- Rangers serve Mariners Texas-sized helping of Own Medicine, defeat Mariners 8-5
- 84-69: Chart
- Mariners Game #153 Preview, 9/22/23: SEA at TEX
- Mariners Game Notes — September 22 at Texas
- Julio Rodríguez, Cal Raleigh and J.P. Crawford: 2023 AL Silver Slugger Candidates
- The sLLeeper agents who’ve saved the Mariners’ season (and could win them the AL West)
- Mariners Moose Tracks, 9/21/23: Reid VanScoter, J.C. Mejía, and Yusei Kikuchi
- The Seattle Mariners take an easy sweep in Oakland, enjoy relaxing day before work week of hell
- Mariners Game #152: Game Thread II
- Mariners Moose Tracks, 9/20/23: Shohei Ohtani, Josh Hader, and the San Diego Padres
- The Mariners win, the A’s suffer the death of 1,000 cuts
- 82-68: Chart
- Game #150: Game Thread II
- Browns RB Nick Chubb carted off after knee injury
- Mariners Game #150 Preview, 9/18/23: SEA at OAK
- Mariners Game Notes — September 18 at Oakland Athletics
- Lookout Landing Watch Party at Growler Guys - September 23, 2023 - Playoff push!
- Series Preview: Mariners (81-68) at Athletics (46-103)
- Mariners Minor League Roundup, September 12-17
- Mariners Moose Tracks, 9/18/23: Jose Ramirez, Drey Jameson, and Danny Jansen
- Seattle Mariners stay asleep, lose to Dodgers in series sweep
- Gassed or Gassed Up? - Meet At The Mitt Podcast
- Mariners Moose Tracks, 9/17/23: Lazaro Montes, Shohei Ohtani, and Charlie Manuel
- Mariners tip over jar of magic beans, find it empty yet again, lose in extras
- Mariners battle Dodgers but come up short, lose 6-3
- 81-66: Chart
- Mariners Game #147, 9/15/23: LAD at SEA
- Mariners Game Notes — Sept. 15 vs. Los Angeles Dodgers
- Series Preview: Mariners (81-65) vs. Dodgers (88-57)
- Mariners Reinstate C Brian O’Keefe from Paternity List and Option him to Triple-A Tacoma
- Three in Mariners Organization Named PBSCCS, PBATS Award Winners
- About Last Night: An Evening of Dogs and Generosity
- Mariners Moose Tracks, 9/14/23: Max Scherzer, Mike Rizzo, and Alex Rodriguez
- Mariners go back to that good old one-run magic, win 3-2 against Angels
- Game #146: Game Thread II
- Mariners Moose Tracks, 9/13/23: Tom Murphy, David Stearns, and Rich Hill
- Mariners set the vibes in order, shut out Angels 8-0
- 80-65: Chart
- Mariners Game #145, 9/12/23: Los Angeles Angels of Anaheim at Seattle
- For Julio Rodríguez, personal milestones aren’t as important as winning ballgames
- Mariners Minor League Roundup, September 5-10
- Older and wiser, Jarred Kelenic discusses what he’s learned post-injury
- Mariners Game Notes — September 11 vs. Los Angeles-AL
- Hard-Hit Ball of the Week: J.P. Crawford was having a breakout year. Then he got better.
- Agony, ecstasy, more agony: Mariners lose to Angels, 8-5, on historic night for J-Rod
- Game #143: Extras Thread
- Game #143: More Game Thread
- Mariners Game #143, 9/11/23: Angels at Mariners
- Jarred Kelenic rejoins Mariners, Cade Marlowe optioned to Tacoma
- Series Preview: Mariners (79-64) vs. Angels (67-77)
- Slog In The Swamp - Who Needs To Step Up In Seattle? Meet at the Mitt Podcast
- Mariners melt in Florida sun, lose 6-3
- Game #142: Child of Game Thread
- Mariners Game #142 Preview, 9/10/2023: SEA at TB
- Mariners Moose Tracks, 9/10/23: George Kirby, Ronald Acuña Jr, and Austin Hays
- Mariners Recall RHP Eduard Bazardo from Triple-A Tacoma
- Seattle Mariners lose in walkoff fashion as Tampa Bay Rays work harder, faster, better, stronger
- Mariners Moose Tracks, 9/9/23: Julio Rodríguez, Walker Buehler, and Germán Márquez
- College football Week 2: Familiar foes, must-see players, more
- Mariners Become a Tale of Two Teams, Lose to Rays 7-4
- Daniil Medvedev ousts Carlos Alcaraz to reach US Open final
- FanPost Friday: How are we feeling about those new MLB rules?
- Mariners Moose Tracks, 9/8/23: Cal Raleigh, Evan Carter, and Stephen Strasburg
- Pooped or not, the Mariners have enough to shut out the Rays 1-0
- 79-61: Chart
- Game #140: More Game Thread
- Mariners Game Notes — September 7 at Tampa Bay
- Do the Mariners have any reinforcements left on the farm?
- Series Preview: Mariners (78-61) at Rays (85-55)
- New Dogs, Old Tricks - Who Will Be The Hero of September? Meet at the Mitt Podcast
- Mariners Moose Tracks, 9/7/23: Jarred Kelenic, Shōta Imanaga, and Julio Urías
- Dr. Gilbert and Mr. Walter are themselves, lead Mariners to 8-3 victory
- Game #139: Game Thread II
- Mariners Game #139 Game Preview, SEA at CIN
- Mariners Moose Tracks, 9/6/23: Paul Skenes, Giancarlo Stanton, and Anthony Rizzo
- The Seattle Mariners lose a game to the Cincinnati Reds they easily could have, should have won
- 77-61: Chart
- Mariners Game #138: Game Thread III
- Challenge of the Week: Scott Servais does it with emphasis
- Mariners Minor League Roundup: 8/29 - 9/4
- Cincinnati Runs Shower: Reds beat Mariners 6-3
- Mariners Game Notes — September 4 at Cincinnati
- Mariners Game #137 Preview, 9/4/23: SEA at CIN
- Series Preview: Mariners (77-59) at Reds (71-68)
- Mariners Moose Tracks, 9/4/23: Julio Rodriguez, Andres Munoz, and Pete Alonso
- Julio Rodríguez Named AL Player of Month, Andrés Muñoz Named AL Reliever of Month
- 77-59: Chart
- Penthouse View - What Successes Can The Mariners Sustain In September? Meet at the Mitt Podcast
- J.P. Crawford and Seattle Mariners Quiet Queens, Win 8-7
- Game #135: Game Thread II
- Mariners Name INF Hogan Windish Minor League Player of Month, RHP Tyler Cleveland Pitcher of Month
- Mariners Moose Tracks, 9/2/23: J.P. Crawford, Jasson Domínguez, and Nolan Schanuel
- Mariners understandably can’t score early, less understandably can’t score late, fall to Mets 2-1
- Game #134: Hey Guess What? Even More Game Thread
- Game #134: More Game Thread
- Mariners Game #134 Preview: 09/01/2023, SEA at NYM
- Mariners Game Notes — September 1 at New York Mets
- Mariners August Review (21–6)
- FanPost Friday: When the requiem becomes a roast—The 2023 Los Angeles Angels of Anaheim
- Series Preview: Mariners (76-57) at Mets (61-73)