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MLB
Nationals Park, Washington
Outdoor
Fri 12 Jun 2026, 6:45 PM ET
Seattle Mariners
VS
Washington Nationals

Seattle Mariners vs Washington Nationals Prediction & Picks

Our model graded 23 markets for Seattle Mariners vs Washington Nationals and backs Over 9.5 hardest, a strong call, and $100 on it returns about $200.

20
Game markets graded
3
Props graded
The model's one call for this gamethe prediction, first Free
Over 9.5 total runs
Over 9.5 Total Runs
You bet$10 If it wins$20.00Best price+100
Our confidenceHigh
Chance to win61.3%
The price says50.0%

The model graded 23 markets for Seattle Mariners vs Washington Nationals (MLB) and this is the one it backs hardest — HIGH confidence. A $100 bet returns about $200 if it lands. This one is free — every other market and all player props are Pro. Tip-off Fri 12 Jun 2026, 6:45 PM ET at Nationals Park.

This game's bets

The rest of this game's boardgraded market by market
Total Runs Over 9.5 High61% chance +100
Total Runs Members only Lean57% chance Members
Spread Members only Long-shot32% chance Members
Moneyline Members only Lean49% chance Members
Pitcher - Strikeouts × 1 prop Highup to 80% Members
Batter - Hits × 2 props Highup to 89% Members
High = 60%+ chance to win · Lean = 40–60% · Long-shot = under 40%

Seattle Mariners and Washington Nationals last met on Fri 12 Jun 2026. 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
Total Runs
Over
9.5
+ 19 more markets
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Calibrated model vs market

Our chance vs the price, market by market
PickMarketModel lean
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
Washington NationalsSpreadThe model likes this price 🔒 Unlock with Pro
Washington NationalsSpreadThe model likes this price 🔒 Unlock with Pro
Washington NationalsMoneylineThe model likes this price 🔒 Unlock with Pro
Washington NationalsSpreadThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
Washington NationalsSpreadThe model likes this price 🔒 Unlock with Pro
OverTotal RunsThe model likes this price 🔒 Unlock with Pro
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Injuries & who's out

Injuries & availability

Seattle Mariners

  • Nick Davila RPOut
  • Matt Brash RPOut
  • Colt Emerson SSOut
  • Logan Evans SPOut
  • Michael Arroyo SSOut
  • Josh Naylor 1BOut
  • Cal Raleigh COut
  • Michael Toglia 1BOut

Washington Nationals

  • Drew Millas COut
Availability updated Nov 3, 1:26AM UTC · refreshed roughly every 4 hours.

Weather & injury impact for this fixture

Conditions · who's out · how it moves the number
For Seattle Mariners vs Washington Nationals: Ballpark wind and temperature can swing the run total, though the live per-park feed isn't wired into this page yet, and 9 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.
Availability9 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.

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Player props

GOOD PRICE in green
PlayerTeamStat
Zack Littell SFG Pitcher - Strikeouts
Josh Naylor CLE Batter - Hits
Cole Young Batter - Hits

+ 3 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
MoneylineWashington NationalsNo line posted
3-2L5 record
L5 RF3.4L5 RA5.0Home L53-2vs Seattle Mariners L51-4

Washington Nationals moneyline form: last five 3-2, 3.4 runs/gm.

Run LineWashington Nationals run lineNo line posted
3-2L5 record
L5 RF3.4L5 RA5.0Home L53-2vs Seattle Mariners L51-4

Washington Nationals spread form: last five 3-2, 3.4 runs/gm.

Total RunsGame total · Washington Nationals vs Seattle MarinersNo line posted

Washington Nationals total runs form: last five 3-2, 3.4 runs/gm.

Team Total RunsWashington Nationals team totalNo line posted
4.3runs we expect
L5 RF3.4L5 RA5.0Home L53-2vs Seattle Mariners L51-4

Washington Nationals team total runs form: last five 3-2, 3.4 runs/gm.

