HOME PLATE UMPIRE
Dan Iassogna
Average zone
50% NRFI
8 games tracked
Career Averages
0.997
Zone Factor
18
K / Game
7.9
BB / Game
50%
NRFI Rate
Betting Implications
Average-sized zone (0.997x). No significant umpire-driven lean in either direction.
K factor of 1.074 means games called by Dan Iassogna produce 7% more strikeouts than league average. Consider bumping K over confidence.
Season Breakdown
| Season | Games | Zone | K/G | BB/G | NRFI% | K Factor |
|---|---|---|---|---|---|---|
| 2026 | 8 | 0.997 | 18 | 7.9 | 50% | 1.074 |
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%.