Kauffman Stadium

Kauffman Stadium opened in 1973 and has hosted Kansas City Royals home games for 53 seasons. The open-air mid-century ballpark seats 37,903 fans on grass a grass playing surface in Kansas City, MO. As an open-air park, weather is part of the matchup every game day. Wind direction, temperature, and humidity all materially shift HR probability and overall run-scoring environment, particularly during summer evening games.

Kauffman Stadium plays as among the most extreme pitcher's parks in Major League Baseball. The HR factor of 0.85 and run factor of 0.98 both run substantially below league baseline. Lines often fail to fully account for the venue's suppressive effect, leaving consistent value on offensive prop unders and pitcher prop overs. These numbers come from multi-year MLB run-and-HR park factors and represent how the venue affects offensive output relative to a perfectly neutral park (factor 1.00). The further a park factor moves from 1.00, the more it should influence prop-line evaluation.

For prop bettors, here's how Kauffman Stadium translates into actionable edges. Home run props at Kauffman Stadium are systematically less likely than implied probabilities suggest. Even elite power hitters see a clear performance dip here — particularly for opposite-field power and routine fly-ball contact. Because Kauffman Stadium is an open-air venue, always check weather before placing bets. Wind direction matters more than temperature: a 10+ km/h wind blowing toward center field can boost HR probability by 15-25% above the park's baseline factor, while wind blowing in can suppress HR probability by similar amounts. ProprStats automatically applies live weather adjustments from Open-Meteo to every prop-scoring calculation for this venue.