Overview

You can already swim well. Now it's time to swim faster and further. This 10-week plan is built around structured sets — intervals, threshold work, and targeted drills — to sharpen your speed and build serious endurance.

By the end, you'll be ready to race anything from a 1,500m pool event to a 3km+ open water swim with confidence.

Golden Rule: Speed comes from efficiency, not effort. The fastest swimmers in the pool are usually the smoothest, not the ones thrashing the hardest.

What You'll Need

Pull buoy — isolates your upper body for targeted arm work
Hand paddles — builds power in your catch and pull phase
Fins (short blade) — improves kick technique and body position
Tempo trainer or pace clock — essential for hitting interval targets
Training log — track your sets, times, and stroke counts weekly

Understanding the Session Types

Session Type	Abbreviation	What It Means	Effort Level
Endurance	EN	Long, steady-paced swimming to build aerobic base	RPE (Rate of Perceived Exertion, 1–10 effort scale) 5–6 / conversational
Threshold	TH	Sustained hard effort — your "comfortably uncomfortable" pace	RPE 7–8 / can speak in short phrases
Speed	SP	Short, fast repetitions with full recovery	RPE 9–10 / maximum effort
Drill	DR	Technique-focused sets with specific focus points	RPE 3–4 / slow and deliberate
Recovery	REC	Very easy swimming to flush out fatigue	RPE 3–4 / effortless

The 10-Week Plan

Each week includes 4 pool sessions. Total weekly volume builds from approximately 8km to 14km.

Phase 1: Aerobic Foundation (Weeks 1–3)

Week	Session 1 — Endurance	Session 2 — Drill + Threshold	Session 3 — Speed	Session 4 — Long Swim
1	400m warm-up. 5 × 200m EN @ 3:30, rest 15s. 200m cool-down. Total: 1,600m	400m warm-up. 8 × 50m DR (catch-up). 4 × 200m TH @ 3:15, rest 20s. 200m cool-down. Total: 1,600m	400m warm-up. 8 × 50m SP @ :45, rest 30s. 4 × 100m EN, rest 10s. 200m cool-down. Total: 1,400m	2,000m continuous EN. Sight every 10 strokes. Even pace throughout
2	400m warm-up. 6 × 200m EN @ 3:25, rest 15s. 200m cool-down. Total: 1,800m	400m warm-up. 8 × 50m DR (fingertip drag). 5 × 200m TH @ 3:10, rest 20s. 200m cool-down. Total: 2,000m	400m warm-up. 10 × 50m SP @ :44, rest 30s. 4 × 100m EN, rest 10s. 200m cool-down. Total: 1,500m	2,500m continuous EN. Negative split: second half faster than first
3	400m warm-up. 4 × 400m EN @ 7:00, rest 20s. 200m cool-down. Total: 2,200m	400m warm-up. 6 × 50m DR (fist drill). 4 × 300m TH @ 4:45, rest 20s. 200m cool-down. Total: 2,100m	400m warm-up. 8 × 75m SP @ 1:10, rest 30s. 200m cool-down. Total: 1,200m	3,000m continuous EN. Hold your stroke count within 2 strokes per length

Phase 2: Threshold Development (Weeks 4–6)

Week	Session 1 — Endurance	Session 2 — Drill + Threshold	Session 3 — Speed	Session 4 — Long Swim
4	400m warm-up. 3 × 500m EN @ 8:30, rest 20s. 200m cool-down. Total: 2,100m	400m warm-up. 6 × 50m DR (single-arm). 5 × 300m TH @ 4:40, rest 15s. 200m cool-down. Total: 2,400m	400m warm-up. 12 × 50m SP @ :43, rest 25s. 200m cool-down. Total: 1,200m	3,000m EN. Alternate every 500m: pull buoy / normal
5	400m warm-up. 2 × 800m EN @ 13:30, rest 30s. 200m cool-down. Total: 2,200m	400m warm-up. 8 × 50m DR (catch-up). 3 × 400m TH @ 6:10, rest 20s. 200m cool-down. Total: 2,400m	400m warm-up. 6 × 100m SP @ 1:30, rest 30s. 4 × 50m easy. 200m cool-down. Total: 1,600m	3,500m continuous EN. Practise race-pace for the middle 500m
6	400m warm-up. 5 × 400m EN @ 6:45, rest 15s. 200m cool-down. Total: 2,600m	400m warm-up. 6 × 50m DR (sculling). 4 × 400m TH @ 6:00, rest 20s. 200m cool-down. Total: 2,500m	400m warm-up. 8 × 75m SP @ 1:05, rest 25s. 4 × 50m REC. 200m cool-down. Total: 1,400m	4,000m continuous EN. This is your longest swim — stay smooth

