“The umpire is blind, it’s terrible” Ryu Hyun-jin’s blown call…93% of ball accuracy impact ‘proved by data’

  • September 3, 2023

“Hernandez must be half blind.”

Ryu Hyun-jin (36, Toronto Blue Jays) and Chris Flexen (29, Seattle Mariners) were facing off against each other in a game that had one thing in common: they were both former KBO players. But the spotlight was really on umpire Angel Hernandez. Hernandez oversaw a botched game between the two teams at Coors Field in Denver, Colorado, on April 2.

Ryu Hyun-jin and Flexen were the victims of a pair of crucial calls. Down 0-2 in the bottom of the fourth inning, Ryu hit a full-count, 88.8-mph fastball to Nolan Jones that sliced perfectly through the top of the strike zone. It wasn’t even a borderline, just well inside the zone.

But umpire Hernandez didn’t call it a strike. Sure, Ryu induced a double play with runners on first and second, but it was a dizzying moment. As a Toronto fan who goes by the nickname “Dave” wrote, “Hernandez must be half blind. Didn’t help either team. Jesus Christ. It was terrible.”

Flexen was pulled in the top of the sixth inning with the game tied 2-2. He threw an 86.2 mph curveball on a 2B2S to Danny Jansen at first base. It was low and outside, in the lower corner of the strike zone, but umpire Hernandez called it a ball. Jansen, who was forced to retire on a strikeout, got another chance to bat and promptly blasted a 91-mph fastball for a two-run homer.

Umpire Hernandez’s calls became increasingly egregious as the game wore on. SPOTV commentators Son Gun-young and Kim Hyung-joon lamented that strikes were balls and balls were strikes, and the data shows why they and the fans were right.온라인바카

Umpire Scorecards, which quantifies the accuracy of Major League Baseball umpires’ calls, posted the results of Hernandez’s call on their X account. For starters, the call was 89% accurate. That’s below the 94% average. He correctly called 156 of 175 balls in the game. His overall consistency was also at 92%. Slightly below the league average of 94%.

He pointed to the aforementioned Ryu’s fourth inning call and Flexen’s sixth inning call as impactful misses. There was even one more. In the bottom of the first inning, Ryu faced leadoff hitter Charlie Blackmon on a 2B2S, 5-pitch 67.5 mph curveball that dug sharply into the body. It crossed the borderline. But umpire Hernandez called it a ball. In the next at-bat, Ryu induced a 90.1-mph fastball to Blackmon on a full count.

The ball was 93% accurate and the strike was 80% accurate. That’s below the 97% and 88% averages, respectively. Nine out of 125 balls were actually strikes, and 10 out of 50 strikes were actually balls. The data shows that Hernandez’s officiating is lacking.

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