Common Canadian race targets
- 5k under 25 minutes — 5:00 min/km
- 10k under 50 minutes — 5:00 min/km
- Half-marathon under 2 hours — 5:41 min/km
- Marathon under 4 hours — 5:41 min/km
- Marathon under 3:30 — 4:58 min/km (BQ for most age groups)
Why pacing matters more than max speed
Even pacing — running every kilometre at roughly the same effort — is associated with better race outcomes than going out hard and fading. Most first-time half-marathoners and marathoners run their fastest split in km 1 and pay for it in km 30+. Use this calculator to set a realistic finish-time target, then divide that pace into your race-day plan.
Pace vs effort
A 5:00 min/km pace on flat asphalt at 10°C is a very different effort from the same pace on a hilly trail in 28°C heat with humidity. Use heart-rate zones, rate-of-perceived-exertion, or a workout-specific target like “easy conversational” rather than rigidly hitting a pace. A pace calculator plans your race; your watch and your body run it.