
Just like this entire season, the Mariners’ East Coast road trip was filled with great disappointment interspersed with moments of competence. Walking away from Boston with two straight wins against one of the better teams in the AL is an accomplishment but it’s overshadowed by the totally lifeless performance in Toronto against a much more significant opponent (to their playoff odds anyway). So without much progress made, the Mariners return home this weekend to begin the softest and most important stretch of their season.
| Game | Time | Mariners Starter | Athletics Starter | Mariners Win% | Athletics Win% |
|---|---|---|---|---|---|
| Game 1 | Thursday, September 3 | 6:40 pm | LHP Kade Anderson | RHP Jack Perkins | 66.5% | 33.5% |
| Game 2 | Friday, September 4 | 7:10 pm | RHP Logan Gilbert | RHP J.T. Ginn | 67.2% | 32.8% |
| Game 3 | Saturday, September 5 | 6:40 pm | RHP George Kirby | LHP Jeffrey Springs | 70.5% | 29.5% |
| Game 4 | Sunday, September 6 | 1:10 pm | RHP Bryan Woo | LHP Gage Jump | 66.9% | 33.1% |
| Overview | Mariners | Athletics | Edge |
|---|---|---|---|
| Batting (wRC+) | 100 (9th in AL) | 95 (12th in AL) | Mariners |
| Fielding (FRV) | -42 (15th) | -38 (14th) | Athletics |
| Starting Pitching (FIP-) | 98 (8th) | 119 (14th) | Mariners |
| Bullpen (FIP-) | 102 (8th) | 104 (11th) | Mariners |
If you want to point to a prime example of how bad the AL West has been this year, the last time the Mariners and Athletics played each other in late May, the A’s were leading the division and Seattle swapped places with them in the standings after sweeping them in Sacramento. Since that series, the A’s have been the worst team in baseball by a pretty wide margin, winning just 32% of their games with a -169 run differential. All the progress they had made towards the end of last year and earlier this year has been completely undermined and it doesn’t seem like they’re any closer to building a competitive roster
| Player | Position | Bats | PA | K% | BB% | ISO | wRC+ |
|---|---|---|---|---|---|---|---|
| Henry Bolte | CF | R | 376 | 27.4% | 7.2% | 0.114 | 104 |
| Jeff McNeil | 1B | L | 437 | 11.0% | 5.9% | 0.100 | 85 |
| Zack Gelof | 2B | R | 343 | 25.4% | 7.6% | 0.197 | 110 |
| Lawrence Butler | RF | L | 445 | 25.8% | 12.4% | 0.140 | 91 |
| Donovan Walton | SS | L | 198 | 16.2% | 10.6% | 0.155 | 128 |
| Tommy White | 3B | R | 154 | 16.9% | 2.6% | 0.074 | 58 |
| Carlos Cortes | LF | L | 328 | 16.5% | 8.5% | 0.140 | 98 |
| Max Muncy | DH | R | 251 | 32.3% | 8.0% | 0.152 | 75 |
| Jonah Heim | C | S | 332 | 18.4% | 7.2% | 0.182 | 78 |
The biggest reason why the Athletics have struggled so much since June is because their lineup has been absolutely gutted by injuries; Brent Rooker (knee), Shea Langeliers (knee), Nick Kurtz (thumb), Tyler Soderstrom (hip), and Jacob Wilson (shoulder) have all succumbed to season-ending injuries. Those five are the core the team was building around so to have all of them sidelined at once has been a huge blow. There have been some positives despite all the struggles. Zack Gelof has been the team’s best hitter when he’s been on the field — he’s missed a bunch of time with a handful of minor scrapes and bruises. The demise of Lawrence Butler has been greatly exaggerated as well; since June 10, he’s put up a 131 wRC+ with nine home runs.
