Cleveland Guardians 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
- Kyle ManzardoBatting1-4
- Luis OrtizPitching6.0 IP, 6 ER, 5 K
- J.P. CrawfordBatting1-3, 1 HR, 4 RBI
- Emerson HancockPitching7.0 IP, 0 ER, 4 K
Scoring summary
- 5
Garver singled to left, Arozarena scored.0–6 - 2
Crawford homered to right (377 feet), Tellez scored, Canzone scored and Mastrobuoni scored.0–5 - 2
Mastrobuoni singled to right, Arozarena scored, Canzone to second, Tellez to third.0–1
The pick
Reconstructed from what was known before the game: the ratings at that point and the closing line.
Mariners 52%
Forecast Elo ratings alone
How often that comes true: MLB favorites the forecast gave 50–55% have won 52.7% of 2,871 graded games.
- Market
- SEA 52%
- ML CLE +100 / SEA -120
- Pre-line forecast
- SEA 51%
- Elo + market-implied
- Elo ratings
- SEA 50%
- Ratings vs. market
- −1.9 pts
- SEA: Elo 50.3%, market 52.2%
- Fair odds
- SEA -109
- CLE +109 · the forecast as odds, no margin
- Pregame projection
- CLE 4.2 – 4.3 SEA
- Margin from the forecast, posted total 8.5
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 | CLE | SEA | Why |
|---|---|---|---|
| Team rating | 1504 | 1505 | Elo entering the game; 1500 is league average |
| Home field | — | +18 | Worth 18 Elo in MLB |
| Starting pitchers | +2 | −15 | CLE: Luis Ortiz: team allows 0.08 fewer runs than with its usual starter (≈10 weighted starts) · SEA: Emerson Hancock: team allows 0.74 more runs than with its usual starter (≈9 weighted starts) |
| Elo ratings | SEA +2 Elo | SEA 50.3% | |
| Market-implied ratings | SEA 50.9% | Team strength as past closing lines priced it, same game context | |
| Pre-line forecast | SEA 50.8% | 15% Elo, 85% market-implied (log-odds blend) | |
| Forecast | SEA 52.2% | 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. Opponent Elo: how strong the teams each has played are, 1st the toughest.
| CLE | Stat | |
|---|---|---|
| 25th of 303.9 | Runs scored | 4.412th of 30 |
| 16th of 304.2 | Runs allowed | 4.521st of 30 |
| 21st of 30−0.3 | Margin | −0.119th of 30 |
| 23rd of 303–7 | Last 10 | 3–723rd of 30 |
| 14th of 3016–19 | Road vs home | 18–1721st of 30 |
| 9th of 301502 | Opponent Elo | 149229th of 30 |
| 17th of 301504 | Elo rating | 150516th 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 | 32–37 | 28–41 |
| Last 10 | 4–6 | 1–9 |
| Favorite | 10–18 | 10–32 |
| Underdog | 22–19 | 18–9 |
| Overs–unders | 33–36 | 38–31 |
| Overs–unders, last 10 | 5–5 | 6–4 |
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
CLE 8–7 SEA in their last 15 meetings; the forecast called 6 of 15.



