He is on the books of Sporting San Miguelito and wears shirt number 8. His main role on the pitch is Midfield. He measures 176cm in height and weighs 63kg.

Over 8 appearances in the CONCACAF Central American Cup 2025, Martín Guillermo Ruíz Pérez contributed 3 goals and 0 assists, completed 5 key passes from 80 total passes, and posted a passing accuracy of 8.5.