Probable Pitchers

| Pitcher | IP | K% | BB% | HR/FB% | GB% | ERA | FIP |
|---|---|---|---|---|---|---|---|
| Jack Perkins | 95.1 | 25.2% | 9.7% | 14.5% | 34.4% | 6.42 | 4.87 |
| Kade Anderson | 10 | 19.5% | 12.2% | 12.5% | 33.3% | 4.50 | 5.59 |
| Pitch | Usage vRHB | Usage vLHB | Velocity | Stuff+ | Whiff+ | BIP+ | xwOBA |
|---|---|---|---|---|---|---|---|
| Four-seam | 34.4% | 30.1% | 95.8 | 94 | 73 | 54 | 0.392 |
| Sinker | 6.6% | 1.4% | 94.5 | 92 | |||
| Cutter | 14.7% | 12.7% | 92.3 | 87 | 79 | 121 | 0.303 |
| Changeup | 7.8% | 27.1% | 89.5 | 100 | 131 | 105 | 0.214 |
| Slider | 3.3% | 2.5% | 86.3 | ||||
| Sweeper | 33.3% | 26.2% | 86.1 | 107 | 111 | 61 | 0.275 |
For a while earlier this year, Jack Perkins was working in a flexible high leverage role for the Athletics, converting three saves in April. With all the injuries the A’s have faced, he was stretched out and moved to the starting rotation in June. His deep repertoire lends itself to starting anyway and that’s how he was developed through their farm system. Unfortunately, he hasn’t found much success in the more familiar role; his ERA is 6.82 since the beginning of June and his FIP is not much better at 5.81.
| Pitcher | IP | K% | BB% | HR/FB% | GB% | ERA | FIP |
|---|---|---|---|---|---|---|---|
| J.T. Ginn | 138.1 | 20.90% | 9.80% | 12.20% | 45.50% | 3.71 | 4.37 |
| Logan Gilbert | 160.1 | 26.0% | 6.3% | 12.0% | 37.1% | 3.42 | 3.65 |
| Pitch | Usage vRHB | Usage vLHB | Velocity | Stuff+ | Whiff+ | BIP+ | xwOBA |
|---|---|---|---|---|---|---|---|
| Four-seam | 5.9% | 15.5% | 93.5 | 81 | 101 | 109 | 0.379 |
| Sinker | 53.4% | 25.3% | 93.4 | 108 | 156 | 102 | 0.319 |
| Cutter | 13.6% | 17.9% | 90.3 | 78 | 93 | 119 | 0.428 |
| Changeup | 5.1% | 30.4% | 87.8 | 81 | 113 | 96 | 0.228 |
| Slider | 22.0% | 10.9% | 85.7 | 95 | 99 | 94 | 0.253 |
From a previous series preview:
J.T. Ginn has spent the last few seasons bouncing between the rotation and the bullpen for the A’s. He’s dealt with a number of injuries over the years, stunting his development, but the stuff models really love his sinker-slider combo. He gets a ton of groundballs with those two pitches and can turn to a pretty good changeup to get a whiff if he needs it. Considering the problems the A’s have had developing mid-rotation arms, and Ginn’s penchant for groundball contact, it’s surprising they haven’t given him a longer look in the rotation.
Ginn has been one of the more consistent starters for the Athletics this year. He’s had his ups-and-downs but he’s been healthy and generally reliable. Back in April when he faced the Mariners last, he allowed three runs in 5.1 innings while striking out six.
| Pitcher | IP | K% | BB% | HR/FB% | GB% | ERA | FIP |
|---|---|---|---|---|---|---|---|
| Jeffrey Springs | 123 | 17.9% | 9.1% | 18.2% | 33.8% | 6.37 | 6.28 |
| George Kirby | 152.2 | 20.0% | 5.6% | 10.9% | 43.3% | 4.19 | 3.80 |
| Pitch | Usage vRHB | Usage vLHB | Velocity | Stuff+ | Whiff+ | BIP+ | xwOBA |
|---|---|---|---|---|---|---|---|
| Four-seam | 43.3% | 45.1% | 91.4 | 89 | 74 | 92 | 0.362 |
| Cutter | 3.2% | 0.5% | 87.8 | 92 | |||
| Changeup | 32.0% | 3.8% | 79.5 | 111 | 117 | 84 | 0.269 |
| Slider | 16.6% | 42.9% | 84.1 | 97 | 70 | 66 | 0.384 |
| Sweeper | 5.0% | 7.6% | 77.3 | 97 | 21 | 116 | 0.409 |
From a previous series preview:
Jeffrey Springs has managed to survive pitching in Sutter Health Park by generating a ton of weak contact. His .255 BABIP was the ninth lowest among qualified pitchers last year and it’s even lower this season. He allows a ton of contact in the air and all that elevated contact hasn’t turned into damage like you might expect. It’s mostly just weak fly balls that are easily caught. He’s also throwing a little harder this season, though his strikeout-to-walk ratio is almost an exact mirror of what he posted last year. His best pitch is still his changeup and that’s what allows him to run a slightly reverse platoon split.
