Vergez achieved early success in 1929–30 with his hometown team, the Oakland Oaks: he batted over .300 each season, smashed 46 and 29 home runs, and was the PCL's All-Star third baseman in 1929.

But, suffering from appendicitis, he could not play during the September stretch drive nor in the 1933 World Series, won by the Giants in five games with Travis Jackson at the hot corner.

On November 1, 1934, he was traded to the second-division Philadelphia Phillies with Pretzel Pezzullo, Blondy Ryan and George Watkins for shortstop Dick Bartell.

[6] His MLB career at an end, Vergez played for almost eight full seasons in the Pacific Coast League with Sacramento (1936–38) and then, from 1939 to 1943, as the player-manager of the Oakland Oaks.

He later scouted for the Giants and was the head baseball coach at Saint Mary's College, where he tutored future MLB third baseman Andy Carey.