing and let your heart rate come down from the initial cold/adrenaline spike. Follow with 5 minutes of sighting drills: swim 6 strokes, lift your head for a quick sight of a landmark or buoy, then back down, without breaking your stroke rhythm.

Main Set

The core of the session is 1500m at your goal Olympic-distance race pace, broken into manageable chunks so you can check your pacing without losing the open water rhythm.

• 3 x 500m at goal race pace, sighting every 6-8 strokes, with 30 seconds rest between reps to check your split against target pace
• On each rep, aim to hold your pace within a few seconds of target rather than starting fast and fading
• Optional harder variation: swap the last 500m for a hard effort, simulating a race-finish surge into the swim exit

Cool-Down (5-10 minutes)

Finish with easy, unstructured swimming, focusing on long, relaxed strokes rather than pace. Use this time to notice anything that felt off in your sighting or rhythm so you can address it before race day.

Coaching Notes

• Sight less often than feels natural at first — every 6-8 strokes is enough; over-sighting breaks your rhythm and slows you down more than it helps your navigation
• Common mistake: starting the first 500m too fast on adrenaline, then fading badly by the third rep — use the rest periods to genuinely check your pace, not just as a breather
• Scaling down: reduce to 3 x 300-400m for a sprint-distance target race, or if you’re newer to open water swimming
• This should feel like RPE 7-8 out of 10 — comfortably hard, sustainable for the full distance, not an all-out sprint