The Seattle Mariners (32-27) host the Baltimore Orioles (23-36) on Wednesday, June 4, 2025. First pitch from T-Mobile Park is scheduled for 9:40 p.m. ET; the game will be broadcast on MASN2 and RootNW.
Find an Orioles vs Mariners prediction below, as well as probable pitchers, betting trends, the latest MLB lines and more.
Orioles vs Mariners Prediction, Expert Pick
- Orioles vs Mariners pick: Under 8.5
Our Orioles vs Mariners best bet is on the under. Make sure to find the best odds by checking our live MLB odds page.
Baltimore Orioles vs Seattle Mariners Odds, Lines
| Orioles Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 +150 | 8.5 -110o / -110u | -110 |
| Mariners Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -180 | 8.5 -110o / -110u | -110 |
Orioles vs Mariners Projected Starting Pitchers
| Cade Povich (BAL) | Stat | Emerson Hancock (SEA) |
|---|---|---|
| 1-4 | W-L | 2-2 |
| 0.4 | fWAR (FanGraphs) | 0.0 |
| 5.29 / 6.02 | ERA /xERA | 5.64 / 5.34 |
| 4.46 / 3.89 | FIP / xFIP | 5.11 / 4.33 |
| 1.53 | WHIP | 1.57 |
| 14.6 | K-BB% | 8.6 |
| 39.9 | GB% | 44.6 |
| 97 | Stuff+ | 90 |
| 103 | Location+ | 99 |
Orioles vs Mariners Prediction, Betting Analysis
This MLB system targets evening games where public interest on the over is muted, recent home team scoring has run slightly hot and subtle environmental signals align with lower-scoring outcomes.
It focuses on games that start between 7:00 p.m. and 11:59 p.m. ET in which the market over percentage is below 50, suggesting minimal public pressure on inflated totals.
Meanwhile, the wind direction — whether blowing in, across the field or neutral — paired with moderate temperatures between 26 and 74 degrees, introduces natural resistance to run scoring.
It also filters for games in which the home team is competitively priced on the moneyline so that there's no clear power imbalance that might inflate the total.
When layered together, these filters isolate a soft edge in a game environment where bettors overlook the under due to recency bias.
Pick: Under 8.5
Moneyline
There's no play on the moneyline.
Run Line (Spread)
There's no play on the run line.
Over/Under
Target the under for this Orioles vs. Mariners AL matchup.