Seattle Mariners @ Washington Nationals — what the model found

Our model graded 23 betting markets for Seattle Mariners at Washington Nationals — 20 on the game itself and 3 on individual players. One pick is free on this page.

20
Game markets graded
3
Player bets graded

The model checked every betting market for this game and graded 23 of them. One pick is free on this page — the one the model likes most. Scroll down to see it.

🔒 The other 22 graded calls for this game — with how much to bet on each — are for members.
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Seattle Mariners vs Washington Nationals — recent results

Washington Nationals have won 4 of their last 5 games; Seattle Mariners have won 3 of their last 5.

Washington Nationals — last 5
ResultScoreOpponentWhere
W6–4NYMHome
L1–7NYMHome
W7–6NYMHome
W4–2DETAway
W3–1DETAway
Seattle Mariners — last 5
ResultScoreOpponentWhere
W8–4LAAHome
W7–3LAAHome
L5–7LAAHome
L4–6LAAHome
W6–5HOUHome

Seattle Mariners vs Washington Nationals — recent meetings

These two have met 3 times recently: Washington Nationals won 2, Seattle Mariners won 1.

DateWashington NationalsSeattle MarinersWinner
Jun 14101Washington Nationals
Jun 1383Washington Nationals
Jun 12210Seattle Mariners

Who’s out or in doubt

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

Washington Nationals
PlayerStatus
Drew Millas COUT
Seattle Mariners
PlayerStatus
Nick Davila RPOUT
Matt Brash RPOUT
Colt Emerson SSOUT
Logan Evans SPOUT
Michael Arroyo SSOUT
Josh Naylor 1BOUT
Cal Raleigh COUT
Michael Toglia 1BOUT

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

Seattle Mariners @ Washington Nationals — model preview

Winning baseball bets for Washington Nationals vs Seattle Mariners? We break down odds and insights. Includes analysis on key players like NA. Explore MLB predictions, MLB game picks, baseball betting preview, Washington Nationals vs Seattle Mariners stats and odds.

Washington Nationals vs Seattle Mariners : Over 11 Total Runs (+164)

Odds available at NA at time of publishing

As the Nationals host the Mariners, we’re in for a potential run bonanza. Washington's offense has been heating up, averaging over five runs per game during their last ten outings, with a potent lineup that includes emerging stars and seasoned hitters alike. Meanwhile, Seattle’s bats have been equally impressive, racking up runs with consistency, especially against right-handed pitching. On the mound, both teams have shown vulnerability; Nationals' starter has a tendency to surrender big innings, while the Mariners’ pitcher has struggled against lineups that can capitalize on mistakes. With the over/under set at 11, we’re looking at a matchup ripe for offensive fireworks. The expected run production aligns with recent team trends, suggesting a shootout could be on the horizon. Given the blend of high-scoring potential and shaky pitching, betting the over feels like a savvy play for Friday night’s clash.

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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 Seattle Mariners vs Washington Nationals in the MLB. You may also see this matchup written as Mariners vs Nationals, or as Nationals vs Mariners. The most recent game between them was Friday 12 June 2026 at Nationals Park. The model has generated 20 game picks and 3 player props for this matchup. Review the picks and historical data above to guide your MLB betting strategy for this matchup.

Seattle Mariners vs Washington Nationals: game facts

Past meetings and recent results

Where they last met

  • 14 Jun 2026Washington Nationals beat Seattle Mariners 10-1 at home
  • 13 Jun 2026Washington Nationals beat Seattle Mariners 8-3 at home
  • 12 Jun 2026Seattle Mariners beat Washington Nationals 10-2 on the road

Seattle Mariners: last 5 results

  1. 27 Sep 2026Wonvs Los Angeles Angels 7-3
  2. 26 Sep 2026Wonvs Los Angeles Angels 8-4
  3. 25 Sep 2026Lostvs Los Angeles Angels 5-7
  4. 24 Sep 2026Lostvs Los Angeles Angels 4-6
  5. 23 Sep 2026Wonvs Houston Astros 6-5

