San Francisco Giants vs Pittsburgh Pirates Predictions

Pittsburgh has the clearer path

The Pirates host the Giants at PNC Park on September 3, with first pitch scheduled for 12:35 p.m. ET. Pittsburgh enters at 68-71, 11 games better than San Francisco at 57-82.

Pittsburgh has also won three straight, including a 13-12 victory over San Francisco on September 1. The way the Pirates won is less convincing. They scored nine runs in the third inning, gave back a six-run lead and escaped on a throwing error in the ninth.

Pittsburgh's starter is still unknown

San Francisco is expected to start right-hander Blade Tidwell, who is 0-1 with a 4.54 ERA and 31 strikeouts. MLB's latest game information did not list a Pittsburgh starter, and neither batting order had been posted.

Tidwell's line gives San Francisco no clear pitching edge. Still, the Pirates cannot be credited with the better matchup on the mound until they name a starter. That is a significant unknown at a favorite's price.

The Giants are missing key pieces

San Francisco will be without several notable players. Willy Adames is on the injured list with a left elbow sprain, Matt Chapman is out after season-ending core-muscle surgery, and Harrison Bader is on the 60-day injured list with plantar fasciitis. Pitchers Adrian Houser and Sam Hentges are also unavailable.

The injuries reduce the Giants' options in the lineup and on the mound, reinforcing Pittsburgh's case as the more likely winner at home. They do not resolve the uncertainty surrounding the Pirates' starter.

Heat and storms could affect pitching plans

The Pittsburgh forecast calls for a high near 90 degrees, a 50 percent chance of showers and thunderstorms, and southwest winds of 5 to 10 mph. A Heat Advisory is scheduled to remain in effect through Thursday evening.

A delay could shorten a starter's outing and force either club deeper into its bullpen. That possibility carries more weight after the teams combined for 25 runs in the September 1 opener.

Prediction and betting assessment

Pittsburgh's better record, home field and three-game winning streak make it the most likely winner. San Francisco's depleted roster widens that edge, but the unannounced Pirates starter limits confidence. Pirates win, 5-4.

Most likely to win is not the same as worth betting at the quoted price. A secondary consensus market listed Pittsburgh at -162, San Francisco at +136, the Pirates at -1.5 on the run line and the total at 8.5. Laying -162 asks too much with Pittsburgh's starter unconfirmed, especially after the Pirates nearly lost a six-run lead to this opponent.

The authoritative SPF packet contains no moneyline, run line or total, so it offers no verified SPF price for a wager. Pittsburgh is the prediction, but at the available secondary consensus price, the betting lean is a pass.