Race Pace Run: 45-Minute Threshold Effort

Session Overview

This 45-minute session trains your body and brain to hold goal race pace under controlled conditions. By running at your target triathlon run split repeatedly, you programme the neurological and metabolic systems that allow you to execute on race day — even when your legs are already heavy from the swim and bike. This is precision training, not punishment.

What You’ll Need

• GPS watch for precise pace tracking
• Your planned race shoes — wear them so the feel becomes familiar
• A flat or measured route — a track or 1km road loop is ideal for accurate splits
• Water, especially if temperature is above 15°C

Warm-Up (10 minutes)

10 minutes of easy running at RPE 3, well below race pace. Finish with 4 x 20-second strides on the flat — accelerate smoothly to about 90% of your maximum speed, then decelerate and walk for full recovery between each. Strides prime your fast-twitch fibres for the work ahead without creating fatigue.

Main Set

Your race pace is your goal kilometres-per-minute split for the run off the bike at your target event. For a 40-minute 10km run, that’s 4:00/km. For a 55-minute 10km, that’s 5:30/km. Set this honestly — vanity pacing wastes the session.

• 5 x 1km at race pace — 90 seconds easy jog recovery between each rep; the goal is identical splits across all five, not a progressive effort
• After the final rep: 5 minutes of easy jogging before starting the cool-down — this simulates running through late-race fatigue
• Alternative for sprint/Olympic distance athletes: 8 x 600m at race pace with 60 seconds recovery — more reps at shorter distance builds specific speed endurance

Cool-Down (5 minutes)

5 minutes of easy running reducing to a walk, followed by static stretching targeting calves, hip flexors, and hamstrings. Record your splits from the session — a set of 5:02, 4:58, 5:01, 4:59, 5:00 is excellent; 4:45, 4:52, 5:05, 5:18, 5:30 tells you the pace was too ambitious and needs adjusting.

Coaching Notes

• This session is most valuable 4–8 weeks before your target race, once you have a solid aerobic base — don’t introduce race pace work too early in a training block
• For maximum specificity, do this as a brick: 20–30 minutes on the turbo at moderate effort, then immediately start the race pace run without stopping
• Easier variation: 3 x 1km at race pace with 2 minutes recovery; harder: reduce recovery to 75 seconds or add a sixth rep
• If you can’t hold race pace across all reps, your current fitness doesn’t support your goal time — revise the target rather than grinding through broken sessions