PLAYOFFHOTELS
MLB · JULY 18, 2026 ● LIVE

San Francisco Giants at Seattle Mariners

T-Mobile Park · Seattle, WA

THE PICK

SF San Francisco GiantsAWAY · 1471 ELO
@
Seattle MarinersHOME · 1502 ELO SEA
41.8% WIN PROBABILITY 58.2%

The model makes Seattle Mariners a 58.2% favorite — home advantage included. One game is one game: a 58.2% edge still loses 41.8 times in 100.

Prediction history

6 UPDATES

Every time the model moved this pick — logged in full. It updates until 15 minutes before gametime, then locks.

58.2% Seattle Mariners ▲ +0.4
Ratings shifted on the latest results run.
57.8% Seattle Mariners ▼ -0.3
Ratings shifted on the latest results run.
58.1% Seattle Mariners ▲ +0.8
Ratings shifted on the latest results run.
57.3% Seattle Mariners ▼ -0.9
Ratings shifted on the latest results run.
58.2% Seattle Mariners ▼ -0.3
Ratings shifted on the latest results run.
OPEN
58.5% Seattle Mariners OPENING LINE
First model run when the matchup posted. Elo gap of 31 points at open.

The factors

1 IN THE NUMBER

Everything the model sees for this game. Only backtest-validated signals move the probability — the rest is context, shown anyway.

PROBABLE STARTERS

Logan Webb FIP 3.44 · ERA 3.86 · 100.1 IP
Bryan Woo FIP 3.05 · ERA 4.23 · 104.1 IP

GAME-TIME CONDITIONS · RETRACTABLE ROOF · DAY GAME

72°F DEW 54°F HUM 54% WIND 8 MPH CLOUD 0% 1018 hPa

SCHEDULE & TRAVEL

SF REST 0D SEA REST 0D SF TRAVELED 0 MI INTERLEAGUE

IN THE NUMBER

PITCH +3 ELO

The numbers

AWAY

San Francisco Giants
ELO RATING1471
RANK#24
RECORD41-55
LAST 105-5
STREAKW2

HOME

Seattle Mariners
ELO RATING1502
RANK#16
RECORD48-49
LAST 104-6
STREAKW1

Ratings come from every MLB result this season — updated daily, weighted by margin of victory, with Seattle Mariners getting the standard home bump. An Elo difference of 31 points plus home advantage at T-Mobile Park produces the 58.2% call. Full methodology →

What could break the pick

San Francisco Giants come in hot on a 2-game win streak — recent form the season-long rating hasn't fully priced in. The edge is real but modest; single-game variance eats edges like this regularly. Starting pitchers, lineup cards, and bullpen usage move real outcomes in ways a rating system can’t see.