Missed opportunities plagued the Seattle Mariners in their series split against the Kansas City Royals from June 30-July 3.

The Arizona Diamondbacks celebrate the Fourth of July by hosting the Kansas City Royals Friday in the opener of a 3-game set ...

Vinnie Pasquantino had a two-run single in the seventh inning and the Kansas City Royals beat the Seattle Mariners 3-2.

S EATTLE — In an all-too-common occurrence this season, the Seattle Mariners were unable to capitalize on several ...

The Kansas City Royals (40-47) and the Seattle Mariners (45-41) wrap up a 4-game series Thursday. First pitch from T-Mobile ...

The Seattle Mariners got timely hits when they needed to and let the bullpen handle the rest in a 3-2 win against the Kansas ...

Julio Rodriguez hit a go-ahead RBI single in the seventh inning and Randy Arozarena drove in two runs as the Seattle Mariners ...

The Kansas City Royals take on the Seattle Mariners tonight in the third installment of this year’s Battle for Grass Creek.

The Seattle Mariners were unable to complete multiple attempted comebacks in a 6-3 loss against the Kansas City Royals on ...