He is on the books of Athletic Bilbao B and wears shirt number 9. His main role on the pitch is Forward. His estimated market valuation currently stands at 400K €.

His latest transfer saw him join Athletic Bilbao B from Sestao via Loan on 2024-06-30.

During the Primera Federación 2025-2026 campaign, ibai sanz made 26 appearances, scoring 8 goals and adding 0 assists. He averaged 0.3 goals per match from 49 shots, with 22 on target.