How to Run a Sub-2-Hour Half Marathon: Pacing Strategy

Sub-2 hours for a half marathon (13.1 miles / 21.1km) requires a pace of 5:41 per km or 9:09 per mile. It's a popular target that's achievable for most runners with a structured plan.

Pacing strategy

The most common mistake is going out too fast. Target even splits or a slight negative split (second half marginally faster). At 5:41/km, your 10K split should be around 56:50 — if you're at 54:00 at 10K, you're running too fast.

Training requirements

• Run 4–5 days per week
• Weekly long run of 14–16km, building to 19–21km in peak weeks
• One tempo run per week at half-marathon pace or faster
• Easy runs truly easy (conversational pace)

On race day

Start slightly slower than target pace for the first 3km, lock into rhythm by 5km, hold form through miles 8–10 when fatigue peaks, then push the final 3km if you have anything left.

Use our half marathon pace calculator to build your race plan.