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MLBumpire2026-08-17
Arizona Diamondbacks at Boston Red Sox
9.3 K/9 vs 8.5 league · +0.8 · 25 games
THE FINDING
Arizona Diamondbacks at Boston Red Sox Home plate: Dan Iassogna. 9.3 strikeouts per nine innings behind the plate this season, across 25 games. League average is 8.5. That's 0.8 more strikeouts per nine than average — the 4th widest zone of 84 umpires with a full sample.
STATS
zone
Wide zone
direction
loose
k9
9.3
leagueK9
8.5
delta
0.8
games
25
rank
4
All insightsArchived 2026-08-17 · mlb_ump_824725_427248