In 2018, the Gatemen won their first 4 games and never lost more than two games in a row, finishing the regular season atop the West Division for the first time since 2001. In the postseason, Wareham swept Cotuit in the first-round series and did the same to Falmouth in the semi-final round. In the championship, the Gatemen faced off against East Division champion Chatham. Game 1 at Spillane Field was a back-and-forth battle between aces Ryan Garcia for Wareham and Austin Bergner for Chatham, but the Anglers' defense faltered and was responsible for three unearned Wareham runs that propelled the Gatemen to a 5–3 victory. Game 2 at Veteran's Field was played in two parts due to a Chatham fog-out, but Wareham's timely hitting and a clutch home run robbery by Gatemen right fielder Isaac Collins led Wareham to the title-clinching 9–3 victory. Third baseman Austin Shenton hit .522 with three home runs and 12 RBI to claim postseason MVP honors, and the video of Collins' grab made national headlines and was the top play on ESPN's "SportsCenter". The crown was Wareham's eighth in the modern era, and the team was the first to sweep the CCBL postseason since the playoffs expanded to three rounds.