San Francisco Giants at Houston Astros, 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 HOU.
Game center
From the ESPN box score.
Top performers
- Wilmer FloresBatting1-4, 1 HR, 1 RBI
- Logan WebbPitching7.2 IP, 2 ER, 5 K
- Alex BregmanBatting1-4, 1 HR, 2 RBI
- Framber ValdezPitching6.0 IP, 2 ER, 8 K
Scoring summary
- 9
Flores homered to left (352 feet).4–2 - 9
Pitch 2 : Ball In Play4–2 - 9
Pitch 1 : Ball 13–2 - 8
Bregman homered to left (386 feet), Hensley scored.3–2 - 8
Pitch 2 : Ball In Play3–2 - 8
Pitch 1 : Ball 13–2 - 7
Bart doubled to center, Conforto scored.3–0 - 7
Pitch 2 : Ball In Play3–0 - 7
Pitch 1 : Ball 12–0 - 6
Haniger singled to center, Slater scored, Estrada to third.2–0 - 6
Pitch 1 : Ball In Play2–0 - 6
Slater singled to right, Bart scored, Slater to second.1–0 - 6
Pitch 7 : Ball In Play1–0 - 6
Pitch 6 : Strike 2 Foul0–0 - 6
Pitch 5 : Strike 2 Looking0–0 - 6
Pitch 4 : Ball 30–0 - 6
Pitch 3 : Ball 20–0 - 6
Pitch 2 : Ball 10–0 - 6
Pitch 1 : Strike 1 Looking0–0
The pick
Reconstructed from what was known before the game: the ratings at that point.
Astros 54%
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
- No line yet
- Pre-line forecast
- HOU 54%
- Elo + market-implied
- Elo ratings
- HOU 56%
- Fair odds
- HOU -116
- SF +116 · the forecast as odds, no margin
- Pregame projection
- SF 4.3 – 4.6 HOU
- Margin from the forecast, total from team scoring ratings
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 | SF | HOU | Why |
|---|---|---|---|
| Team rating | 1489 | 1509 | Elo entering the game; 1500 is league average |
| Home field | — | +18 | Worth 18 Elo in MLB |
| Starting pitchers | −5 | −1 | SF: Logan Webb: team allows 0.24 more runs than with its usual starter (≈5 weighted starts) · HOU: Framber Valdez: team allows 0.06 more runs than with its usual starter (≈5 weighted starts) |
| Elo ratings | HOU +42 Elo | HOU 56.0% | |
| Market-implied ratings | HOU 53.3% | Team strength as past closing lines priced it, same game context | |
| Pre-line forecast | HOU 53.7% | 15% Elo, 85% market-implied (log-odds blend) | |
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.
| SF | Stat | |
|---|---|---|
| 14th of 304.5 | Runs scored | 4.515th of 30 |
| 25th of 305.2 | Runs allowed | 3.74th of 30 |
| 22nd of 30−0.7 | Margin | +0.810th of 30 |
| 5th of 306–4 | Last 10 | 6–45th of 30 |
| 23rd of 305–8 | Road vs home | 8–1021st 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.
Head to head
SF 1–1 HOU in their last 2 meetings; the forecast called 1 of 2.



