Mariners vs Athletics Prediction, Odds, Moneyline, Spread & Over/Under for June 21

Updated: Sep 10, 5:00pm UTC

In MLB action on Tuesday, the Seattle Mariners face the Oakland Athletics.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's what you need to know.

Mariners vs Athletics Game Info

All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
Moneyline: SEA: (-146) | OAK: (+124)
Spread: SEA: -1.5 (+115) | OAK: +1.5 (-138)
Total: 8.5 -- Over: (-114) | Under: (-106)

The Mariners will start Marco Gonzales (3-7) against the Athletics and James Kaprielian (0-4).

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (52.2%)

The Mariners vs Athletics moneyline has Seattle as a -146 favorite, while Oakland is a +124 underdog at home.

The Athletics are hosting the Mariners, and are +1.5 on the runline. The Athletics are -138 to cover the spread, and the Mariners are +115.

A total of 8.5 runs has been set for the Mariners-Athletics contest on June 21, with the over available at -114 and the under at -106.

The Mariners have won in 12, or 54.5%, of the 22 contests they have been named as odds-on favorites in this year.
Seattle has a win-loss record of 6-6 when favored by -142 or better by oddsmakers this year.
Seattle and their opponents have gone over in 32 of their 68 games with a total set by sportsbooks this season.
The Athletics have compiled a 17-31 record in games they were listed as the moneyline underdog (winning 35.4% of those games).
Oakland has a record of 12-25 when it has played as a moneyline underdog with odds of +120 or longer (32.4%).
In the 60 games oddsmakers have set an over/under for Oakland, it has combined with opponents to go over the total 25 times (25-32-3).