He is on the books of Boston River and wears shirt number 22. At international level, he features for Uruguay U23. His main role on the pitch is Defender. He measures 170cm in height and weighs 68kg. His stronger foot is Left. His estimated market valuation currently stands at 450K €.

His latest transfer saw him join Boston River from Nacional Montevideo via on 2025-01-01.

Across the Uruguay Primera Division 2026, Fredy Martinez appeared in 4 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.