Heavy lifting, squats, power training: How William Contreras’ fitness regimen helped him win the World Series MVP Award

William Contreras has created history. The Milwaukee Brewers' catcher emerged as one of the top performers of the 2026 MLB postseason, earning the World Series Most Valuable Player award after he enabled his team to win their first-ever championship. Contreras was at peak form, batting .381 across five games and recording four runs batted in. He also played a significant role in guiding a dominant pitching staff that posted a bullpen ERA of 1.34 in October. The Brewers ended the playoffs with a remarkable 11-2 record, while Contreras made key plays in the decisive game, including a vital sixth-inning double and four caught-stealing attempts by Tampa Bay Rays baserunners. In some interviews, the baseball catcher shared the regimen that kept him fit.

A Look Into His Fitness Regimen

In an interview with Daniel de Mondesert, Milwaukee Brewers Major League Game Preparation Specialist & Latin American Interpreter, and Lori Nickel, the catcher shared his regimen. When asked if he did work on his core, quads, and flexibility. Contreras explained that he focused on the smaller muscles and lifted heavy weights.

In another chat with the Milwaukee Journal Sentinel, the athlete revealed further details of his fitness regimen:


He incorporates intense compound and power movements such as weighted squats with Rogue plates, deadlifts, pull-ups, and rows to build lower-body stability and upper-body power required for catching and hitting.

His routine also includes lifting weighted medicine balls against a wall and lifting weights from off-balance positions to imitate he unstable, rotational mechanics of catching and swinging.

According to MLB.com, he also does indoor cage work, tee drills, flips, and live-pitching simulations using advanced tech like the Trajekt Arc machine to manage the wear and tear he sustains from early-on-field swings.