Miguel Sime Jr. impresses with fastballs over 100 mph in the Spring Breakout

JUPITER, Florida. — Young talent stole the spotlight again in spring training, this time with Dominican Miguel Sime Jr., who at just 18 years old dazzled by reaching speeds of over 100 miles per hour on the mound during the Spring Breakout.

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The right-handed pitcher, prospect of the Washington Nationals, starred in one of the most striking moments of the game by facing JJ Wetherholt, considered one of the main talents in baseball. In a full count, Sime threw a 100.8 mph fastball that caused a missed swing so violent that it even made the batter’s helmet fly off. Despite starting the inning at a 3-0 disadvantage, the young pitcher showed composure and recovery ability, combining his repertoire with effective sliders before closing with his powerful high fastball. Sime’s dominance was no accident. Of his 21 pitches in the game, nine exceeded 100 mph, confirming his status as one of the most electrifying pitching prospects in the minor leagues. Selected in the fourth round of the 2025 Draft, the pitcher of Dominican descent has demonstrated a rapid evolution, backed by his work ethic and consistency in the development of his tools. “It’s exactly where I want to be,” Sime expressed after the meeting, making it clear that, although his speed is already elite, his focus remains on perfecting his mechanics and command.