Boston Red Sox at New York Yankees, 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 NYY.
Game center
From the ESPN box score.
Top performers
- Willson ContrerasBatting2-2, 1 HR, 1 RBI
- Sonny GrayPitching4.2 IP, 2 ER, 5 K
- Cody BellingerBatting2-5, 1 HR, 4 RBI
- Max FriedPitching6.0 IP, 1 ER, 6 K
Scoring summary
- 7
Wells singled to center, Chisholm Jr. scored, Grisham to third.2–9 - 7
Sogard homered to right (362 feet).2–8 - 6
Bellinger homered to right center (360 feet), Grisham scored and Rice scored.1–8 - 6
McMahon grounded out to third, Chisholm Jr. scored, Grisham to second.1–5 - 6
Wells hit sacrifice fly to left, Lombard Jr. scored, Chisholm Jr. to third.1–4 - 6
Lombard Jr. singled to center, Jones scored.1–3 - 6
Contreras homered to right center (387 feet). Umpire review: call on the field was upheld.1–2 - 5
Bellinger singled to right, Wells scored, Rice to second.0–2 - 4
García Jr. homered to right center (387 feet).0–1
The pick
Reconstructed from what was known before the game: the ratings at that point and the closing line.
Yankees 55%
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
- NYY 55%
- ML BOS +113 / NYY -137
- Pre-line forecast
- NYY 54%
- Elo + market-implied
- Elo ratings
- NYY 53%
- Ratings vs. market
- −2.3 pts
- NYY: Elo 52.8%, market 55.2%
- Fair odds
- NYY -123
- BOS +123 · the forecast as odds, no margin
- Pregame projection
- BOS 3.3 – 3.7 NYY
- Margin from the forecast, posted total 7
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 | BOS | NYY | Why |
|---|---|---|---|
| Team rating | 1531 | 1554 | Elo entering the game; 1500 is league average |
| Home field | — | +18 | Worth 18 Elo in MLB |
| Starting pitchers | +25 | +4 | BOS: Sonny Gray: team allows 1.23 fewer runs than with its usual starter (≈10 weighted starts) · NYY: Max Fried: team allows 0.22 fewer runs than with its usual starter (≈10 weighted starts) |
| Elo ratings | NYY +20 Elo | NYY 52.8% | |
| Market-implied ratings | NYY 54.5% | Team strength as past closing lines priced it, same game context | |
| Pre-line forecast | NYY 54.2% | 15% Elo, 85% market-implied (log-odds blend) | |
| Forecast | NYY 55.2% | 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.
| BOS | Stat | |
|---|---|---|
| 23rd of 304.3 | Runs scored | 4.68th of 30 |
| 3rd of 303.8 | Runs allowed | 3.72nd of 30 |
| 7th of 30+0.5 | Margin | +0.94th of 30 |
| 12th of 305–5 | Last 10 | 5–512th of 30 |
| 4th of 3046–35 | Road vs home | 46–348th of 30 |
| 12th of 301501 | Opponent Elo | 149918th of 30 |
| 7th of 301531 | Elo rating | 15543rd 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 | 79–84 | 90–72 |
| Last 10 | 4–6 | 6–4 |
| Favorite | 44–62 | 63–62 |
| Underdog | 35–22 | 27–10 |
| Overs–unders | 73–86–4 | 76–80–6 |
| Overs–unders, last 10 | 3–7 | 9–1 |
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
BOS 31–25 NYY in their last 56 meetings; the forecast called 28 of 56.
- Sep 29
BOS 0 @ NYY 9PlayoffsPicked NYY 54%Hit - Aug 30
BOS 1 @ NYY 16Picked BOS 57%Miss - Aug 29
BOS 2 @ NYY 9Picked NYY 57%Hit - Aug 29
BOS 6 @ NYY 0Picked NYY 50%Miss - Aug 28
BOS 0 @ NYY 1Picked NYY 59%Hit - Jun 28
NYY 4 @ BOS 5Picked BOS 50%Hit - Jun 27
NYY 1 @ BOS 4Picked NYY 53%Miss - Jun 26
NYY 1 @ BOS 6Picked BOS 53%Hit



