Sub 3:45 Marathon

What does Sub 3:45 Marathon feel like?

Sub 3:45 (5:19/km) is a strong recreational marathon goal — typically achievable for runners who can comfortably run a sub-1:50 half marathon. The pace feels very manageable early on, which is the main danger.

Even Split Checkpoints

These are the race clock times you should see at each marker for a perfect even split. Negative split runners should be 30–60s behind these in the first half.

Avg pace: 5:20/km · Goal: 3:44:59

Common mistakes

• ✗Running the first half in 1:48 — positive splitting at this distance rarely works out
• ✗Skipping gels because the stomach feels fine at km 20 — it won't feel fine at km 35 without fuel
• ✗Walking aid stations too slowly — keep moving, even a slow jog

Key race day tips

• ✓First half: 1:53 — even 2 minutes of banking in the first half isn't worth it
• ✓Gel every 40 minutes from 45 minutes in
• ✓Have a plan for km 30–35 — it will be harder than you expect