He plays primarily as a Goalkeeper. His preferred foot is Right. His current market value is estimated at 150K €.

His most recent move was a from Sport Huancayo to Alianza Universidad de Huánuco on 2026-01-14.

In the Peruvian Liga 1 2025, Willy·Diaz played 13 matches, averaging 0 interceptions, 0 tackles, and 0.4 clearances per game.