Seattle Mariners vs Chicago Cubs

MLB - August 21, 2026 9:11 PM

Chicago Cubs have a 50.2% of winning.
Seattle Mariners have a 49.8% of winning.

Click on a line grade to learn more.

Chicago CubsSeattle Mariners
50.2%
LineBreak
Even		Grade
Ceasers-10551.2%C

Chicago Cubs
Ceasers-105
Break Even51.2%
Probability50.2%
GradeC
For this to be profitable, the Chicago Cubs must be more likely than 51.2% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a C grade.
Lowvig-10751.7%C

Chicago Cubs
-107
Break Even51.7%
Probability50.2%
GradeC
For this to be profitable, the Chicago Cubs must be more likely than 51.7% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a C grade.
Betonline.ag-10751.7%C

Chicago Cubs
Betonline.ag-107
Break Even51.7%
Probability50.2%
GradeC
For this to be profitable, the Chicago Cubs must be more likely than 51.7% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a C grade.
Fanduel-10851.9%C

Chicago Cubs
-108
Break Even51.9%
Probability50.2%
GradeC
For this to be profitable, the Chicago Cubs must be more likely than 51.9% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a C grade.
MyBookie-10952.2%C

Chicago Cubs
MyBookie-109
Break Even52.2%
Probability50.2%
GradeC
For this to be profitable, the Chicago Cubs must be more likely than 52.2% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a C grade.
DraftKings-11052.4%F

Chicago Cubs
DraftKings-110
Break Even52.4%
Probability50.2%
GradeF
For this to be profitable, the Chicago Cubs must be more likely than 52.4% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a F grade.
BetMGM-11052.4%F

Chicago Cubs
BetMGM-110
Break Even52.4%
Probability50.2%
GradeF
For this to be profitable, the Chicago Cubs must be more likely than 52.4% to win.
However, the calculated probability is 50.2%, less likely, giving this bet a F grade.
49.8%
LineBreak
Even		Grade
Lowvig-10350.7%C

Seattle Mariners
-103
Break Even50.7%
Probability49.8%
GradeC
For this to be profitable, the Seattle Mariners must be more likely than 50.7% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a C grade.
Betonline.ag-10350.7%C

Seattle Mariners
Betonline.ag-103
Break Even50.7%
Probability49.8%
GradeC
For this to be profitable, the Seattle Mariners must be more likely than 50.7% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a C grade.
Ceasers-10551.2%C

Seattle Mariners
Ceasers-105
Break Even51.2%
Probability49.8%
GradeC
For this to be profitable, the Seattle Mariners must be more likely than 51.2% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a C grade.
Fanduel-10851.9%F

Seattle Mariners
-108
Break Even51.9%
Probability49.8%
GradeF
For this to be profitable, the Seattle Mariners must be more likely than 51.9% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a F grade.
MyBookie-10851.9%F

Seattle Mariners
MyBookie-108
Break Even51.9%
Probability49.8%
GradeF
For this to be profitable, the Seattle Mariners must be more likely than 51.9% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a F grade.
DraftKings-10952.2%F

Seattle Mariners
DraftKings-109
Break Even52.2%
Probability49.8%
GradeF
For this to be profitable, the Seattle Mariners must be more likely than 52.2% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a F grade.
BetMGM-11052.4%F

Seattle Mariners
BetMGM-110
Break Even52.4%
Probability49.8%
GradeF
For this to be profitable, the Seattle Mariners must be more likely than 52.4% to win.
However, the calculated probability is 49.8%, less likely, giving this bet a F grade.

Spreads:

37.5% chance that Chicago Cubs win by 1.5 or more points.
62.5% chance that Seattle Mariners win or are within 1.5 points of winning.

Click on a line grade to learn more.

Chicago Cubs (-1.5)Seattle Mariners (1.5)
37.5%
LineBreak
Even		Grade
Fanduel15838.8%C

Chicago Cubs (-1.5)
158
Break Even38.8%
Probability37.5%
GradeC
For this to be profitable, the Chicago Cubs (-1.5) spread must be more likely than 38.8% to win.
However, the calculated probability is 37.5%, less likely, giving this bet a C grade.
BetMGM15539.2%C

Chicago Cubs (-1.5)
BetMGM155
Break Even39.2%
Probability37.5%
GradeC
For this to be profitable, the Chicago Cubs (-1.5) spread must be more likely than 39.2% to win.
However, the calculated probability is 37.5%, less likely, giving this bet a C grade.
MyBookie15539.2%C

Chicago Cubs (-1.5)
MyBookie155
Break Even39.2%
Probability37.5%
GradeC
For this to be profitable, the Chicago Cubs (-1.5) spread must be more likely than 39.2% to win.
However, the calculated probability is 37.5%, less likely, giving this bet a C grade.
DraftKings15339.5%F

Chicago Cubs (-1.5)
DraftKings153
Break Even39.5%
Probability37.5%
GradeF
For this to be profitable, the Chicago Cubs (-1.5) spread must be more likely than 39.5% to win.
However, the calculated probability is 37.5%, less likely, giving this bet a F grade.
62.5%
LineBreak
Even		Grade
MyBookie-18464.8%F

Seattle Mariners (1.5)
MyBookie-184
Break Even64.8%
Probability62.5%
GradeF
For this to be profitable, the Seattle Mariners (1.5) spread must be more likely than 64.8% to win.
However, the calculated probability is 62.5%, less likely, giving this bet a F grade.
DraftKings-18665.0%F

