HOME PLATE UMPIRE
Brock Ballou
Tight zone
60% NRFI
5 games tracked
Career Averages
0.872
Zone Factor
14.4
K / Game
8.2
BB / Game
60%
NRFI Rate
Betting Implications
Tight zone (0.872x) forces pitchers into the heart of the plate. Walk and hit props get a boost.
K factor of 0.859 means 14% fewer strikeouts than average. Be cautious with K over plays.
Season Breakdown
| Season | Games | Zone | K/G | BB/G | NRFI% | K Factor |
|---|---|---|---|---|---|---|
| 2026 | 5 | 0.872 | 14.4 | 8.2 | 60% | 0.859 |
Factor Definitions
Zone Size Factor: Strike zone width relative to league average (1.000). Higher = wider zone, favoring pitchers.
K Factor: Strikeout rate in this umpire's games vs league average. Higher = more Ks.
BB Factor: Walk rate adjustment. Higher = fewer walks (wider zone suppresses walks).
NRFI Rate: % of games with no runs in the first inning. League average is roughly 55%.