The Seattle Mariners (53-51) and Arizona Diamondbacks (56-49) play a rubber match on Sunday at 4:10 PM ET, with the series deadlocked at 1-1.
Oddsmakers project the Mariners as a small favorite (-111 moneyline odds) against the Diamondbacks (-108). The contest has an over/under of 8.
The betting trends in the article below are based off odds valid as of July 30, 2023 at 3:19 PM ET. Ready to bet? Click here to get the best DraftKings Sportsbook deposit bonus!
Mariners vs Diamondbacks Betting Lines
| Favorite | Favorite Moneyline | Underdog Moneyline | Total |
|---|---|---|---|
| Mariners | -111 | -108 | 8 |
Mariners Betting Insights
- The Mariners have entered the game as favorites 69 times this season and won 37, or 53.6%, of those games.
- Seattle is 36-31 this season when entering a game favored by -111 or more on the moneyline.
- The sportsbooks’ moneyline implies a 52.6% chance of a victory for the Mariners.
- Games involving Seattle has gone over the total set by bookmakers in 51 of 104 chances this season.
- The Mariners are 48-56-0 ATS in their 104 games with a spread this season.
Mariners Last 10 Games Trend
| Stat | Avg/Total |
|---|---|
| Record | 6-4 |
| Runs Per Game | 5.1 |
| HR | 18 |
| ERA | 4.35 |
| K/9 | 10.4 |
Diamondbacks Betting Insights
- The Diamondbacks have been victorious in 26, or 47.3%, of the 55 contests they have been chosen as underdogs in this season.
- This season, Arizona has come away with a win 26 times in 55 chances when named as an underdog of at least -108 or worse on the moneyline.
- The moneyline set for this matchup implies the Diamondbacks have a 51.9% chance of coming away with a victory in the contest.
- Arizona and its opponents have gone over in 47 of its 105 games with a total set by sportsbooks this season.
- The Diamondbacks are 58-47-0 against the spread in their 105 games with a line set by sportsbooks this season.
Diamondbacks Last 10 Games Trend
| Stat | Avg/Total |
|---|---|
| Record | 3-7 |
| Runs Per Game | 4.3 |
| HR | 11 |
| ERA | 6.17 |
| K/9 | 7.3 |
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Mariners Probable Pitcher – Luis Castillo
- Castillo and his team are 6-15-0 ATS this season when he starts.
- The right-hander last pitched on Monday, when he gave up two earned runs and allowed four hits in seven innings against the Minnesota Twins.
- Castillo has pitched five or more innings in 21 straight games and will look to extend that streak.
- He has six appearances with no earned runs allowed in 21 chances this season.
- When Castillo starts a game and his team is the favorite on the moneyline, they have a record of 8-9.
- Castillo’s team has won nine of his 21 starts.
- In games Castillo has started this season, the teams are 11-10-0 at hitting the over.
Mariners Relief Pitchers
| Name | Relief App. | IP | Ks | ERA | Holds | Saves |
|---|---|---|---|---|---|---|
| Matt Brash | 49 | 42.1 | 74 | 3.61 | 13 | 1 |
| Paul Sewald | 45 | 43 | 60 | 2.93 | 0 | 21 |
| Justin Topa | 44 | 40.2 | 37 | 2.66 | 15 | 2 |
| Gabe Speier | 43 | 35 | 37 | 3.86 | 10 | 0 |
| Tayler Saucedo | 30 | 30.1 | 30 | 2.37 | 0 | 0 |
Diamondbacks Probable Pitcher – Merrill Kelly
- Kelly (9-4) is going for his 10th win when he takes the mound first for the Diamondbacks in his 18th start of the season. He has a 3.12 ERA in 101 2/3 innings pitched, with 103 strikeouts.
- In his last appearance on Wednesday against the St. Louis Cardinals, the righty threw six innings, allowing one earned run while surrendering four hits.
- Kelly will try to extend a 17-game streak of pitching five or more innings (he’s averaging 5.9 frames per appearance).
- He has held his opponents without an earned run in one of his 17 appearances this season.
- The Diamondbacks are 4-3 in Kelly’s seven starts this season that they were the underdog on the moneyline.
- Kelly’s team has an 11-6 record over his 17 starts.
- Kelly has started 17 games with a total set by oddsmakers this season. The teams have combined to hit the over in six of them.
Diamondbacks Relief Pitchers
| Name | Relief App. | IP | Ks | ERA | Holds | Saves |
|---|---|---|---|---|---|---|
| Scott McGough | 45 | 51.1 | 63 | 4.38 | 13 | 8 |
| Miguel Castro | 44 | 42.1 | 34 | 4.04 | 9 | 7 |
| Kyle Nelson | 43 | 39.2 | 52 | 2.95 | 7 | 0 |
| Andrew Chafin | 40 | 34.1 | 49 | 4.19 | 12 | 8 |
| Kevin Ginkel | 36 | 40.1 | 37 | 2.23 | 1 | 3 |
Mariners Hitting Trends
- The Mariners have racked up two or more long balls in 36 games this season, and are 26-10 in those outings.
- Seattle has racked up five or more extra-base hits in 17 games this season, and has gone 16-1 in those contests.
- The team has notched eight or more hits in 63 games this season, and is 41-22 in those contests.
- Seattle is 47-7 in games this season when it put up at least five runs.
- The Mariners have drawn at least five walks in 37 games this season, and are 25-12 in those contests.
Diamondbacks Hitting Trends
- They’ve hit two or more homers in 36 games this season and are 25-11 in those matchups.
- Arizona has gone 18-7 this season when collecting five or more extra-base hits as a team.
- They have a record of 53-26 this season when collecting eight or more base hits in a game.
- Arizona has won 51 of its 67 games this season in which it scored more than four runs.
- They have won 19 of their 38 games this season in which they’ve drawn more than four free passes.
Mariners vs. Diamondbacks Prediction
Moneyline Pick: Diamondbacks (-108)
Over/Under Pick: Under (8)
Predictions are calculated by a data-driven algorithm derived from offensive performance metrics and probable starting pitchers.
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