The San Francisco Giants host the Tampa Bay Rays on August 15, 2025. First pitch from Oracle Park is scheduled for 10:15 p.m. EDT; the game will be broadcast on NBCS-BA.
Joe Boyle and Landen Roupp will start for the Rays and Giants, respectively, in the opener of this three-game series.
Find my MLB betting preview and Rays vs Giants prediction below, as well as probable pitchers, betting trends, injury reports and more.
My Rays vs Giants Prediction
- Rays vs Giants pick: Rays Moneyline (+110)
My Rays vs Giants best bet is on Tampa Bay's moneyline. Make sure to find the best odds by checking our live MLB odds page.
Rays vs Giants Odds
| Rays Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -194 | 8 -114o / -107u | +108 |
| Giants Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +158 | 8 -114o / -107u | -132 |
Rays vs Giants Projected Starting Pitchers
| RHP Joe Boyle (TB) | Stat | RHP Landen Roupp (SF) |
|---|---|---|
| 1-2 | W-L | 7-6 |
| 0.0 | fWAR (FanGraphs) | 1.4 |
| 3.82 / 3.92 | ERA / xERA | 3.11 / 4.06 |
| 4.97 / 4.87 | FIP / xFIP | 3.59 / 4.04 |
| 1.08 | WHIP | 1.43 |
| 11.8 | K-BB% | 11.9 |
| 35.9 | GB% | 45.7 |
| 112 | Stuff+ | 94 |
| 75 | Location+ | 105 |
Rays vs Giants Preview
The Giants have lost five straight games. As if that wasn't bad enough, they have scored a combined five runs during that span, scoring less than two runs in each of the past four contests.
That performance, of course, has San Francisco at the bottom of the wRC+ standings this past week, with a 53 rating.
This should help struggling Rays starter Joe Boyle to get a quality start here and let their effective bullpen take over. Tampa Bay relievers rank ninth in MLB with a 3.70 ERA.
The Rays are coming off a series win against the A's and will look to continue their successful road trip at Oracle Park.
Junior Caminero has been on fire over the last seven days, with three homers, seven RBIs, a .381 average and a 1.266 OPS.
Our Bet Labs recommendation is to back the underdog tonight at a great value.
In interleague matchups early in a series, road underdogs often hold unseen advantages. These games introduce travel and scouting uncertainty, and early games feature lineups and matchups unfamiliar to bettors and models.
Public perception tends to lean too heavily on home-field advantage.
Interleague games introduce more unpredictability due to differences in lineup construction (DH vs. pitcher batting) and unfamiliar opposing pitchers.
When combined with road dog pricing, it creates exploitable inefficiencies in early matchups.
Pick: Rays Moneyline (+110, Fanatics)
