Representing United States, Grumbles is active in the Age of Empires II scene. Grumbles has competed in 72 Age of Empires II matches so far. Grumbles focuses mainly on ranked random map team matches.

Grumbles picks Franks more than any other civilization—25.0% of the time. flank is Grumbles's strongest position, boasting 33.3% wins across 3 games. Grumbles carries an ELO of 966 on the RM Team ladder.

Grumbles has a 38.5% win rate in RM Team over 26 games.