Baltimore Orioles at Seattle Mariners, MLB forecast
Win probability
Starts from the pregame forecast, then moves with the score and the time left after each inning. Above the line favors SEA.
Game center
From the ESPN box score.
Top performers
- Gunnar HendersonBatting3-5, 1 HR, 2 RBI
- Corbin BurnesPitching6.0 IP, 2 ER, 6 K
- Mitch GarverBatting1-4, 1 HR, 2 RBI
- Bryce MillerPitching5.2 IP, 2 ER, 6 K
Scoring summary
- 8
Westburg homered to center (403 feet).3–7 - 8
Pitch 6 : Ball In Play3–7 - 8
Pitch 5 : Ball 32–7 - 8
Pitch 4 : Strike 2 Swinging2–7 - 8
Pitch 3 : Ball 22–7 - 8
Pitch 2 : Ball 12–7 - 8
Pitch 1 : Strike 1 Foul2–7 - 7
Garver homered to center (402 feet), Crawford scored.2–7 - 7
Pitch 5 : Ball In Play2–7 - 7
Pitch 4 : Ball 22–5 - 7
Pitch 3 : Ball 12–5 - 7
Pitch 2 : Strike 2 Foul2–5 - 7
Pitch 1 : Strike 1 Looking2–5 - 7
Crawford doubled to right, Haniger scored, Rodríguez scored and France scored.2–5 - 7
Pitch 5 : Ball In Play2–5 - 7
Pitch 4 : Strike 1 Looking2–2 - 7
Pitch 3 : Ball 32–2 - 7
Pitch 2 : Ball 22–2 - 7
Pitch 1 : Ball 12–5 - 5
Bliss grounded into double play, shortstop to second to first, France scored, Haniger out at second, Rojas to third.2–2 - 5
Pitch 4 : Ball In Play2–2 - 5
Pitch 3 : Strike 2 Swinging2–1 - 5
Pitch 2 : Strike 1 Swinging2–1 - 5
Pitch 1 : Ball 12–1 - 5
Rodríguez homered to center (428 feet).2–1 - 5
Pitch 3 : Ball In Play2–1 - 5
Pitch 2 : Strike 2 Foul2–0 - 5
Pitch 1 : Strike 1 Swinging2–0 - 3
Henderson homered to left (378 feet), McCann scored.2–0 - 3
Pitch 2 : Ball In Play2–0 - 3
Pitch 1 : Ball 10–0
The pick
Reconstructed from what was known before the game: the ratings at that point and the closing line.
Orioles 58%
Forecast Elo ratings alone
How often that comes true: MLB favorites the forecast gave 55–60% have won 55.5% of 2,596 graded games.
- Market
- BAL 58%
- ML BAL -150 / SEA +130
- Pre-line forecast
- BAL 58%
- Elo + market-implied
- Elo ratings
- BAL 58%
- Ratings vs. market
- 0.0 pts
- BAL: Elo 58.0%, market 58.0%
- Fair odds
- BAL -138
- SEA +138 · the forecast as odds, no margin
- Pregame projection
- BAL 3.6 – 2.9 SEA
- Margin from the forecast, posted total 6.5
How the number is built
Elo inputs in rating points (higher favors that team; 25–28 Elo is about a point of spread in football and basketball), then how the pieces combine.
| Factor | BAL | SEA | Why |
|---|---|---|---|
| Team rating | 1564 | 1515 | Elo entering the game; 1500 is league average |
| Home field | — | +18 | Worth 18 Elo in MLB |
| Starting pitchers | +12 | −13 | BAL: Corbin Burnes: team allows 0.58 fewer runs than with its usual starter (≈10 weighted starts) · SEA: Bryce Miller: team allows 0.65 more runs than with its usual starter (≈10 weighted starts) |
| Elo ratings | BAL +56 Elo | BAL 58.0% | |
| Market-implied ratings | BAL 58.1% | Team strength as past closing lines priced it, same game context | |
| Pre-line forecast | BAL 58.1% | 15% Elo, 85% market-implied (log-odds blend) | |
| Forecast | BAL 58.0% | Follows the market (vig removed): in testing, adding the ratings made it less accurate | |
Tale of the tape
This season coming into the game, regular season, each number with its league rank (the longer the bar, the higher). Home and road: the host's record at home against the visitor's on the road.
| BAL | Stat | |
|---|---|---|
| 1st of 305.2 | Runs scored | 3.827th of 30 |
| 5th of 303.8 | Runs allowed | 3.84th of 30 |
| 1st of 30+1.4 | Margin | 0.015th of 30 |
| 5th of 306–4 | Last 10 | 3–723rd of 30 |
| 1st of 3026–14 | Road vs home | 28–166th of 30 |
Rating history
Each team's Elo over the last two seasons. Hover or drag to compare on any date.
Recent form
Last five results, and whether the forecast hit.
Against the line
How each team has done against the closing spread and total, coming into this game.
| This season | ||
|---|---|---|
| Run line | 49–37 | 37–50 |
| Last 10 | 4–6 | 3–7 |
| Favorite | 34–33 | 21–35 |
| Underdog | 15–4 | 16–15 |
| Overs–unders | 46–38–2 | 34–51–2 |
| Overs–unders, last 10 | 5–5 | 4–6 |
Against each game's closing line. Books set every line knowing these records: across 3,901 past games, the team with the better record against the spread so far that season covered 51.2%, short of the 52.4% a standard −110 bet needs, and over/under streaks held 48.0% of the time. They describe the past.
Head to head
BAL 8–3 SEA in their last 11 meetings; the forecast called 5 of 11.



