Preview for Tuesday, September 22, 2026. Schedule and player information can change.
Arizona Diamondbacks at Colorado Rockies
Arizona sends Michael Soroka to the mound against a Colorado club that will counter with Kyle Freeland, and the pitching matchup tilts clearly toward the Diamondbacks on the numbers available. Soroka has worked approximately 104.3 innings this season with a 3.45 ERA and a WP-calculated FIP of 3.15, both marks pointing to a pitcher who has limited runs and controlled the underlying process. Freeland, by contrast, has thrown approximately 128.3 innings but carries a 6.38 ERA and a 5.08 FIP, figures that sit well behind Soroka's across the board.
Looking at the team-level indicators, Colorado actually holds a slight offensive edge with a WP-estimated wOBA of 0.320 compared to Arizona's 0.310, so the Rockies' lineup profile grades out a touch better than the Diamondbacks' on paper. That advantage is undercut by Colorado's pitching staff numbers, though, as the team ERA of 5.57 and FIP of 4.91 both trail Arizona's staff-wide ERA of 4.11 and FIP of 4.40 by a wide margin. Arizona's overall run-prevention profile, both from Soroka individually and the team totals, gives the Diamondbacks the stronger foundation heading into this one.
On the injury side, Arizona has Kyle Amendt listed on the 60-Day IL, Ryan Bruno listed on the 60-Day IL, and Yordin Chalas listed on the 7-Day IL, while Colorado has Tyler Bell listed as Out, Brody Brecht listed on the 60-Day IL, and McCade Brown listed on the 60-Day IL. Taken together, the pitching figures and team ERA and FIP marks favor Arizona, even with Colorado's marginally better projected offensive output.
Statistical scope: MLB Stats API; 2026 regular season season-to-date; exact statistical through-date not supplied.
WP selection: Diamondbacks moneyline. Confidence: Confident.
The selection is supplied separately by WP. The comparisons above do not establish why the model made this selection.
WP home-run candidate for Diamondbacks: Corbin Carroll. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.
WP home-run candidate for Rockies: Adael Amador. The selection uses roster and season-stat inputs; it does not establish a confirmed batting lineup or favourable betting odds.
Predictions are uncertain; no outcome is guaranteed. Check the picks page for the latest available selections.