The 2026 World Athletics Indoor Championships will see a series of rule tweaks aimed at improving competition flow and athlete experience. Here are five key changes to watch:
1. New 400m format
The 400m will feature an updated structure for both heats and finals, designed to make racing more competitive and reduce lane-based advantages.
2. Revised 800m break point
Athletes and fans will need to keep a close eye on the break point in the 800m, with adjustments that could impact positioning and race tactics early on.
3. Mixed 4x400m relay introduced
A major addition to the programme, the mixed 4x400m relay brings a new tactical dimension, blending men’s and women’s splits in one race.
4. Changeover adjustments
Relay changeover rules have been refined to ensure smoother transitions and minimise interference, particularly in tighter indoor tracks.
5. Dropped baton rule relaxed
A dropped baton will no longer automatically end a team’s race, offering athletes a chance to recover and stay in contention.



