Free Pick: Cubs vs. Mariners Odds
Looking for Chicago Cubs vs. Seattle Mariners Free MLB predictions? MLB betting sees the Cubs taking on the Mariners on 8/22 at T-Mobile Park, in Seattle. This free MLB baseball pick is based on matchup analysis and documented handicapping data tracked by CappersPicks since 2004, with a focus on identifying the strongest betting angle for this Cubs Mariners matchup..
2026 MLB Handicapping – Chicago Cubs vs Seattle Mariners
(74-54) Chicago Cubs vs. Seattle Mariners (60-68)
Date: Aug 22, 2026
Time: 7:15 PM ET
Venue: T-Mobile Park in Seattle, WA
Projected Starting Pitchers: David Peterson vs. Kade Anderson
MLB Moneyline Odds: Cubs +101 | Mariners -119 (Bet Now!)
Today’s MLB Run Line Betting Odds: Cubs -1.5 | Mariners +1.5
MLB Baseball Gambling Total: O/U: 7.5
Here’s why I’m backing a Chicago ML bet below in my Cubs Mariners free pick & gambling prediction for this matchup.
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Cubs vs. Mariners Gameday
Today, the Chicago Cubs will face the Seattle Mariners at T-Mobile Park.
The Cubs, with a record of 74-54, sit second in the NL Central, while the Mariners carry a 60-68 record and rank third in the AL West. Recently, the Cubs ended a one-game losing streak following a loss against the Chicago White Sox.
The Mariners also look to bounce back after losing their latest game to the Milwaukee Brewers. Both teams have produced different results across their last ten games, with the Cubs going 6-4 and the Mariners at 4-6. The game, scheduled for 7:15 PM, will air on FOX with mild weather expected in Seattle, as Cubs manager Craig Counsell and Mariners manager Dan Wilson guide their teams in this evening’s contest.
Chicago owns the stronger record, while Seattle needs to regain some momentum at home.
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Chicago Cubs vs. Seattle Mariners Odds & Last 5
The Cubs enter as slight underdogs with a moneyline of +101, while the Mariners hold a moneyline of -120.
The runline shows the Cubs at -1.5 (+167) and the Mariners at +1.5 (-206), indicating a close contest is expected. In recent games, the Cubs have delivered mixed results.
They recently lost to the White Sox, but before that, they managed wins against the same team. Meanwhile, the Mariners have also endured a bumpy stretch lately. Seattle recently lost to the Brewers after beating them the day before.
Mariners Stats
The Seattle Mariners’ offense has encountered some challenges this season.
With a batting average of .230, they rank 20th in the league. Additionally, their slugging percentage stands at .375, placing them 24th.
The Mariners’ pitching staff has been performing better, with an earned run average of 4.00, which ranks 11th. Furthermore, they have allowed a batting average against of .247, ranking them 15th in the league. In terms of individual performances, Cole Young has been a standout player.
He leads the team with 15 home runs and 60 runs scored. Dominic Canzone also contributes significantly with a .262 batting average and 19 home runs.
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Cubs Stats
The Chicago Cubs have established a strong presence at the plate with a .248 batting average, placing them 7th in the league.
Their on-base percentage stands out at .337, ranking them 1st, which highlights their ability to reach base effectively. Furthermore, the Cubs’ slugging percentage of .418 ranks them 3rd, indicating their ability to hit for power.
They have hit 164 home runs, ranking 8th, and have accumulated 213 doubles, placing them 7th in the league. However, on the pitching side, the Cubs have an earned run average of 4.14, ranking 17th. Their pitchers have allowed a batting average against of .244, which ranks 13th, and have given up 192 home runs, placing them 25th in the league.
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Cubs vs. Mariners Pitching Matchup
David Peterson takes the mound for the Chicago Cubs with a 7-7 record.
His ERA stands at 5.29, and he has accumulated 95 strikeouts this season. However, his WHIP is 1.53, indicating potential challenges in maintaining consistency.
Peterson’s performance has shown variability, with some outings proving more effective than others. As the season progresses, it will be interesting to see if he can lower his ERA. His ability to strike out batters remains a key strength.
Kade Anderson is set to start for the Seattle Mariners.
Notably, Anderson has not pitched yet this season. This game will be his first opportunity to showcase his skills on the mound.
With Anderson making his debut, there is anticipation surrounding his performance. As he steps onto the field, fans and analysts alike will be keen to observe how he handles the pressure. His initial outing will provide insights into his potential impact for the Mariners.
Chicago Cubs vs. Seattle Mariners bottom line: Chicago brings the stronger overall record, while Seattle will look to take advantage of playing at home.
Chicago Cubs vs. Seattle Mariners Baseball Betting Trends
- The Mariners are 2-3 straight-up in their last 5 games.
- The Mariners have gone over the total in 3 of their last 5 games.
- The Cubs are 2-3 straight-up in their last 5 games.
- Also, the Cubs have gone under the total in 3 of their last 5 games.
- The Mariners are 1-4 against the run line in their last 5 games.
- Additionally, the Cubs are 2-3 against the run line in their last 5 games.
Cubs Mariners Free Pick: Cubs ML +101
Here is my Cubs Mariners free pick: Chicago brings the better recent form into this matchup, and getting plus money makes the Cubs worth backing.
Seattle has not done enough lately to scare me away.
The Cubs are 6-4 over their last 10 games, while the Mariners have gone 4-6 during the same stretch. Chicago has also been dependable away from home with a 36-27 road record.
Seattle owns a respectable home record, but its pitching numbers create concern against a Cubs lineup capable of taking advantage. Additionally, the Mariners have allowed more home runs and carry the weaker ERA of these two staffs. That’s meaningful.
Chicago has enough pitching and road success to make this plus-money price attractive.
The Mariners have also struggled against the run line recently, another sign that their current play hasn’t matched what bettors need from them.
Can Seattle suddenly reverse that trend against the steadier club?
However, I’m not asking Chicago to dominate this game or create a winning margin. The Cubs simply need to continue playing the cleaner baseball they’ve shown over the last couple of weeks. Instead, I’ll take the value with the better form and trust Chicago’s road performance to travel again.
The MLB betting system I’m on points to the Cubs ML, and that’s my play.
Today’s MLB Free Pick
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MLB Betting Tweet Of The Day
Kade Anderson is in the building. #TridentsUp
Be here for his debut tomorrow ➡️ https://t.co/nDNfVGnPRW pic.twitter.com/sG9kX3LDsX
— Seattle Mariners (@Mariners) August 21, 2026
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