Buy Tickets for Athletics vs. Mariners on April 21

The Athletics (12-11) visit the Seattle Mariners (10-14) at 9:40 p.m. ET on Tuesday, April 21.

Athletics vs. Mariners: Game Info and Tickets

• Date: Tuesday, April 21, 2026
• Time: 9:40 p.m. ET
• TV: Mariners.TV and NBCS-CA
• Location: Seattle, Washington
• Venue: T-Mobile Park
• Tickets: StubHub | Ticketmaster | Vivid Seats

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Upcoming Mariners Games

• 4/21/2026 vs. Athletics: 9:40 p.m. ET. Starters - SEA: Luis Castillo, OAK: Jacob Lopez
• 4/22/2026 vs. Athletics: 4:10 p.m. ET. Starters - SEA: Logan Gilbert, OAK: Aaron Civale
• 4/24/2026 at Cardinals: 8:15 p.m. ET. Starters - SEA: George Kirby, STL: Andre Pallante
• 4/25/2026 at Cardinals: 2:15 p.m. ET. Starters - SEA: Bryan Woo, STL: Matthew Liberatore
• 4/26/2026 at Cardinals: 2:15 p.m. ET. Starters - SEA: Emerson Hancock, STL: Michael McGreevy
• 4/27/2026 at Twins: 7:40 p.m. ET. Starters - SEA: Luis Castillo, MIN: TBA
• 4/28/2026 at Twins: 7:40 p.m. ET. Both starters TBA
• 4/29/2026 at Twins: 1:40 p.m. ET. Both starters TBA
• 5/1/2026 vs. Royals: 9:45 p.m. ET. Both starters TBA
• 5/2/2026 vs. Royals: 9:40 p.m. ET. Both starters TBA
• 5/3/2026 vs. Royals: 4:10 p.m. ET. Both starters TBA
• 5/4/2026 vs. Braves: 9:40 p.m. ET. Both starters TBA
• 5/5/2026 vs. Braves: 9:40 p.m. ET. Both starters TBA
• 5/6/2026 vs. Braves: 4:10 p.m. ET. Both starters TBA
• 5/8/2026 at White Sox: 7:40 p.m. ET. Both starters TBA
• 5/9/2026 at White Sox: 7:10 p.m. ET. Both starters TBA
• 5/10/2026 at White Sox: 2:10 p.m. ET. Both starters TBA
• 5/11/2026 at Astros: 8:10 p.m. ET. Both starters TBA
• 5/12/2026 at Astros: 8:10 p.m. ET. Both starters TBA
• 5/13/2026 at Astros: 8:10 p.m. ET. Both starters TBA

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Upcoming Athletics Games

• 4/21/2026 at Mariners: 9:40 p.m. ET. Starters - OAK: Jacob Lopez, SEA: Luis Castillo
• 4/22/2026 at Mariners: 4:10 p.m. ET. Starters - OAK: Aaron Civale, SEA: Logan Gilbert
• 4/24/2026 at Rangers: 8:05 p.m. ET. Starters - OAK: Luis Severino, TEX: Nathan Eovaldi
• 4/25/2026 at Rangers: 7:05 p.m. ET. Starters - OAK: Jeffrey Springs, TEX: MacKenzie Gore
• 4/26/2026 at Rangers: 2:35 p.m. ET. Starters - OAK: J.T. Ginn, TEX: Kumar Rocker
• 4/28/2026 vs. Royals: 9:40 p.m. ET. Both starters TBA
• 4/29/2026 vs. Royals: 9:40 p.m. ET. Both starters TBA
• 4/30/2026 vs. Royals: 3:05 p.m. ET. Both starters TBA
• 5/1/2026 vs. Guardians: 9:40 p.m. ET. Both starters TBA
• 5/2/2026 vs. Guardians: 4:05 p.m. ET. Both starters TBA
• 5/3/2026 vs. Guardians: 4:05 p.m. ET. Both starters TBA
• 5/5/2026 at Phillies: 6:40 p.m. ET. Both starters TBA
• 5/6/2026 at Phillies: 6:40 p.m. ET. Both starters TBA
• 5/7/2026 at Phillies: 6:40 p.m. ET. Both starters TBA
• 5/8/2026 at Orioles: 7:05 p.m. ET. Both starters TBA
• 5/9/2026 at Orioles: 4:05 p.m. ET. Both starters TBA
• 5/10/2026 at Orioles: 1:35 p.m. ET. Both starters TBA
• 5/12/2026 vs. Cardinals: 9:40 p.m. ET. Both starters TBA
• 5/13/2026 vs. Cardinals: 9:40 p.m. ET. Both starters TBA
• 5/14/2026 vs. Cardinals: 3:05 p.m. ET. Both starters TBA

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