Celebrate 2023 MLB All-Star Week in Seattle at Capital One PLAY BALL PARK! From Saturday, July 8 through Tuesday, July 11 at Lumen Field and the Lumen Field Event Center, fans can enjoy a once-in-a-lifetime indoor/outdoor experience, blending baseball, softball, music, food, the latest in VR technology, shopping, fashion and more! Plus, an all-time lineup of former Seattle baseball greats – including Edgar Martinez, Bret Boone and Mike Cameron – will attend to sign autographs, participate in clinics, lead demonstrations and pose for photos.