Jose Berrios has a 6.75 ERA. His FIP is 5.63. He’s walked 16% of the batters he’s faced this season. He’s averaging more than 20 pitches per inning, and in two starts he has completed just 9.1 innings. He also has three good, major league-quality pitches with the potential for a fourth. He’s struck out more than 30% of the batters he’s faced. He could win Rookie of the Year, and — with arguments to come from Lucas Giolito, Tyler Glasnow, Alex Reyes, Blake Snell, and Julio Urias — he might be the most exciting pitcher to make his big-league debut this season.
Berrios doesn’t turn 22 until the end of the month, but he has ridden a quick and steady ascent to the majors. In 2014, he dominated High-A and held his own in a handful of starts at Double-A. Kiley McDaniel ranked him the 24th-best prospect in baseball during the 2014-15 preseason before he proceeded to mow down opponents in Double-A and Triple-A, striking out more than 25% of batters at both levels and walking less than 6% of them. Berrios entered Spring Training with an outside shot to win a starting job, but struggled with command in both his major-league and minor-league games.
In three minor-league starts this year, Berrios still produced his share of walks. But also struck out 20 of the 66 batters he faced and allowed just three runs, earning a promotion when Ervin Santana hit the disabled list. His first two starts have been a mixed bag, featuring both flashes of the potential that make him a top prospect with a comp to Pedro Martinez and show how he can be successful in the big leagues, but also an inability to consistently attack hitters in the strike zone, leading to unfavorable counts and walks.
The chart below shows league-average plate-discipline numbers as well as Berrios’ own numbers over his first two starts.
|League Average||29.3 %||63.1 %||45.4 %||62.3 %||85.9 %||77.9 %||47.7 %|
|Jose Berrios||28.3 %||54.2 %||39.7 %||60.0 %||84.4 %||74.7 %||43.9 %|