He played all or part of seven seasons in Major League Baseball for the Cincinnati Reds (1907), Pittsburgh Pirates (1907), St. Louis Cardinals (1907), Boston Red Sox (1909), New York Highlanders/Yankees (1910–13) and Chicago Cubs (1917), primarily as an outfielder.

Wolter began his playing career after graduating from Santa Clara University in 1906.

[1] In seven major league seasons, Wolter played in 588 games and had 1,907 at bats, 286 runs, 514 hits, 69 doubles, 42 triples, 12 home runs, 167 RBI, 95 stolen bases, 268 walks, .270 batting average, .365 on-base percentage, .369 slugging percentage, 703 total bases and 56 sacrifice hits.

Wolter recorded the first hit at Fenway Park on April 20, 1912, a bunt single past Buck O'Brien that advanced Guy Zinn to second base.

This biographical article relating to an American baseball outfielder born in the 1880s is a stub.