Prediction, Preview, and Odds
#915 Seattle Mariners vs.
#916 Baltimore Orioles
Tuesday, April 13, 2021 at 4:05pm EDT
Written by Blake V.

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Seattle enters its series with Baltimore coming off wins in three of its last four games. The Mariners picked up a win over Minnesota on Sunday to clinch the series victory. Baltimore was swept by Boston over the weekend in a rematch of a series from opening weekend.

Monday's game was postponed due to rain. This is Game 1 of a doubleheader.

Mariners enter series with momentum

Seattle got off to a 2-3 start this season, but it has now won three of its last four games. The Mariners consolidated their series with the White Sox by winning Wednesday’s series finale. They built on that momentum with wins in two of their three games at Minnesota over the weekend. The Twins picked up a win in the opener before losing in extras on Saturday. Seattle notched an 8-6 win in Sunday’s finale, erasing a 6-0 deficit. Third baseman Kyle Seager homered twice, including a go-ahead three-run shot in the top of the ninth.

The Mariners have had some predictable struggles at the plate this season, though. They are No. 24 in the MLB in team batting average at .207. Baltimore enters this game with a pitching staff that is No. 17 in team ERA at 4.07. Left-handed pitcher Justus Sheffield will make the start for Seattle on Monday night. He is coming off a rough start in his season debut, allowing six runs on eight hits and two walks in a 6-0 loss to the White Sox. Sheffield has not faced the Orioles since 2019, where he allowed four runs across 4.1 innings.

Orioles hoping to bounce back

Baltimore raced out to a 3-0 record this season when it swept Boston at Fenway Park. It has been all downhill in the week following that hot start, as the Orioles lost two out of three against the Yankees before being swept in a rematch with the Red Sox over the weekend. They allowed Boston to score 27 combined runs in the three losses, including a 14-spot on Sunday afternoon. The Red Sox scored four runs in the third inning, five in the fifth and added four in the eighth. Baltimore had three players record multiple hits, including first baseman Maikel Franco. He notched a three-run homer and an RBI-single.

The Orioles are No. 19 in the MLB in team batting average at .217. Center fielder Cedric Mullins has been fantastic at the dish, hitting at a .459 clip to open the season. Seattle’s pitching staff ranks No. 25 with a team ERA of 5.30. Right-handed pitcher Dean Kremer will take the mound for Baltimore on Monday night. He lasted just three innings in his season debut and has only made five big league starts in his career. The Yankees notched three runs on five hits and four walks last week, striking out five times against Kremer.

Best Bets for this Game

Full-Game Side Bet

Insiders Status:


These teams come into the start of this series trending in opposite directions. Baltimore has dropped five of its last six games and was not competitive in four of those losses. Seattle has been playing great baseball over the last few days. Neither starting pitcher has a ton of confidence coming into this one, but Seattle’s offense has been playing better. Seager is capable of doing a lot of damage, which he showed on Sunday afternoon. The Orioles have lost their last four games with Kremer on the mound.

Prediction: Seattle -113

Full-Game Total Pick

Insiders Status:


These are two of the worst starting pitchers in the American League, so this is shaping up to be a high-scoring game. Baltimore’s offense has not been good over the last few games, but it showed it can do damage when it opened the season in Boston. Seattle has several big bats and its offense is coming into this series with some momentum. The Mariners have gone over at a 10-2-1 clip in their last 13 games against a starter with a WHIP greater than 1.30, which is the case in Monday’s matchup.

Prediction: Over 9

Written By Blake Von Hagen , "Blake V."

Blake is a lifelong sports fan and hoops junkie. Prior to joining our team at Winners & Whiners and StatSalt, Blake worked for several newspapers and websites. He enjoys combining his beat writing expertise with the knack for finding the winning edge in a matchup. Remember, it’s a marathon, not a sprint.