Phase 3: Race Sharpening (Weeks 7–9)

Week	Session 1 — Endurance	Session 2 — Threshold	Session 3 — Speed	Session 4 — Race Simulation
7	400m warm-up. 4 × 500m EN @ 8:15, rest 15s. 200m cool-down. Total: 2,600m	400m warm-up. 3 × 500m TH @ 7:45, rest 20s. 4 × 100m DR. 200m cool-down. Total: 2,500m	400m warm-up. 4 × 100m SP @ 1:25, rest 30s. 4 × 50m SP @ :40, rest 30s. 200m cool-down. Total: 1,200m	400m warm-up. 1,500m race-pace simulation. 400m cool-down. Total: 2,300m
8	400m warm-up. 3 × 600m EN @ 10:00, rest 20s. 200m cool-down. Total: 2,400m	400m warm-up. 6 × 300m TH @ 4:30, rest 15s. 200m cool-down. Total: 2,400m	400m warm-up. 6 × 100m descending (each faster). Rest 20s. 200m cool-down. Total: 1,200m	400m warm-up. 2,000m race-pace effort. 400m cool-down. Total: 2,800m
9	400m warm-up. 2 × 1,000m EN @ 16:30, rest 30s. 200m cool-down. Total: 2,600m	400m warm-up. 4 × 400m TH @ 5:50, rest 15s. 200m cool-down. Total: 2,200m	400m warm-up. 8 × 50m all-out SP, rest 30s. 200m cool-down. Total: 1,000m	400m warm-up. 1,500m time trial. 400m cool-down. Note your splits! Total: 2,300m

Week 10: Taper and Race

Day	Session
Mon	1,200m easy: 400m warm-up, 4 × 100m at race pace with 20s rest, 400m cool-down
Tue	Rest
Wed	800m easy: 400m warm-up, 4 × 50m sharpening sprints with 30s rest, 200m cool-down
Thu	Rest
Fri	400m very easy loosener. Stretch and visualise
Sat	Race Day! Trust your training, nail your pacing, and finish strong
Sun	Rest and celebrate

Key Drills Explained

Drill	Focus	How To Do It
Catch-up	Timing and reach	Don't start the next stroke until your lead hand touches the other hand out front
Fingertip Drag	High elbow recovery	Drag your fingertips along the surface during the recovery phase
Fist Drill	Feel for the water	Swim with clenched fists to engage your forearms in the pull
Single-Arm	Stroke balance	Swim with one arm only, other arm extended. Alternate every 50m
Sculling	Water feel and catch	Move your hands in a figure-of-eight pattern at the front of the stroke

Race Preparation

Timing	What To Do
2 weeks before	Reduce volume by 40%. Maintain intensity on speed sets
1 week before	Short, sharp sessions only. No long swims. Stay fresh
Night before	Prepare your kit bag: goggles (plus spare pair), cap, swimsuit, warm-up clothing, water, snack
Morning of	Light breakfast 2–3 hours before. Arrive early. Swim 400m easy to warm up
During the race	Start controlled — don't go out too hard. Negative split if possible. Sight every 6–8 strokes in open water
After	Cool down with 200m easy. Hydrate. Refuel within 30 minutes

Tips for Success

Track your CSS (Critical Swim Speed) — your sustainable threshold pace in the water, similar to a runner's tempo pace. To find it: swim a 400m and a 200m time trial, subtract the 200m time from the 400m time, then divide by 2 to get your pace per 100m
Film yourself once a month — technique flaws are much easier to spot on video
Prioritise sleep — your body adapts and repairs when you rest, not when you train
Rotate your drills — different drills target different weaknesses; keep them varied
Race your training partners — a bit of friendly competition on speed sets sharpens your edge

What's Next?

You're now a genuinely fast, fit swimmer. Where to from here?

Enter a swim event — look for local 1,500m pool races or 3km open water events
Take on a triathlon — your swim leg is already sorted; add running and cycling to go multi-sport
Coach others — your experience could help someone work through our Learn to Swim 1K guide
Explore open water — if you haven't already, try our Open Water Swimming guide for venue-specific tips

Swim Speed and Endurance Plan🔒

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