MattGree

MattGree joined the Mario Superstar Baseball Server in May of 2021. In the first season of the Ranked Netplay Ladder he was known as the top grinder of ranked play, playing an astounding 317 ranked games that season. In March of 2022, MattGree began regular uploads of his gameplay.  As of February 2025, his channel has surpassed 1600 subscribers and is the only YouTube channel regularly uploading Netplay content. On the ranked leaderboards, MattGree goes by the nickname the "MutedAssassin" given to him by MattyIce, as in his early days, MattGree would often join Discord voice calls on mute to watch gameplay and then would take down top-level players in ranked play.

Currently, MattGree is heavily involved in the Mario Baseball Community with his YouTube channel, colaborating with other content creators, as a Discord moderator, working on tools for Project Rio, and is behind the OBS Mario Baseball Livestream script, among other things.