D-Backs vs Royals Betting Guide and Expert Picks September 8th, 2026

-110O/U: 9
(-110/-110)-110

Arizona Diamondbacks – 1st Five Innings (F5) Moneyline (-110)
Corbin Burnes has been one of the luckiest hurlers in baseball on balls in play since the start of last season with a .255 BABIP and ought to see that luck normalize going forward.
Explain: Casual fans and the mainstream media don’t realize that pitchers have limited control over the hits they allow, which can drastically skew their results and the way the market treats them.
Ildemaro Vargas – Over/Under 0.5 Hits (-205/+160)
Ildemaro Vargas is an extreme groundball batter and matches up with the strong infield defense of Kansas City (#1-best on the slate).
Explain: This player’s skill set matches up poorly with the opposing team’s defensive strength, which may lead to worse-than-usual performance.
The 7.2% Barrel% of the Arizona Diamondbacks makes them the #25 club in MLB this year by this metric.
Explain: Barrel% measures how often a player hits the ball at the optimal exit velocity and launch angle and is a terrific measure of underlying power.

Michael Wacha – Over/Under 17.5 Pitching Outs (-130/+100)
Michael Wacha has been given more leash than the average pitcher this year, throwing 5.0 more adjusted pitches-per-game than the average starting pitcher.
Explain: Pitchers with a longer leash are more likely to go deeper into games and record more outs.
Michael Massey – Over/Under 0.5 Hits (-205/+155)
Michael Massey is projected to hit 5th in the lineup in this matchup, which would be an upgrade from his 76% rate of hitting in the bottom-half of the lineup this season.
Explain: The higher in the order a player bats, the more plate appearances he will get and the more opportunities he will get to hit the Over for every market. A player who hits higher in the order than he normally does may provide extra value opportunity since the market may be based on him hitting lower.
Michael Massey – Over/Under 1.5 Total Bases (+140/-185)
Michael Massey pulls a high percentage of his flyballs (38.3% — 94th percentile) and has the misfortune of hitting them towards MLB’s deepest RF fences in today’s matchup.
Explain: This player’s skill set does not match up particularly well with the park he’s in today, which may lead to worse-than-usual performance.

Kansas City Royals – Run Line +1.5 (-175)
The Kansas City Royals have hit the Run Line in 13 of their last 20 games (+6.50 Units / 22% ROI)
Arizona Diamondbacks – Over/Under 2.5 1st Five Innings (F5) Team Total (+115/-145)
The Arizona Diamondbacks have hit the 1st Five Innings (F5) Team Total Under in 16 of their last 22 games (+9.45 Units / 35% ROI)
Gabriel Moreno – Over/Under 0.5 Home Runs (+560/-1000)
Gabriel Moreno has hit the Home Runs Over in 3 of his last 9 away games (+18.80 Units / 209% ROI)

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