The ABOM Bib Number Requirements for Athletes has changed slightly. The updated is as described below:
- Runners affiliated with the Portuguese Orienteering Federation (POF) must wear their own POF bib number.
- All Elite runners must wear the official ABOM 2025 bib number provided by the organizers.
- Bib numbers will be distributed at the Event Office.
- All other athletes do not need mandatory ABOM bib number.