Harl Vestin Maggert (February 13, 1883 – January 7, 1963) was a Major League Baseball outfielder for the Pittsburgh Pirates and Philadelphia Athletics.

[3] In late July 1920, Vernon Tigers first baseman Babe Borton handed Maggert $300, which aroused suspicion.

In the ensuing investigation, it was discovered that Maggert and other Salt Lake City players had thrown games during the previous season so that Borton's Tigers could win the pennant.

[4] However, Maggert, Borton, Gene Dale, and Bill Rumler were expelled from the Pacific Coast League.

Over the next few years, Maggert played in "outlaw" baseball leagues along with other suspended players, such as the Black Sox.