Mariners vs. Yankees Prediction, MLB Picks for Thursday, August 13

The Seattle Mariners and New York Yankees will put a bow on a three-game series on Thursday, August 13, at 1:35 p.m. ET. Ahead of Thursday afternoon’s matchup, the Yankees are heavily favored at home with a 1.63x payout to secure a victory on PrizePicks Team Picks.

Following a 4-1 victory to begin the series, New York defeated Seattle 10-5 on Wednesday. Therefore, the Mariners are looking to avoid a sweep and snap a six-game losing streak on Thursday.

Below, we'll break down our Mariners vs. Yankees prediction and picks for Thursday’s MLB contest, including the run line, over/under, and key player picks for PrizePicks.

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Mariners vs. Yankees Prediction, Winner Payout, Over/Under – Thursday, August 13

To conclude the series, Mariners SP Logan Gilbert (3.53 xFIP across 139.1 IP) and Yankees SP Max Fried (3.58 xFIP across 81.1 IP) will square off on the mound.

After posting a 3.44 ERA and 1.03 WHIP in 2025, Gilbert is producing a 3.42 ERA and 1.00 WHIP in 2026, while his xERA (3.73) and strikeout rate (26.4%) are in the 63rd percentile or better, per Baseball Savant. The biggest concerns with Gilbert are the fact he’s in the 22nd percentile or worse in barrel rate (10.4%) and hard-hit rate (42.2%).

Fried has missed some time due to injury this season, but he’s still in the 94th percentile or better in xERA (2.37) and xBA (.192). In his last start against the Atlanta Braves (his former team), Fried had his best outing since returning from the injured list on July 22, logging 7 Ks while allowing 3 hits and 0 ERs in 6.1 IP.

Given their six-game losing streak, it’s not a surprise to see the Mariners recording the 10th-worst wRC+ (88), 7th-worst wOBA (.286), and 9th-worst ISO (.128) since the start of August, per FanGraphs. Meanwhile, the Yankees have the 14th-best wRC+ (103), 15th-best wOBA (.316), and 5th-best ISO (.195) since the start of the month.

Currently, Seattle has the third-lowest payout to win the AL West (6.66x), behind the Houston Astros (1.58x) and Texas Rangers (2.77x), per PrizePicks Team Picks. As for New York, it interestingly has the second-lowest payout to win the AL East (4.34x) and the World Series (6.66x).

Mariners vs. Yankees Winner Payout, Over/Under – Thursday, August 13

The Yankees enter Thursday’s game as a massive home favorite against the Mariners, returning a 1.63x payout if they win outright, via PrizePicks Team Picks.

Here are the full payouts for the Mariners vs. Yankees game on PrizePicks.

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Team Picks data is live at the time of writing and is subject to change.

Mariners vs. Yankees Prediction on Over/Under – 8/13/26

Here are the key game stats and trends behind our Mariners vs. Yankees prediction on the total runs for Thursday, August 13.

• Although Gilbert has a 3.48 xFIP, 0.98 WHIP, and 1.90 HR/9 at home, he carries a 3.60 xFIP, 1.02 WHIP, and 0.17 HR/9 on the road this season.
• Across his first four starts since returning from the injured list, Fried has earned a 2.61 xFIP, 0.86 WHIP, 0.00 HR/9, and 34.7% strikeout rate.
• Both of these teams deploy strong bullpens, as Seattle’s relievers have the second-best xFIP (3.34) and fourth-highest strikeout rate (27.5%) in the last 30 days.
• During the same 30-day span, New York’s bullpen has tallied the ninth-best xFIP (4.02) and ninth-highest strikeout rate (24.3%).
• Over the last month against right-handed pitching, the Yankees sport the third-worst wRC+ (80), second-worst wOBA (.283), and second-highest strikeout rate (26.6%).
• When facing left-handed pitchers in the last month, the Mariners hold just the 15th-best wRC+ (94), 11th-worst wOBA (.294), and 15th-highest strikeout rate (23.8%).

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Mariners vs. Yankees Picks, Player Stats for PrizePicks: 8/13/26

Here are the top Mariners vs. Yankees picks to target on Thursday, August 13. Today’s MLB picks for PrizePicks include Max Fried and Jazz Chisholm Jr..

Yankees SP Max Fried vs. Mariners: 1.5 Earned Runs Allowed

• Fried has allowed 1 or fewer ER in three of his four starts since returning from the injured list.
• At home in 2026, Fried has a formidable 3.88 xFIP, 1.05 WHIP, 0.31 HR/9, and 24.3% strikeout rate.
• Amid their current six-game losing streak, the Mariners have scored fewer than 2 runs in four of those games.
• On the road this season, Seattle has the 11th-worst wRC+ (94), 8th-worst wOBA (.304), and 10th-worst ISO (.143).

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Yankees 2B Jazz Chisholm Jr. vs. Mariners: 4.5 Hitter Fantasy Score

• Across his last 10 appearances, Chisholm has gone hitless in 5 contests.
• Chisholm is posting a dismal 51 wRC+, .241 wOBA, and 35.3% strikeout rate in August.
• This comes after Chisholm notched just a 91 wRC+, .299 wOBA, and 38.1% strikeout rate in July.
• Gilbert is registering a 3.28 xFIP, 0.99 WHIP, and 30.4% strikeout rate against lefties, compared to a 3.84 xFIP, 1.01 WHIP, and 21.1% strikeout rate vs. righties.

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The Mariners have lost six in a row, and they are hoping to avoid the Yankees bringing out the brooms for the series finale. Should we expect a low-scoring affair with Gilbert and Fried on the bump in Thursday’s showdown?

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