Today's matchup
Jack is at Arizona Diamondbacks on the Tuesday, July 21, 2026 slate. He lands on 6 of our boards — hits allowed (59.7/100, #3), earned runs (49.2/100, #23), outs recorded (42.2/100, #28), walks allowed (40.6/100, #18). We project Jack for 3.9 on the hits allowed board. Tap any board for the full breakdown, and check back for the graded result once the game's final.
Recent form
Last time out, Jack struck out 2 over 3.0 innings, 3 earned. His recent starts are in the game log below.
Jack's recent starts
Over his last 5 starts, Jack has 29 strikeouts in 21.7 innings. Strikeouts are where our model has a real, graded edge — his start-by-start log is below.
How the model reads him
Jack's matchup score blends his own rates with the specific spot — the arm he faces and that pitcher's bullpen, the handedness edge, the park, the weather, and his recent form — normalized 0–100 against the rest of the slate. The exact weighting is proprietary and tuned weekly. We publish the score and grade it in the open; the record above is the receipt.