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Model picks & player props
MLB
T-Mobile Park, Seattle
Indoor
Sun 9 Aug 2026, 4:10 PM ET
Tampa Bay Rays
VS
Seattle Mariners

Tampa Bay Rays vs Seattle Mariners Prediction & Picks

Our model graded 70 markets for Tampa Bay Rays vs Seattle Mariners and backs Tampa Bay Rays -3 hardest, a long shot, and $100 on it returns about $456.

20
Game markets graded
50
Props graded
The model's one call for this gamethe prediction, first Free
Tampa Bay Rays
to win by more than 3 runs
Tampa Bay Rays -3 Spread
You bet$10 If it wins$45.60Best price+356
Our confidenceLong-shot
Chance to win36.5%
The price says21.9%

The model graded 70 markets for Tampa Bay Rays vs Seattle Mariners (MLB) and this is the one it backs hardest — a long shot. A $100 bet returns about $456 if it lands. This one is free — every other market and all player props are Pro. Tip-off Sun 9 Aug 2026, 4:10 PM ET at T-Mobile Park.

This game's bets

The rest of this game's boardgraded market by market
Spread Tampa Bay Rays -3 Long-shot36% chance +356
Spread Members only Lean40% chance Members
Spread - 1st 5 Innings Members only Lean55% chance Members
Total Runs Members only Long-shot34% chance Members
Moneyline - 1st 5 Innings Members only High62% chance Members
Moneyline Members only Lean60% chance Members
Batter - Hits + Runs + RBIs × 12 props Highup to 94% Members
Batter - Singles × 7 props Highup to 90% Members
Batter - Hits × 6 props Highup to 86% Members
Batter - Walks × 6 props Highup to 97% Members
Batter - Runs Scored × 7 props Highup to 95% Members
Batter - Total Bases × 3 props Highup to 92% Members
Pitcher - Walks × 2 props Highup to 81% Members
Pitcher - Hits Allowed × 1 prop Highup to 84% Members
High = 60%+ chance to win · Lean = 40–60% · Long-shot = under 40%

Tampa Bay Rays and Seattle Mariners last met on Sun 9 Aug 2026: Tampa Bay Rays won 3-2. Their next game gets a fresh preview here the moment it is priced. Today's board: every MLB game priced right now.

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Game picks

GOOD PRICE in green
Spread
Tampa Bay Rays
-3
+ 19 more markets
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All 20 game markets and 50 player props for this matchup — every line, every call the model backs — plus every pick across the slate. Join 67,554+ members.

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Calibrated model vs market

Our chance vs the price, market by market
PickMarketModel lean
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpread - 1st 5 InningsThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpread - 1st 5 InningsThe model likes this price 🔒 Unlock with Pro
UnderTotal RunsThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysMoneyline - 1st 5 InningsThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysMoneylineThe model likes this price 🔒 Unlock with Pro
UnderTotal RunsThe model likes this price 🔒 Unlock with Pro
UnderTotal RunsThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpread - 1st 5 InningsThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpreadThe model likes this price 🔒 Unlock with Pro
UnderTotal RunsThe model likes this price 🔒 Unlock with Pro
Tampa Bay RaysSpread - 1st 5 InningsThe model likes this price 🔒 Unlock with Pro

Which price is actually worth taking?

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Injuries & who's out

Injuries & availability

Tampa Bay Rays

  • Shane McClanahan SPOut
  • Jacob Melton LFOut
  • Gavin Lux LFOut
  • Edwin Uceta RPOut
  • Jonathan Heasley RPOut
  • Ryan Pepiot SPOut

Probable pitcher

Freddy Peralta SP

Seattle Mariners

  • Josh Naylor 1BOut
  • Cal Raleigh COut
  • Michael Toglia 1BOut
  • Kade Anderson SPDay-to-day
  • Andres Munoz RPOut
  • Brock Rodden SSOut
  • Nick Davila RPOut
  • Matt Brash RPOut
  • Brendan Donovan 3BOut
  • Brennen Davis CFOut
  • Colt Emerson SSOut
  • Emerson Hancock SPOut
  • Luke Raley RFOut
  • Cole Wilcox RPOut
  • Will Wilson 3BOut
  • Logan Evans SPOut
Availability updated Oct 14, 12:00AM UTC · refreshed roughly every 4 hours.

Weather & injury impact for this fixture

Conditions · who's out · how it moves the number
For Tampa Bay Rays vs Seattle Mariners: Ballpark wind and temperature can swing the run total, though the live per-park feed isn't wired into this page yet, and 22 players are listed out or questionable across both sides.
FactorThis fixture
Ballpark weatherWind and temperature at the park move run totals, but our ballpark weather module is pending a file-to-table persistence job.
Availability22 listed out or questionable (see Who's out above)

General rule: wind blowing out and warm air help the ball carry (more runs and home runs), while wind in and cold air suppress scoring; the starting pitchers listed above are the single biggest driver of the run total.

Ballpark weather module pending a file-to-table persistence job (owner). We won't show a wind/temperature number until it's persisted to the database.

Pro — weather & injury-adjusted view

See the weather- and injury-adjusted projected line and the model's with/without delta for this fixture. 🔒 Unlock with Pro

Player props

GOOD PRICE in green
PlayerTeamStat
Brendan Donovan STL Batter - Hits + Runs + RBIs
Brendan Donovan STL Batter - Singles
Chandler Simpson Batter - Singles
Taylor Walls Batter - Hits
Taylor Ward LAA Batter - Hits + Runs + RBIs

+ 50 player props graded for this game — the line, the call and how much to put on each, with Pro.

