The Perfect Triathlon Workout Split: Combine Strength, Mobility, Stability, and Endurance

Here's the target structure for a triathlon training week that includes all conditioning elements:

Component	Frequency	Duration	When
Swim	2–3×	45–75 min	Morning preferred
Bike	2–3×	60–180 min	Per plan
Run	2–3×	30–75 min	Per plan
Strength training	2×	35–45 min	After easy sessions
Mobility	Daily	10–15 min	Post-workout or evening
Stability	2–3×	10 min	Integrated into warm-ups
Plyometrics	1×	15–20 min	When fresh, easy day

The key principle: Conditioning work supports your swim/bike/run — it never displaces key sessions. Strength enhances performance; it doesn't compete with it.

This guide brings together all the training modalities covered in our strength & conditioning cluster: • Swim strength • Running strength • Cycling strength • Stability training • Plyometric training • Mobility training

Discipline	Strength Focus	Stability Focus	Plyo Focus	Mobility Focus
Swimming	Upper body & core	Shoulder stability	Low impact	Shoulder & thoracic
Running	Lower body & hips	Single-leg balance	High impact	Hip & ankle
Cycling	Glutes & quads	Core stability	Medium impact	Hip flexors

For athletes training for a sprint triathlon or just starting out. Total training: 6–8 hours including conditioning.

Day	Session 1	Session 2	Conditioning
Monday	Easy swim (40 min)	—	Strength A (30 min)
Tuesday	Easy bike (45 min)	—	Mobility (10 min post-ride)
Wednesday	Easy run (30 min)	—	Stability warm-up (10 min)
Thursday	Swim intervals (45 min)	—	Mobility (10 min post-swim)
Friday	REST	—	Mobility only (15 min)
Saturday	Brick: Bike (45 min) + Run (15 min)	—	Strength B (25 min, evening)
Sunday	Long ride OR long run	—	Mobility (10 min post)

Notes: • Strength A = upper body focus (swim strength exercises) • Strength B = lower body focus (running strength exercises) • Stability is integrated into Strength session warm-ups • No dedicated plyometrics yet — build strength foundation first • Use our time planner to customise hours

For first-time triathletes, also see first triathlon step-by-step and our 12-week sprint plan.

For athletes training for Olympic distance or half Ironman. More structure, higher volume, and dedicated conditioning.

Day	Session 1	Session 2	Conditioning
Monday	Easy swim (50 min)	Strength A (40 min)	Mobility (10 min)
Tuesday	Bike intervals (60 min)	—	Mobility (10 min post-ride)
Wednesday	Easy run (40 min)	Plyometrics (15 min)	Stability warm-up (10 min)
Thursday	Swim technique (55 min)	Strength B (40 min)	Mobility (10 min)
Friday	Easy bike (45 min) OR REST	—	Mobility (15 min)
Saturday	Brick: Long bike (90 min) + Run (20 min)	—	Mobility (10 min post)
Sunday	Long run (60 min)	—	Mobility (10 min post)

Notes: • Strength A = cycling strength + core • Strength B = running strength + upper body • Plyometrics on Wednesday (easy day, done fresh) • Stability integrated into strength warm-ups • Key sessions (Tue intervals, Sat brick, Sun long run) are protected

For 70.3-specific plans, see our Ironman 70.3 training plan.

For experienced athletes targeting half or full Ironman. Maximum training with carefully managed fatigue.

Day	AM Session	PM Session	Conditioning
Monday	Easy swim (60 min)	Strength A (45 min)	Mobility (10 min)
Tuesday	Bike intervals (90 min)	Easy run (30 min)	Mobility (10 min)
Wednesday	Swim technique (50 min)	Plyometrics (15 min)	Stability (10 min)
Thursday	Easy bike (60 min)	Strength B (40 min)	Mobility (10 min)
Friday	Easy swim (45 min)	REST	Mobility (15 min)
Saturday	Long bike (3–5 hours) + Run (20 min)	—	Mobility (10 min)
Sunday	Long run (90–120 min)	—	Mobility (15 min)

Notes: • Strength A = Heavy lower body (squats, deadlifts, cycling-focused) • Strength B = Swim-focused upper body + core • Plyometrics on Wednesday (moderate day between hard days) • Stability fully integrated into strength warm-ups • Double sessions on Tue/Thu but conditioning is placed strategically

For full Ironman plans, see our Ironman training plan. Use the race day simulator to prepare mentally.