Washington Nationals: last 5 results

  1. 27 Sep 2026Wonvs New York Mets 6-4
  2. 26 Sep 2026Lostvs New York Mets 1-7
  3. 25 Sep 2026Wonvs New York Mets 7-6
  4. 23 Sep 2026Wonat Detroit Tigers 4-2
  5. 22 Sep 2026Wonat Detroit Tigers 3-1

Quick answers

Who won the last Washington Nationals vs Seattle Mariners game? Washington Nationals won their last meeting 10-1 on 14 June 2026.

How have Seattle Mariners and Washington Nationals done lately? Seattle Mariners won 3 and lost 2 of the last 5 results we hold. Washington Nationals won 4 and lost 1 of the last 5 results we hold.

From the final scores we hold. Newest game first.

Seattle Mariners vs Washington Nationals: the season so far

From every final score this season

Seattle Mariners are 76-86 this season and Washington Nationals are 77-85. Washington Nationals are 39-42 at home. Seattle Mariners are 33-48 on the road. Washington Nationals score 5.1 runs a game and let in 5.0. Seattle Mariners score 4.1 and let in 4.5. Washington Nationals games have averaged 10.1 runs in total; Seattle Mariners games have averaged 8.6.

SeasonSeattle MarinersWashington Nationals
Won-lost76-8677-85
At home43-3839-42
On the road33-4838-43
Last 106-46-4
Runs scored a game4.15.1
Runs let in a game4.55.0
Runs scored at home3.95.3
Runs scored away4.34.8
Against winning sides24-3431-47
Current runWon 2Won 1
Biggest win19-1 at Athletics23-4 at Athletics
Heaviest loss22-0 at Milwaukee Brewers15-1 at Athletics

Teams they have both played

  • Against New York Mets: Washington Nationals won 6-4 at home; Seattle Mariners lost 1-7 at home.
  • Against Detroit Tigers: Washington Nationals won 4-2 on the road; Seattle Mariners lost 0-11 at home.
  • Against St. Louis Cardinals: Washington Nationals lost 3-5 on the road; Seattle Mariners won 3-2 on the road.

Quick answers

How are Washington Nationals doing this season? Washington Nationals are 77-85 this season: 39-42 at home and 38-43 on the road.

How many runs do Seattle Mariners score a game? Seattle Mariners score 4.1 runs a game this season and let in 4.5, across 162 games.

Wins and losses come from the final score, overtime included. “Against winning sides” counts games against teams that have won more than half their games this season.

Seattle Mariners vs Washington Nationals head-to-head record

Final scores · 12 meetings on record
Washington Nationals 8–4 across the last 12 meetings · these games average 9.8 runs (meetings on record since 2023)

Last meeting: Sun 14 Jun 2026, Seattle Mariners at Washington Nationals: the Nationals won 10-1.

DateGameScoreWinner
14 Jun 2026Seattle Mariners @ Washington Nationals10–1Washington Nationals
13 Jun 2026Seattle Mariners @ Washington Nationals8–3Washington Nationals
12 Jun 2026Seattle Mariners @ Washington Nationals2–10Seattle Mariners
29 May 2025Washington Nationals @ Seattle Mariners3–9Washington Nationals
28 May 2025Washington Nationals @ Seattle Mariners0–9Washington Nationals
27 May 2025Washington Nationals @ Seattle Mariners9–1Seattle Mariners
26 May 2024Seattle Mariners @ Washington Nationals5–9Seattle Mariners
25 May 2024Seattle Mariners @ Washington Nationals3–1Washington Nationals
24 May 2024Seattle Mariners @ Washington Nationals6–1Washington Nationals
28 Jun 2023Washington Nationals @ Seattle Mariners1–4Washington Nationals

Table shows the last 10 — the record above counts all 12 meetings on file.

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