The San Diego Padres host the Arizona Diamondbacks on July 9, 2026. First pitch from Petco Park is scheduled for 9:40 p.m. EDT. The game will be broadcast on ARID.
The Padres are favored by -126 on the moneyline and by -1.5 on the run line. The Diamondbacks are +104 on the moneyline and +1.5 on the run line. The total is set at 8.5 runs.
Find my MLB picks and Diamondbacks vs Padres prediction below, as well as probable pitchers, weather report, and more.
Diamondbacks vs Padres Prediction
- Diamondbacks vs Padres Pick: San Diego Padres Moneyline (-117)
My Diamondbacks vs Padres best bet is on San Diego to win outright. Make sure to find the best odds by checking our live MLB odds page.
Diamondbacks vs Padres Odds
| Diamondbacks Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 +166 | 8.5 -124o / +103u | +104 |
| Padres Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 -202 | 8.5 -124o / +103u | -126 |
- Diamondbacks vs Padres moneyline: Diamondbacks +104, Padres -126
- Diamondbacks vs Padres over/under: 8.5 (-124o / +103u)
- Diamondbacks vs Padres spread: Padres -1.5 (+166 ), Diamondbacks +1.5 (-202)
Diamondbacks vs Padres Polymarket MLB Odds
Diamondbacks vs Padres Probable Pitchers
| RHP Merrill Kelly (ARI) | Stat | RHP Griffin Canning (SDP) |
|---|---|---|
| 6-8 | W-L | 1-6 |
| -0.6 | fWAR (FanGraphs) | 0.1 |
| 5.71 / 7.82 | ERA / xERA | 6.71 / 4.81 |
| 6.03 / 5.29 | FIP / xFIP | 5.08 / 4.71 |
| 4.7% | K-BB% | 8.8% |
| 37.9% | GB% | 44.1% |
| .291 | BABIP | .321 |
| 89 | Stuff+ | 89 |
| 101 | Location+ | 91 |
Diamondbacks vs Padres MLB Betting Preview
Arizona Diamondbacks Betting Preview
The Arizona Diamondbacks have lost 11 of their past 17 games and are two games below .500 as we approach the break. They have plateaued since their appearance in the 2024 World Series, and change is needed across management and the roster.
Zac Gallen and today's starter, Merrill Kelly, were once staples in the rotation, but both have lost what once made them great. Neither would continue to pitch regularly on most rosters, yet their contracts are too big for Arizona to ignore.
The offense has also become an issue in recent months. Ketel Marte and Corbin Carroll carry the load, while 2025 breakout Geraldo Perdomo fails to recreate his magic from last season.
There was a spark in Ildermo Vargas's late-stage breakout for several weeks, but that has died down since May. Nolan Arenado had his own hot streak last month that was cut short by a hamstring injury.
There is no chemistry on offense. This may stem from Ketel Marte's alleged turmoil with teammates and the organization, but a resolution there is unlikely. The Diamondbacks have repeatedly stated that Marte is not on the trade block.
San Diego Padres Betting Preview
The Padres are the definition of streaky. They have just won three of their past four games after losing eight straight against the Dodgers and Cubs. Before the losing streak, they had won four straight!
Nevertheless, the team finds itself back to .500 and in a weird spot entering the All-Star break. The offense is improving in recent weeks, while the bullpen remains one of the league's best.
However, this rotation is egregious. Aside from Michael King, there is not one starter who would cut it on a "normal" contender's rotation.
Walker Buehler, German Marquez, JP Sears, and today's starter, Griffin Canning, are among baseball's worst starters. Even King, despite his 3.41 ERA, is struggling! His peripheral stats are all one full run above that ERA.
The offense could return to top-ten form, and winning games would still be an uphill battle due to their starters. The organization is in limbo, and how they approach the trade deadline will be telling of their future direction.
Diamondbacks vs Padres Pick, Betting Analysis
Merrill Kelly versus Griffin Canning in 2026 is the starting pitcher version of the "Coughing Baby/Coughing Baby" meme. Both starters' ERAs are above 5.50, while Canning's is as high as 6.71!
However, Canning has been unlucky this season. His 6.71 ERA is backed by a 4.81 xERA, 4.71 xFIP, and 4.76 SIERA.
Meanwhile, Kelly's 5.71 ERA is backed by a 7.81 xERA, 5.28 xFIP, and 5.37 SIERA. He is not unlucky whatsoever.
Furthermore, Canning's splits favor him in Petco Park. He owns a solid 16.1% K-BB and 3.64 xFIP at home. Lefties are what trouble Canning overall, but Arizona does not have enough to demolish him early.
San Diego may utilize an opener like Wandy Peralta to get Canning's start past Diamondbacks' star Corbin Carroll.
Both the Diamondbacks and the Padres rank among the league's worst offensively this season with an even 89 wRC+, but the past 30 days tell a different story. Arizona's 87 wRC+ continues to sit amongst the lower end (24th), while the Padres' 104 wRC+ is 17th.
With the advantage in starting pitching, offense, and bullpen, the Padres are a great bet at a near-even money line.
Pick: San Diego Padres Moneyline (-117)
