[2] On October 4, 2001, Wolf served as third base umpire when Rickey Henderson broke Ty Cobb's runs scored record.

He worked a rehab assignment at Triple-A Charlotte the weekend of July 18–19 en route to a return to the Major Leagues.

[5] On August 2, 2015, Wolf was involved in a series of controversial events in a game between the Toronto Blue Jays and the Kansas City Royals.

The controversy was based upon a warning by Wolf to both teams after Blue Jays batter Josh Donaldson was struck by a pitch in the first inning by Edinson Vólquez.

Wolf was at third base for Arizona Diamondbacks pitcher Tyler Gilbert’s no hitter against the San Diego Padres on August 14, 2021.