The Kansas City Royals are moving the outfield fences in by 10 feet at Kauffman Stadium, dropping the height from 10 feet to 8.5. The goal is to create a more neutral ballpark for home run hitting.

General manager J.J. Picollo wants hitters to feel confident at home. Analytics found the stadium’s wind and altitude made fences play five feet longer than listed, hurting the offense.

The team analyzed four years of climate data to find a symmetrical design. This change supports a lineup featuring Bobby Witt Jr. and top prospects, removing the need for hitters to alter their swings.