Fonseca has accumulated a batting average of .316 for his baseball career in addition to 518 runs scored and an OPS of .436. He has been struck out 199 times and earned a walk on 186 occasions, contributing to a .355 on-base percentage. In his professional baseball career, Fonseca has hit 31 baseballs out of the park while driving in 485 runs. He has compiled a slugging percentage of .080 and he has racked up 1,471 bases. For his time in the league, he came to bat 3,727 times and has notched a base hit 1,075 times.
