From BR Bullpen
Mauro Adrián Ruiz Rubio
- Bats Right, Throws Right
- Height 5' 9", Weight 176 lb.
 Biographical Information
Mauro Ruiz pitched and managed in Mexico.
Ruiz hit .389 for the Mexican national team in the 1955 Pan American Games but did not pitch then went 2-0 for Mexico in the 1959 Pan American Games; the rest of the staff was 1-2. Mauro tied Venezuelans Luis Peñalver and Manuel Perez for the best record in the event. In the 1959 Central American and Caribbean Games, he had a 0.35 ERA, second to Pedro Pérez, and went 2 for 13 as a backup 1B to Rafael Casillas.
He turned pro with the 1960 Tigres de México, going 7-7 with a 5.06 ERA and a 1.62 WHIP. In 1961, he turned in a 11-16, 4.98 campaign in which he allowed 267 hits and 153 runs (106 earned) in 195 innings. He led the Mexican League in losses. In 1962, he improved to 8-9, 3.08 for the Tigres. He split 1963 between the Tigres and the Pericos de Puebla (8-5, 3.80).
In 1964, the right-hander turned in a 10-6, 3.42 record out of the Puebla bullpen. He would have been in the Mexican League top 10 in ERA had he qualified. He turned in two similar campaigns in 1965 (8-3, 3.57) and 1966 (8-4, 3.49). In 1966, he led the Liga with 58 games pitched. In his last season in the LMB, he fell to 3-4, 4.57 for the 1967 Pericos. Overall, he had gone 63-54 with a 4.05 ERA in 350 games in the Mexican League (67 starts). He had allowed 1,148 hits and 337 walks in 989 IP while striking out 393.
- The Mexican League: Comprehensive Player Statistics by Pedro Treto Cisneros
- Assorted Baseball Guides
- A History of Cuban Baseball by Peter Bjarkman