Houston Astros vs. Seattle Mariners Betting Preview

The Seattle Mariners are set to square off against the Houston Astros at Safeco Field. ATTSN Southwest will be showing the action and the game is scheduled to get going at 10:10 p.m. ET.

Houston Astros vs. Seattle Mariners Odds

Seattle (+145) is the underdog to Houston (-155) and oddsmakers have set the Over/Under for this game at 7.5 runs. Odds for wagering on the game’s total sit at -130 for the over and +110 for the under. Runline odds sit at -110 for taking the Astros -1.5 runs and -110 for the Mariners +1.5 runs.

The Mariners are 9-6 SU and 11-3 ATS. They’ve gained 5.3 units for moneyline bettors and 7.7 units against the spread (ATS). Seattle has covered the spread six times in its last seven games and the total has gone over in four of those seven. The Astros are 11-7 SU and have gone 7-10 ATS. In total, the team’s lost 4.3 units for bettors taking the moneyline in the season’s early going and 5.0 units ATS. Houston has covered the spread only once in its last seven games and the under has hit in five of those seven.

Seattle games have an over/under record of 9-5 so far in 2018. Houston has been a decent under bet with a total record of 5-12.

The right-handed Gerrit Cole will get the start for the visiting Stros. Cole is 1-0 with a 1.29 ERA and 36 strikeouts. He has yet to face the Mariners this year and did not record a start against them in 2017, either.

The Mariners will turn to righty Mike Leake (2-0, 3.50 ERA) to the mound. Leake has eight strikeouts and nine walks to his credit, as well as a 1.33 WHIP. Leake did not record a start against the Astros in 2017.

Seattle’s pitching staff has given up 4.5 runs per game overall in 2018 as a unit. Its starting pitching staff has a 4.96 ERA, 1.41 WHIP and 7.7 strikeouts per nine innings. The bullpen has a 4.00 ERA, 1.07 WHIP and 9.7 K/9. In five games against divisional opponents, Mariners starters have an ERA of 3.71 and the bullpen’s ERA is 3.93.

Seattle’s offense is putting up 4.3 runs per contest, including 4.2 per game against divisional foes and 4.2 per game over its last five. The team has slashed .239/.283/.448 over its last five games and is 3-2 SU during that stretch.

Second baseman Robinson Cano and outfielder Mitch Haniger have led the Mariners’ offense this year. Cano is slashing .333/.484/.479 with 16 hits, five RBIs and 13 runs scored, and Haniger is batting .255 with four homers, 15 RBIs and seven runs.

Cano performed well against righties at home last year, slashing .321/.393/.542 in 214 such plate appearances (compared to his overall season line of .280/.338/.453).

In the other dugout, Houston’s pitching staff allowed 2.9 runs per game and its starters own a 2.54 ERA, 1.07 WHIP and 12.15 K/9. The bullpen has logged an ERA of 2.77, along with a K/9 of 9.87.

The Astros offense has slashed .235/.324/.363 on its way to 4.0 runs scored per game this season, including 4.0 runs per game against divisional foes and 2.8 per game over the team’s last five contests (2-3 SU).

Outfielder Josh Reddick and catcher Brian McCann have led Houston’s offense. Reddick is hitting .273/.396/.500 with 12 hits, eight RBIs and eight runs scored, while McCann is slashing .333/.463/.424 with 11 hits, three RBIs and six runs scored.

McCann performed well against righty pitching on the road last year. Over 155 such plate appearances, he maintained a slash line of .269/.348/.522 (compared to his overall season line of .241/.323/.436).

The Astros have lost 4.8 units and are 4-7 ATS when facing a right-handed starting pitcher this season. The over has cashed in two of those games, as opposed to nine that’ve hit the under against righties. On the other hand, the Mariners have netted 2.1 units and are 6-3 ATS when facing a right-handed starting pitcher. The over has hit in seven of those games, as opposed to two that’ve cashed the under.

Houston Astros at Seattle Mariners Free Pick

Predictions: SU Winner – Astros, ATS Winner – Astros, O/U – OVER

Betting Notes

  • The Astros have hit eight home runs in their last 10 games, including five over their last five.
  • Seattle has averaged 19.8 runs + hits + errors over its last 10 contests and 19.8 over its last five.