The St. Louis Cardinals (8-13) and Seattle Mariners (10-11) meet Sunday to wrap-up their 3-game series. First pitch from T-Mobile Park is set for 4:10 p.m. ET. Let’s analyze BetMGM Sportsbook’s lines around the Cardinals vs. Mariners odds and make our expert MLB picks and predictions for the best bets.
Season series: Mariners lead 2-0
St. Louis lost 5-4 on Saturday after losing 5-2 in the opener and the Cardinals have now lost 2 straight series. Once again the Cardinals got off to an early lead, up 3-1 in the 3rd, but a 2-run HR from Mariners RF Teoscar Hernandez tied it up in the 6th, and Seattle scored twice more in the 7th.
The Mariners have now won back-to-back games after dropping 3 straight to the Milwaukee Brewers. Seattle is looking to get to a .500 record both at home and overall while simultaneously sweeping the Cardinals.
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Cardinals at Mariners projected starters
RHP Jack Flaherty vs. RHP Chris Flexen
Flaherty (1-2, 2.95 ERA) makes his 5th start. He has a 1.41 WHIP, 7.2 BB/9 and 7.2 K/9 in 21 1/3 IP.
- Last start vs. Seattle was July 2, 2019: 4 2/3 IP, 7 H, 4 ER, 4 BB, 7 K in a no-decision loss
- Was 1-0 in 4 road appearances (3 starts) last year: 4.80 ERA, 15 IP, 15 H, 8 ER, 13 BB, 11 K
Flexen (0-3, 7.79 ERA) makes his 4th start. He has a 1.73 WHIP, 4.2 BB/9 and 5.7 K/9 in 17 1/3 IP.
- Last start vs. St. Louis was April 20, 2019, as a member of the New York Mets: 4 1/3 IP, 7 H, 5 ER, 4 BB, 0 K, and a loss
- Was 5-4 in 10 home starts last year (14 appearances); 61 1/3 IP, 64 H, 31 ER, 16 BB, 47 K
Cardinals at Mariners odds
Provided by BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 8:24 a.m. ET.
- Moneyline (ML): Cardinals -110 (bet $110 to win $100) | Mariners -110 (bet $110 to win $100)
- Run line (RL)/Against the spread (ATS): Cardinals -1.5 (+145) | Mariners -1.5 (-175)
- Over/Under (O/U): 8.5 (O: -115 | U: -105)
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Cardinals at Mariners picks and predictions
Prediction
Cardinals 8, Mariners 3
Moneyline
BET CARDINALS (-110).
The Cardinals, despite dropping multiple series, have only been swept once. In every series except vs. Atlanta they have been able to win at least 1 game, even after going down 2-0. The Cardinals will continue that streak as they have proven they can get the lead on Seattle, but haven’t yet been able to capitalize on it.
Run line/Against the spread
BET CARDINALS -1.5 (+145)
Only 1 of the Cardinals 8 wins has been by 1 run, the rest have been 2-plus run victories. If you expect the Cardinals to win this game then expect for them to cover the run line as well, as that is what they have done in wins all season.
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Over/Under
LEAN OVER 8.5 (-115).
The Over is 4-0 in the Cardinals last 4 games following a loss and 5-0 in their last 5 when the opponent scored 5+ runs in their last game. For Seattle the Over is 7-0 in Flexen’s last 7 interleague starts.
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