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Red Sox @ Mariners

Red Sox
13
Final
Mariners
Sun, Jun 21, 2026, 4:10 PM ET · MLB
Closing · ML +111 · SPR -1.5 · O/U 6.5

Archived game: the closing market as it stood at kickoff, kept permanently at this URL. Live odds, picks and the confluence table only run on games still on the slate.

Matchup summary

Final: Mariners beat the Red Sox 3-1 at home. The market closed with Red Sox at +111 on the moneyline and the total at 6.5. The closing betting splits (tickets vs money), the opening line and the movement into kickoff are below.

Market data captured (closing state as of ) · source: Action Network's closing consensus for this game · permanent record at this URL

More on this matchup: Red Sox betting trends · Mariners betting trends · all MLB games

Red Sox vs Mariners betting splits

Where was the money on Red Sox vs Mariners?

MarketSideTicketsMoneyClosing line / odds
SpreadRed Sox32%54%+1.5 (-217)
Mariners68%46%-1.5 (+179)
TotalOver87%85%O 6.5 (-118)
Under13%15%U 6.5 (+102)
MoneylineRed Sox36%32%+111
Mariners64%68%-133

The Mariners held 68% of spread tickets but only 46% of the money; 54% of spread money was on the Red Sox with 32% of tickets, so the average Red Sox bet was larger.

87% of total tickets and 85% of total money were on the over, so the over drew more tickets than money and the average under bet was larger.

64% of moneyline tickets and 68% of moneyline money were on the Mariners, so the average Mariners bet was larger than the average Red Sox bet.

Line movement

What was the closing line for Red Sox vs Mariners?

MarketOpeningClosingMove
Spread (Mariners)-1.5-1.50
Total76.5-0.5

The Mariners opened -1.5 and closed -1.5: the spread has not moved.

The total opened 7 and closed 6.5, a 0.5-point move toward the under.

Why the line moved

Why did the Red Sox vs Mariners line move?

The spread did not move from its opening number (Mariners -1.5) even with 54% of the spread money on the Red Sox. The total moved 0.5 points toward the under (7 to 6.5) even though 85% of the total money sits on the over; the under holds 15% of the money and 13% of the tickets, so the line moved away from the money side. Splits describe where the money sits, not what will happen.

Splits describe where the money sits, not what will happen; there is no historical dataset for this sport yet.

Read more

Red Sox vs Mariners Final Score, Closing Odds & Betting Splits — Jun 21, 2026 | Locksmith