Seattle Mariners (1.5)
DraftKings-186
Break Even65.0%
Probability62.5%
GradeF
For this to be profitable, the Seattle Mariners (1.5) spread must be more likely than 65.0% to win.
However, the calculated probability is 62.5%, less likely, giving this bet a F grade.
BetMGM-19065.5%F

Seattle Mariners (1.5)
BetMGM-190
Break Even65.5%
Probability62.5%
GradeF
For this to be profitable, the Seattle Mariners (1.5) spread must be more likely than 65.5% to win.
However, the calculated probability is 62.5%, less likely, giving this bet a F grade.
Fanduel-19265.8%F

Seattle Mariners (1.5)
-192
Break Even65.8%
Probability62.5%
GradeF
For this to be profitable, the Seattle Mariners (1.5) spread must be more likely than 65.8% to win.
However, the calculated probability is 62.5%, less likely, giving this bet a F grade.

Totals:

53.3% chance that the total final score will be over 7.5 points.
46.7% chance that the total final score will be under 7.5 points.

Click on a line grade to learn more.

Over (7.5)Under (7.5)
53.3%
LineBreak
Even		Grade
Lowvig-12355.2%C

Over (7.5)
-123
Break Even55.2%
Probability53.3%
GradeC
For this to be profitable, the Over (7.5) must be more likely than 55.2% to win.
However, the calculated probability is 53.3%, less likely, giving this bet a C grade.
Ceasers-12555.6%F

Over (7.5)
Ceasers-125
Break Even55.6%
Probability53.3%
GradeF
For this to be profitable, the Over (7.5) must be more likely than 55.6% to win.
However, the calculated probability is 53.3%, less likely, giving this bet a F grade.
Betonline.ag-12555.6%F

Over (7.5)
Betonline.ag-125
Break Even55.6%
Probability53.3%
GradeF
For this to be profitable, the Over (7.5) must be more likely than 55.6% to win.
However, the calculated probability is 53.3%, less likely, giving this bet a F grade.
46.7%
LineBreak
Even		Grade
Lowvig10748.3%C

Under (7.5)
107
Break Even48.3%
Probability46.7%
GradeC
For this to be profitable, the Under (7.5) must be more likely than 48.3% to win.
However, the calculated probability is 46.7%, less likely, giving this bet a C grade.
Ceasers10548.8%F

Under (7.5)
Ceasers105
Break Even48.8%
Probability46.7%
GradeF
For this to be profitable, the Under (7.5) must be more likely than 48.8% to win.
However, the calculated probability is 46.7%, less likely, giving this bet a F grade.
Betonline.ag10548.8%F

Under (7.5)
Betonline.ag105
Break Even48.8%
Probability46.7%
GradeF
For this to be profitable, the Under (7.5) must be more likely than 48.8% to win.
However, the calculated probability is 46.7%, less likely, giving this bet a F grade.

49.1% chance that the total final score will be over 8 points.
50.9% chance that the total final score will be under 8 points.

Click on a line grade to learn more.

Over (8)Under (8)
49.1%
LineBreak
Even		Grade
BetMGM-10551.2%F

Over (8)
BetMGM-105
Break Even51.2%
Probability49.1%
GradeF
For this to be profitable, the Over (8) must be more likely than 51.2% to win.
However, the calculated probability is 49.1%, less likely, giving this bet a F grade.
Fanduel-10651.5%F

Over (8)
-106
Break Even51.5%
Probability49.1%
GradeF
For this to be profitable, the Over (8) must be more likely than 51.5% to win.
However, the calculated probability is 49.1%, less likely, giving this bet a F grade.
MyBookie-10651.5%F

Over (8)
MyBookie-106
Break Even51.5%
Probability49.1%
GradeF
For this to be profitable, the Over (8) must be more likely than 51.5% to win.
However, the calculated probability is 49.1%, less likely, giving this bet a F grade.
DraftKings-10751.7%F

Over (8)
DraftKings-107
Break Even51.7%
Probability49.1%
GradeF
For this to be profitable, the Over (8) must be more likely than 51.7% to win.
However, the calculated probability is 49.1%, less likely, giving this bet a F grade.
50.9%
LineBreak
Even		Grade
DraftKings-11252.8%C

Under (8)
DraftKings-112
Break Even52.8%
Probability50.9%
GradeC
For this to be profitable, the Under (8) must be more likely than 52.8% to win.
However, the calculated probability is 50.9%, less likely, giving this bet a C grade.
Fanduel-11453.3%F

Under (8)
-114
Break Even53.3%
Probability50.9%
GradeF
For this to be profitable, the Under (8) must be more likely than 53.3% to win.
However, the calculated probability is 50.9%, less likely, giving this bet a F grade.
BetMGM-11553.5%F

Under (8)
BetMGM-115
Break Even53.5%
Probability50.9%
GradeF
For this to be profitable, the Under (8) must be more likely than 53.5% to win.
However, the calculated probability is 50.9%, less likely, giving this bet a F grade.
MyBookie-11553.5%F

Under (8)
MyBookie-115
Break Even53.5%
Probability50.9%
GradeF
For this to be profitable, the Under (8) must be more likely than 53.5% to win.
However, the calculated probability is 50.9%, less likely, giving this bet a F grade.