EDGEAI

MLBhitter vs arsenal

+10 pts

Christian Koss is a worse strikeout risk than usual tonight, and his season strikeout rate does not show it. He strikes out 33% of the time against the kind of pitches Quinn Mathews throws, compared with 24% against everyone else — 10 points worse. The reason is the slider: Quinn Mathews throws it 24% of the time, and Christian Koss strikes out 45% of the time against it across 20 plate appearances. A season strikeout rate averages every kind of pitcher he has faced, so a matchup like this disappears into it.

Published Monday, September 14, 2026

Christian Koss is a worse strikeout risk than usual tonight, and his season strikeout rate does not show it. He strikes out 33% of the time against the kind of pitches Quinn Mathews throws, compared with 24% against everyone else — 10 points worse. The reason is the slider: Quinn Mathews throws it 24% of the time, and Christian Koss strikes out 45% of the time against it across 20 plate appearances. A season strikeout rate averages every kind of pitcher he has faced, so a matchup like this disappears into it.

THE BET THIS ARGUED FOR

Christian Koss Over 0.5 strikeouts

THE NUMBERS

player id
683766
player name
Christian Koss
team
San Francisco Giants
matchup
San Francisco Giants @ St. Louis Cardinals
pitcher name
Quinn Mathews
direction
vulnerable
headline
+10 pts
weighted krate
0.333
own baseline
0.235
k delta
0.098
weighted avg
0.176
mix covered
0.804
detail
Christian Koss is a worse strikeout risk than usual tonight, and his season strikeout rate does not show it. He strikes out 33% of the time against the kind of pitches Quinn Mathews throws, compared with 24% against everyone else — 10 points worse. The reason is the slider: Quinn Mathews throws it 24% of the time, and Christian Koss strikes out 45% of the time against it across 20 plate appearances. A season strikeout rate averages every kind of pitcher he has faced, so a matchup like this disappears into it.

This record was written when the finding was first published and has not been edited since. The numbers and the wording are what our engines produced on the day.