8-Week Sprint Triathlon Advanced Training Plan

Plan Overview

This 8-week advanced sprint triathlon training plan is designed for experienced triathletes targeting a fast sprint-distance finish. You should be able to swim 750m comfortably, run 5K at sub-25 minutes and complete a 20km bike ride without difficulty before starting this plan. By the end of eight weeks, you’ll have developed the speed, lactate threshold and race-specific fitness to deliver your best sprint performance.

Prerequisites

• Can swim 750m continuously at a comfortable pace in open water or pool
• Can run 5K in under 25 minutes with relative comfort
• Can complete a 20km outdoor ride at Zone 3 effort without significant fatigue
• Has completed at least one sprint triathlon or equivalent multi-sport event before
• Access to a pool, outdoor route and either a road or a turbo trainer

Plan Structure

This plan runs over 8 weeks at 8–11 training hours per week, structured into three phases to progressively build fitness before a sharpening taper. Each phase increases in intensity while managing fatigue carefully.

• Weeks 1–2: Base Sharpening — Re-establish consistent training volume across all three disciplines at aerobic effort. Introduce one threshold session per week per discipline to set your baselines for the build phase ahead.
• Weeks 3–5: Build Phase — Increase training intensity with regular VO2max bike intervals, CSS swim sets and track run repeats. Weekly brick sessions bridge the gap between disciplines. This is the hardest phase of the plan — expect fatigue and manage recovery carefully.
• Weeks 6–7: Peak Phase — Highest combined intensity and specificity. Race simulation sessions, sprint swim repeats and over-under bike intervals simulate the demands of race day in a controlled training environment. Volume starts to decrease slightly as intensity peaks.
• Week 8: Taper — Volume drops by 40–50% while maintaining short, sharp quality sessions. Legs and lungs need to feel fresh on race day — the fitness gains are already banked. Trust the process.

Sample Week (Build Phase — Week 4)

A typical build-phase week looks like this, balancing intensity with recovery across the three disciplines:

• Monday: Rest or easy 20-minute recovery swim
• Tuesday: CSS Threshold Swim — 2,000m total with main set at CSS pace
• Wednesday: VO2max Bike Intervals — 60-minute session with 4 x 5-minute efforts at 110% FTP
• Thursday: Track Run — 8 x 400m repeats at 5K race pace with 90-second recovery jogs
• Friday: Rest or light stretching and mobility work
• Saturday: Race Simulation Bike — 90-minute outdoor ride at race pace with brick run
• Sunday: Sprint Swim — 50m repeats for race speed, followed by a 30-minute easy recovery jog

Key Tips for Success

• Consistency beats perfection — it’s better to complete every session at 90% effort than to miss half of them aiming for 100%.
• Sleep is your most powerful recovery tool. Aim for 8 hours per night during the build and peak phases of this plan.
• Fuel every session properly — particularly the bike and run sessions in the build phase, which are glycogen-intensive. Don’t train fasted for quality sessions.
• Practice your race-day nutrition strategy in the race simulation sessions — don’t try new gels or drinks on race morning.