Rule 1: Never put strength before key sessions Key sessions are interval work, tempo runs, long rides, and brick workouts. These require fresh muscles. Strength goes after easy sessions or on separate days.

Rule 2: Avoid fatigue stacking Don't combine heavy lower body strength with a hard bike or run the next day. Example of bad scheduling: Heavy squats Monday evening → bike intervals Tuesday morning.

Rule 3: Mobility is recovery-compatible Mobility can go anywhere — it doesn't add fatigue. Post-workout, evening, rest days. The more frequently you do it, the better.

Rule 4: Plyometrics require freshness Always perform plyometrics early in a session (after warm-up, before endurance) and never on fatigued legs. Schedule on easy days.

Rule 5: Stability integrates into warm-ups Rather than scheduling standalone stability sessions, include 10 minutes of stability work in your strength session warm-up.

Rule 6: Protect the long session Your weekend long ride or long run is sacrosanct. No significant conditioning within 24 hours before it. Mobility only afterwards.

For scheduling around brick workouts, ensure 48 hours without heavy strength work beforehand.

The ratio of gym work to endurance training shifts across the season.

Off-season (8–12 weeks) • Strength: 3× per week (building phase) • Endurance: Lower volume, mostly easy • Mobility: Daily • Plyometrics: Introduced in weeks 5+ • Goal: Build strength foundation

Pre-season / Build (8–12 weeks) • Strength: 2× per week • Endurance: Increasing volume and intensity • Mobility: Daily • Plyometrics: 1× per week • Goal: Transfer strength to sport-specific performance

Race season (8–16 weeks) • Strength: 1× per week (maintenance) • Endurance: Peak volume and intensity • Mobility: Daily (especially important now) • Plyometrics: Low-impact only, or drop entirely • Goal: Maintain gains, avoid adding fatigue

Taper (1–3 weeks before race) • Strength: Drop entirely in final week • Endurance: Reduced volume, maintained intensity • Mobility: Continue daily • Plyometrics: None • Goal: Full recovery and freshness

For comprehensive periodisation strategy, see triathlon periodization explained.

1. Too much strength training More than 2× per week during race season adds fatigue without proportional benefit. The gym supports your triathlon training — it's not the main event.

2. Leg day before intervals Heavy squats or deadlifts require 48 hours recovery before your legs can perform at full capacity. Never schedule intense leg work the day before bike intervals or a tempo run.

3. Ignoring mobility entirely 'I don't have time for mobility' is the most common excuse — and the shortest path to injury. 10 minutes daily prevents the chronic tightness that causes overuse injuries.

4. No progression in the gym Doing the same circuit with the same weights for months yields nothing. Use progressive overload — add weight, reps, or sets every 2–3 weeks.

5. Training everything every day Your body needs recovery. At least 1 full rest day per week (mobility only is fine). More rest is better than more training when in doubt.

6. Copying professional schedules Professional triathletes train 25–35 hours per week with professional recovery support. Scale everything to your life — use our time planner and see training while working.

If you're training while working full-time or as a busy parent, here's how to fit everything in:

Minimum effective dose (5–6 hours/week total): • 3 × SBR sessions (swim, bike, or run) • 1 × combined strength + stability (40 min) • Daily mobility (10 min — morning or evening) • Skip dedicated plyometrics — include skipping in warm-ups instead

Combination strategies: • Add 10-min stability warm-up to strength sessions (no extra time needed) • Do mobility while watching TV or during lunch break • Combine easy swim + strength in the same gym visit • Remote workers can do mid-day mobility sessions

The non-negotiables (if you can only do 3 things):

1. One lower body strength session per week
2. Daily hip mobility (5 minutes)
3. One key swim/bike/run session per discipline per week

For training during busy periods, these minimums will maintain fitness without burnout.

Strength & Conditioning Cluster: • Strength Training for Swimming • Strength Training for Running • Strength Training for Cycling • Stability Training for Triathletes • Plyometric Training for Triathletes • Mobility Training for Triathletes • The Perfect Triathlon Workout Split