$10 Bonus on Mariners vs Orioles MLB: Use Kalshi Code PREMARLINES

Written By John Carlo Villaruel | Published at June 9, 2026
$10 Bonus on Mariners vs Orioles MLB Use Kalshi Code PREMARLINES

Kalshi is making things interesting with an exclusive new offer for anyone wanting to get right in on the American League duel between the Mariners and the Orioles this Wednesday at Camden Yards. Simply pop in our promo code PREMARLINES when you register for a Kalshi account and trade at least $10 on any prediction markets you like. In return, we’ll load up your account with an extra $10 in trading bonus so you won't miss out on any of the action in this pivotal American League clash.

Mariners-Orioles Same Game Parlay Options

Although the Orioles have struggled early in the season, they still remain in the hunt for the AL East division title thanks to the stellar individual performances of hitting duo Pete Alonso and Taylor Ward. The 32-year old Ward, in particular, has been absolutely going bonkers this season with 20 RBIs and 61 hits in 65 games played.

With the Orioles taking on an offense-driven team like the Mariners here, expect the former to bank on situational hitting and small-ball execution to keep themselves within striking distance and that could give Ward the opportunity he needs to stack up his hits tally here. If the Orioles can keep traffic on the bases and force the Mariners’ pitching staff into repeated high-pressure innings, Ward should find himself with multiple opportunities to cash in at the plate.

However, we just can’t ignore how tough this matchup is for the Orioles if Julio Rodriguez and the rest of the Mariners’ offense get going early. The Mariners don’t need many chances to score and once they start finding gaps and putting runners on, the pressure immediately shifts onto the Orioles’ pitching staff. For that reason, we are liking the Mariners to win outright here and we’ll sprinkle the Julio Rodriguez RBI contract in there as well because he’s usually involved when the team starts building rallies and putting runners in scoring position.

Creating Your New Kalshi Account for MLB

You’ll need a Kalshi account before you can activate the promo code PREMARLINES but that shouldn’t be an issue since it literally just takes minutes to get started as you can see below.

  1. Visit the Kalshi website or click on any Kalshi banners you can see on this page
  2. Register for a Kalshi account using the promo code PREMARLINES
  3. Make a qualifying trade of at least $10 on any prediction markets you like
  4. Receive an extra $10 in trading bonus to use on your Mariners-Orioles same-game parlay