Pittsburgh Pirates at St. Louis Cardinals, 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 STL.
Game center
From the ESPN box score.
Top performers
Pirates- Jared TrioloBatting2-3, 1 RBI
- Jared JonesPitching4.2 IP, 3 ER, 6 K
Cardinals- Jimmy CrooksBatting1-3, 1 HR, 2 RBI
- Quinn MathewsPitching5.2 IP, 1 ER, 7 K
Scoring summary
- 8Walker scored on error, Báez safe at first on throwing error by shortstop Gonzalez.1–4
- 5Triolo singled to left, Mangum scored, Triolo to second, Davis to third.1–3
- 4Church hit sacrifice fly to center, Walker scored.0–3
- 3Crooks homered to right (416 feet), Gorman scored.0–2
The pick
Reconstructed from what was known before the game: the ratings at that point and the closing line.
Pirates 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
- PIT 52%
- ML PIT -112 / STL +105
- Pre-line forecast
- PIT 51%
- Elo + market-implied
- Elo ratings
- PIT 49%
- Ratings vs. market
- −2.9 pts
- PIT: Elo 49.1%, market 52.0%
- Fair odds
- PIT -108
- STL +108 · the forecast as odds, no margin
- Pregame projection
- PIT 3.8 – 3.7 STL
- Margin from the forecast, posted total 7.5
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 | PIT | STL | Why |
|---|---|---|---|
| Team rating | 1495 | 1489 | Elo entering the game; 1500 is league average |
| Home field | — | +18 | Worth 18 Elo in MLB |
| Starting pitchers | −5 | −12 | PIT: Jared Jones: team allows 0.27 more runs than with its usual starter (≈10 weighted starts) · STL: Quinn Mathews: team allows 0.58 more runs than with its usual starter (≈3 weighted starts) |
| Elo ratings | STL +7 Elo | STL 50.9% | |
| Market-implied ratings | PIT 51.3% | Team strength as past closing lines priced it, same game context | |
| Pre-line forecast | PIT 51.0% | 15% Elo, 85% market-implied (log-odds blend) | |
| Forecast | PIT 52.0% | 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. Opponent Elo: how strong the teams each has played are, 1st the toughest.
| PIT | Stat | STL |
|---|---|---|
| 5th of 304.9 | Runs scored | 4.417th of 30 |
| 22nd of 304.7 | Runs allowed | 4.519th of 30 |
| 10th of 30+0.2 | Margin | −0.117th of 30 |
| 10th of 305–5 | Last 10 | 3–727th of 30 |
| 19th of 3031–38 | Road vs home | 33–3623rd of 30 |
| 4th of 301506 | Opponent Elo | 15071st of 30 |
| 18th of 301495 | Elo rating | 148921st 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 |  PIT |  STL |
|---|---|---|
| Run line | 61–74 | 73–62 |
| Last 10 | 6–4 | 4–6 |
| Favorite | 26–44 | 14–33 |
| Underdog | 35–30 | 59–29 |
| Overs–unders | 72–59–4 | 58–70–7 |
| 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
PIT 23–23 STL in their last 46 meetings; the forecast called 21 of 46.