Overview

The Olympic distance triathlon is where the sport gets serious — 1.5km swim, 40km bike, and 10km run. It demands genuine fitness across all three disciplines, smart pacing, and a solid nutrition strategy.

This 12-week plan assumes you've completed a sprint triathlon (or equivalent) and can swim 750m, ride for an hour, and run 5km without difficulty.

Golden Rule: Train the discipline you're weakest at most often. It's tempting to do what you enjoy, but balance wins races.

What You'll Need

Swim: Goggles, wetsuit (if open water), pull buoy for drills
Bike: Road or tri bike, helmet, cycling shorts, spare tube + pump
Run: Fitted running shoes, race belt, visor or cap
Nutrition: Energy gels, electrolyte drink, race-day breakfast you've tested
Extras: Tri suit (saves transition time), bike computer or GPS watch

The 12-Week Plan

Phase 1: Base Building (Weeks 1–4)

Week	Swim	Bike	Run	Brick / Other
1	1 km drills + steady	50 min easy	30 min easy	Sat: 40 min bike → 15 min run
2	1.2 km with 4 × 100m fast	60 min with 4 × 3 min efforts	35 min with 3 × 2 min fast	Sat: 45 min bike → 20 min run
3	1.3 km technique + endurance	65 min steady	40 min easy	Sat: 50 min bike → 20 min run
4	1 km easy (recovery)	40 min easy spin	25 min easy jog	Rest or light yoga

Week 4 is a recovery week. Lower the volume and let your body adapt before pushing on.

Phase 2: Building Volume (Weeks 5–8)

Week	Swim	Bike	Run	Brick / Other
5	1.4 km with speed intervals	70 min with 3 × 5 min efforts	40 min with 4 × 2 min fast	Sat: 55 min bike → 25 min run
6	1.5 km continuous	75 min steady ride	45 min easy	Sat: 60 min bike → 25 min run
7	1.5 km with 6 × 100m race pace	80 min with 4 × 5 min efforts	45 min with 3 × 3 min fast	Sat: 65 min bike → 30 min run
8	1 km easy (recovery)	45 min easy spin	30 min easy jog	Rest or light stretching

Phase 3: Race Specificity (Weeks 9–11)

Week	Swim	Bike	Run	Brick / Other
9	1.6 km with race-pace efforts	85 min with 2 × 10 min at race effort	50 min with 5 × 3 min fast	Sat: 70 min bike → 30 min run
10	1.5 km at race effort	90 min steady at target pace	50 min at race effort	Sat: Full race rehearsal (reduced distance)
11	1.2 km easy with drills	60 min easy	35 min easy	Sat: 30 min bike → 15 min run

Phase 4: Taper (Week 12)

Week	Swim	Bike	Run	Race
12	800m easy (stay sharp)	30 min easy spin	20 min easy jog	RACE DAY! Olympic Distance Triathlon!

Nutrition Strategy

Getting your fuelling right is critical at Olympic distance. Practise everything in training.

When	What	Why
Night before	Carb-rich meal — pasta, rice, or potatoes	Top up glycogen stores
Race morning	Toast + banana, 2–3 hours before	Steady energy without stomach issues
On the bike	1 gel at 20 min, sip electrolyte drink throughout	Fuel before you need it
Start of the run	1 gel in T2 or at km 2	Final energy boost for the run
Post-race	Protein + carbs within 30 min	Kickstart recovery

Transition Efficiency

Every second counts. Streamline your transitions:

Tip	Detail
Use a tri suit	Wear it for all three legs — no changing needed
Elastic laces	Slip straight into your run shoes without tying
Helmet first, helmet last	Put it on before touching your bike, take it off after racking
Practise, practise, practise	Run through your transition setup at least 3 times before race day

Race Day Pacing

Leg	Pacing Strategy
Swim	Start steady — don't sprint the first 200m. Find your rhythm by 300m
T1	Move with purpose but don't rush. Smooth is fast
Bike	Ride at 80% effort. Save your legs for the run. Keep cadence at 85–95 rpm
T2	Quick and calm. Gel in, shoes on, go
Run	First 2 km will feel odd — your legs need time to adjust. Settle in, then build

What's Next?

Olympic distance conquered? You're in the big leagues now. Options:

Sharpen your swim — try our Intermediate Swimming guide for open water skills
Build cycling power — check out our Intermediate Cycling guide
Go long — take on the Half Ironman Training Plan when you're ready for 70.3

Olympic Distance Triathlon Plan🔒

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