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Betting angles

Markets & form
MoneylineSeattle MarinersNo line posted
2-3L5 record
L5 RF3.4L5 RA5.2Home L52-3vs Tampa Bay Rays L51-4

Seattle Mariners moneyline form: last five 2-3, 3.4 runs/gm.

Run LineSeattle Mariners run lineNo line posted
2-3L5 record
L5 RF3.4L5 RA5.2Home L52-3vs Tampa Bay Rays L51-4

Seattle Mariners spread form: last five 2-3, 3.4 runs/gm.

Total RunsGame total · Seattle Mariners vs Tampa Bay RaysNo line posted

Seattle Mariners total runs form: last five 2-3, 3.4 runs/gm.

Team Total RunsSeattle Mariners team totalNo line posted
3.0runs we expect
L5 RF3.4L5 RA5.2Home L52-3vs Tampa Bay Rays L51-4

Seattle Mariners team total runs form: last five 2-3, 3.4 runs/gm.

Tampa Bay Rays @ Seattle Mariners — what the model found

Our model graded 70 betting markets for Tampa Bay Rays at Seattle Mariners — 20 on the game itself and 50 on individual players. One pick is free on this page.

20
Game markets graded
50
Player bets graded

The model checked every betting market for this game and graded 70 of them. One pick is free on this page — the one the model likes most. Scroll down to see it.

🔒 The other 69 graded calls for this game — with how much to bet on each — are for members.
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Tampa Bay Rays vs Seattle Mariners — recent results

Seattle Mariners have won 3 of their last 5 games; Tampa Bay Rays have won 3 of their last 5.

Seattle Mariners — last 5
ResultScoreOpponentWhere
W8–4LAAHome
W7–3LAAHome
L5–7LAAHome
L4–6LAAHome
W6–5HOUHome
Tampa Bay Rays — last 5
ResultScoreOpponentWhere
L3–7CLEHome
W4–3NYYAway
W5–2NYYHome
W1–0NYYHome
L3–7PHIAway

Tampa Bay Rays vs Seattle Mariners — recent meetings

These two have met 6 times recently: Seattle Mariners won 1, Tampa Bay Rays won 5.

DateSeattle MarinersTampa Bay RaysWinner
Aug 923Tampa Bay Rays
Aug 914Tampa Bay Rays
Aug 812Tampa Bay Rays
Jul 1282Seattle Mariners
Jul 1116Tampa Bay Rays
Jul 1027Tampa Bay Rays

Who’s out or in doubt

22 players are listed as out or in doubt for this game.

Seattle Mariners
PlayerStatus
Josh Naylor 1BOUT
Cal Raleigh COUT
Michael Toglia 1BOUT
Kade Anderson SPDAY-TO-DAY
Andres Munoz RPOUT
Brock Rodden SSOUT
Nick Davila RPOUT
Matt Brash RPOUT
Tampa Bay Rays
PlayerStatus
Shane McClanahan SPOUT
Jacob Melton LFOUT
Gavin Lux LFOUT
Edwin Uceta RPOUT
Jonathan Heasley RPOUT
Ryan Pepiot SPOUT

The full availability report — with what each missing player means for the bets — is further down this page.

Tampa Bay Rays @ Seattle Mariners — model preview

Our Tampa Bay Rays at Seattle Mariners prediction for August 10, 2026, plus every bet we like in the game and how confident we are in each.

On August 10, 2026 our model has run Tampa Bay Rays at Seattle Mariners and priced every market it can. Our strongest call is Cole Young Under 1.5 Total Bases (-323), which we rate HIGH confidence. We walk through all 5 bets we like in this game below. Everything below is our own number against the price the book is offering, written in plain English with how confident we are in words.

Every bet we like in this game

🔒 The other 5 write-ups for this game — with how much to bet on each — are Pro.
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About this matchup

How we read the game

This page tracks the Bet Better model's pick history and predictions for Tampa Bay Rays vs Seattle Mariners in the MLB. You may also see this matchup written as Rays vs Mariners, or as Mariners vs Rays. The most recent game between them was Sunday 9 August 2026 at T-Mobile Park. The model has generated 20 game picks and 50 player props for this matchup. Review the picks and historical data above to guide your MLB betting strategy for this matchup.

Tampa Bay Rays vs Seattle Mariners head-to-head record

Final scores · 25 meetings on record
Tampa Bay Rays 15–10 across the last 25 meetings · these games average 8.8 runs (meetings on record since 2023)

Last meeting: Sun 9 Aug 2026, Tampa Bay Rays at Seattle Mariners: the Rays won 3-2.

DateGameScoreWinner
9 Aug 2026Tampa Bay Rays @ Seattle Mariners2–3Tampa Bay Rays
8 Aug 2026Tampa Bay Rays @ Seattle Mariners1–2Tampa Bay Rays
7 Aug 2026Tampa Bay Rays @ Seattle Mariners1–2Tampa Bay Rays
12 Jul 2026Seattle Mariners @ Tampa Bay Rays2–8Seattle Mariners
11 Jul 2026Seattle Mariners @ Tampa Bay Rays6–1Tampa Bay Rays
10 Jul 2026Seattle Mariners @ Tampa Bay Rays7–2Tampa Bay Rays
3 Sep 2025Seattle Mariners @ Tampa Bay Rays9–4Tampa Bay Rays
2 Sep 2025Seattle Mariners @ Tampa Bay Rays6–5Tampa Bay Rays
1 Sep 2025Seattle Mariners @ Tampa Bay Rays10–2Tampa Bay Rays
10 Aug 2025Tampa Bay Rays @ Seattle Mariners6–3Seattle Mariners

Table shows the last 10 — the record above counts all 25 meetings on file.

Today's selected board

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