Sports Today Tuesday, September 1
← Back to today’s slate MLB matchup · September 1, 2026
Seattle Mariners
64-74 · 3rd in AL West, 6 GB
Offense cooling lately
RHP Bryan Woo · High-strikeout arm · plus control
@
Boston Red Sox
75-63 · 3rd in AL East, 7.5 GB
Offense cooling lately
Starter TBD
MLB · Fenway Park · 3:45 PM PT

Team Identity

Seattle Mariners
Season-to-date, 137 games, 5,269 PA.
A below-league-average offense across most categories this season. The offense has cooled off recently.
Power
Well Below23
Contact
Well Below11
Plate Discipline
Average47
Speed
Average48
RISP
Well Below12
Recent Form
Trending Down
Hit rate is down 21% over the team's last 10 games versus its season baseline.
Boston Red Sox
Season-to-date, 137 games, 5,404 PA.
A contact-oriented offense that puts the ball in play and avoids empty at-bats. The offense has cooled off recently.
Power
Average46
Contact
Above Avg69
Plate Discipline
Below Avg34
Speed
Average48
RISP
Below Avg38
Recent Form
Trending Down
Total bases per PA is down 7% over the team's last 10 games versus its season baseline.

What This Game Is About

Biggest Advantage

Red Sox's offense is defined by being contact-oriented, and this game tests whether Mariners can match it.

Swing Factor

Bryan Woo strikes hitters out at a 23.9% clip (69th percentile); Red Sox carry a 20.4% strikeout rate.

Momentum

Mariners are trending down and Red Sox are trending down over their last 10 games.

Key Matchups

Can Bryan Woo miss enough bats?
Bryan Woo strikes hitters out at a 23.9% clip (69th percentile); Red Sox carry a 20.4% strikeout rate.
Edge · Red SoxBryan Woo: 23.9% K rateRed Sox: 20.4% K rateHigh confidence
Can Bryan Woo command the strike zone?
Red Sox walk in 8.1% of trips; Bryan Woo allows walks sparingly (4.9%).
Edge · Bryan WooRed Sox: 8.1% walk rateBryan Woo: 4.9% walks allowedHigh confidence
How do Red Sox handle right-handers?
Red Sox have produced worse against right-handers this season (0.334 vs. 0.342 TB/PA overall).
Edge · Bryan Woovs right-handers: 0.334 TB/PA (3994 PA)overall: 0.342 TB/PAModerate confidence
Can Bryan Woo limit Red Sox's power?
Red Sox rank in the 46th percentile in extra-base production, while Bryan Woo sits in the 44th percentile at suppressing total bases.
Edge · Red SoxRed Sox: 0.342 TB/PABryan Woo: 0.347 TB/PA allowed (593 PA)High confidence

Pitcher Trends

Bryan Woo
Bryan Woo
Seattle Mariners · 8 starts
SP
Strikeouts5.6/start
Hits allowed5.4/start
5+ Strikeouts — 6 of last 65 or fewer Hits Allowed — 5 of last 6
24% K rate
Per-start form only — opponent lineup, park, and pitch count aren't modeled.

Player Trends

Cal Raleigh
Cal Raleigh
Seattle Mariners · 0.270 hit rate · 0.784 TB/PA
Heating up
recent games · 1+ hit
L53 / 5L107 / 10L2512 / 252-game hit streak
Total bases per PA is up 219% over his prior baseline, with hits in 7 of his last 10 games. He has trimmed his strikeout rate to 27%.
Mickey Gasper
Mickey Gasper
Boston Red Sox · 0.269 hit rate · 0.615 TB/PA
Heating up
recent games · 1+ hit
L53 / 5L107 / 10L2514 / 25
On-base rate is up 98% over his prior baseline, with hits in 5 of his last 8 games. He has trimmed his strikeout rate to 0%.
J.P. Crawford
J.P. Crawford
Seattle Mariners · 0.111 hit rate · 0.111 TB/PA
Cooling off
recent games · 1+ hit
L52 / 5L104 / 10L2511 / 25
Total bases per PA is down 61% over his prior baseline, with hits in 2 of his last 5 games. His strikeout rate has climbed to 39%.
Julio Rodriguez
Julio Rodriguez
Seattle Mariners · 0.140 hit rate · 0.209 TB/PA
Cooling off
recent games · 1+ hit
L52 / 5L105 / 10L2516 / 25
On-base rate is down 47% over his prior baseline, with hits in 5 of his last 10 games. His strikeout rate has climbed to 40%.
Dominic Canzone
Dominic Canzone
Seattle Mariners · 0.154 hit rate · 0.231 TB/PA
Cooling off
recent games · 1+ hit
L53 / 5L106 / 10L2516 / 25
Total bases per PA is down 47% over his prior baseline, with hits in 5 of his last 9 games. His strikeout rate has climbed to 33%.

Players Positioned to Succeed

75
Brendan Donovan
Brendan Donovan
1+ Hit
Seattle Mariners
Why it stands out
Strong recent plate-appearance volume
Main risk
Lineup not yet posted
72
Wilyer Abreu
Wilyer Abreu
1+ Hit
Boston Red Sox
Why it stands out
Strong recent plate-appearance volume
Main risk
Lineup not yet posted
72
Ceddanne Rafaela
Ceddanne Rafaela
1+ Hit
Boston Red Sox
Why it stands out
Strong recent plate-appearance volume
Main risk
Recent hit rate has cooled
71
Josh Naylor
Josh Naylor
1+ Hit
Seattle Mariners
Why it stands out
Recent contact results are improving
Main risk
Lineup not yet posted
71
Masataka Yoshida
Masataka Yoshida
1+ Hit
Boston Red Sox
Why it stands out
Low recent strikeout rate
Main risk
Lineup not yet posted
67
Nick Sogard
Nick Sogard
1+ Hit
Boston Red Sox
Why it stands out
Consistently reaching base
Main risk
Recent hit rate has cooled

Expected Game Shape

UncertainLow confidence

Probable-starter data is incomplete, so the shape is hard to call. Red Sox bring more power.

Early edge Red Sox Driver Unclear without matched starters Volatility Moderate
  • At least one probable starter could not be matched to stored data.
  • Mariners are trending down; Red Sox are trending down.

Storylines to Watch

Is Cal Raleigh the one to watch?
Cal Raleigh enters as Mariners' hottest bat. Total bases per PA is up 219% over his prior baseline, with hits in 7 of his last 10 games. He has trimmed his strikeout rate to 27%.
0.270 hit rate · 0.784 TB/PA · 0.129 hit rate · 0.246 TB/PA
Can J.P. Crawford snap out of it?
J.P. Crawford has cooled off. Total bases per PA is down 61% over his prior baseline, with hits in 2 of his last 5 games. His strikeout rate has climbed to 39%.
0.111 hit rate · 0.111 TB/PA · 0.175 hit rate · 0.286 TB/PA
Based on plate appearances before 2026-09-01, with today's posted lineups when available. Injuries, weather, bullpen availability, and park factors are not yet included.