Sub-30 Speed Pyramid Swim: 100/75/50/25m Sets

Session Overview

This short speed pyramid is perfect for beginner triathletes who want to build confidence swimming at pace. In under 30 minutes, you will complete descending-distance efforts that teach your body what faster swimming feels like — without the commitment or recovery cost of a full interval session.

What You’ll Need

• 25m or 50m pool
• Goggles
• Swim cap (optional)
• Poolside clock or GPS swim watch

Warm-Up (7 minutes)

Swim 200m easy freestyle at RPE 3, focusing on long smooth strokes. Then 4x25m alternating catch-up drill and normal freestyle with 10 seconds rest each. This loosens the shoulders and activates your technique before the speed work begins.

Main Set

Complete 2 rounds of the pyramid below. At each distance swim at 80-90% effort — hard but not collapsing your form. Rest is proportional to distance. You should feel like you could go faster but are choosing not to:

• 100m at 80% effort — find a fast, steady rhythm
• 30 seconds rest
• 75m at 85% effort — pick up the pace slightly
• 25 seconds rest
• 50m at 85% effort — now you should feel fast and in control
• 20 seconds rest
• 25m at 90% effort — one hard length, full commitment to speed
• 90 seconds full rest, then repeat the pyramid

Cool-Down (5 minutes)

Easy 150m mixing backstroke and breaststroke. No rush — let your heart rate settle and appreciate the water. Notice how much more comfortable fast swimming feels as your fitness builds from sessions like this one.

Coaching Notes

• The biggest beginner mistake is sprinting the 100m and dying by the 25m — deliberate pacing is the whole skill
• Keep your head position neutral (looking down, not forward) especially when working hard
• Easier: complete only 1 round and take an extra 15 seconds rest between each rep
• Harder: add a third round or reduce rest intervals by 5 seconds each
• RPE target: 5-6 on the 100m, building to RPE 8 on the final 25m