After a decent start to the season, Springs has been absolutely terrible over the last three months; since the beginning of June, his ERA is over nine! The last time he faced the Mariners, he allowed five runs in five innings while striking out seven.
| Pitcher | IP | K% | BB% | HR/FB% | GB% | ERA | FIP |
|---|---|---|---|---|---|---|---|
| Gage Jump | 92.2 | 24.3% | 11.1% | 9.8% | 38.1% | 5.15 | 3.91 |
| Bryan Woo | 148.1 | 24.6% | 5.1% | 10.0% | 36.8% | 4.25 | 3.43 |
| Pitch | Usage vRHB | Usage vLHB | Velocity | Stuff+ | Whiff+ | BIP+ | xwOBA |
|---|---|---|---|---|---|---|---|
| Four-seam | 47.8% | 42.2% | 96.2 | 101 | 103 | 97 | 0.355 |
| Sinker | 3.6% | 9.8% | 95.1 | 88 | |||
| Changeup | 12.1% | 0.2% | 87.5 | 94 | 85 | 103 | 0.302 |
| Curveball | 12.8% | 4.4% | 82.3 | 125 | 81 | 91 | 0.249 |
| Slider | 23.0% | 22.7% | 87.2 | 115 | 84 | 86 | 0.313 |
| Sweeper | 0.7% | 20.7% | 83.8 | 115 |
The Athletics top pitching prospect entering the season, Gage Jump made his major league debut at the end of May — against the Mariners no less — and has pitched through an up-and-down rookie campaign. He’s shown flashes of brilliance at times, but he’s also been prone to big blowups that spiral out of control. He’s got three different breaking balls that make up the bulk of his pitch mix with a four-seamer as the foundation and a sinker and changeup to round out the repertoire. His low arm angle helps his fastball play up from an already impressive 96 mph from the left side, giving the pitch excellent movement across both planes. Right now, he’s much more of a thrower than a pitcher, filling the middle of the zone with his hard stuff and spraying his secondaries around the edges of the zone. That lack of command is the one thing holding him back from truly bringing the entire package together.
The Big Picture:
| Team | W-L | W% | Games Behind | Run Diff | Recent Form |
|---|---|---|---|---|---|
| Astros | 71-69 | 0.507 | — | -42 | L-W-W-L-W |
| Rangers | 69-71 | 0.493 | 2.0 | -48 | L-W-W-W-L |
| Mariners | 66-74 | 0.471 | 5.0 | -65 | L-L-L-W-W |
| Athletics | 54-86 | 0.386 | 17.0 | -194 | L-L-L-L-W |
| Angels | 53-87 | 0.379 | 18.0 | -80 | L-L-W-L-L |
| Team | W-L | W% | Games Behind | Run Diff | Recent Form |
|---|---|---|---|---|---|
| Yankees | 80-60 | 0.571 | +9.5 | +115 | W-W-L-W-W |
| Red Sox | 75-65 | 0.536 | +4.5 | +77 | L-L-W-L-L |
| Guardians | 70-69 | 0.504 | — | -8 | L-L-W-W-L |
| Rangers | 69-71 | 0.493 | 1.5 | -48 | L-W-W-W-L |
| Blue Jays | 69-71 | 0.493 | 1.5 | -44 | W-W-W-L-W |
| Orioles | 69-71 | 0.493 | 1.5 | -20 | W-W-W-L-L |
The Mariners couldn’t gain any ground in the AL West because both the Astros and Rangers matched their record with two wins to start the week. Houston wraps up its four-game set against the White Sox today and then plays the Diamondbacks this weekend. Meanwhile, Texas hosts the Rays for four games.
In the Wild Card race, the M’s gained a half game on the Guardians but still have four other teams to leap frog.













