Athletics' Pitchers Fantasy Baseball Preview | Mason Miller, Luis Severino, Jeffrey Springs, JP Sears, Osvaldo Bido, Gunnar Hoglund and More

Let's continue our fantasy baseball team preview of the Athletics by looking at the team's pitchers. We looked at the team's hitters in another story.

We've covered the Pittsburgh Pirates (hitters and pitchers), Seattle Mariners (hitters and pitchers), Colorado Rockies (hitters and pitchers), Tampa Bay Rays (hitters and pitchers), Atlanta Braves (hitters and pitchers) and Chicago White Sox (hitters and pitchers) already.

Check out Fantasy Baseball Average Draft Position data for 2025 and get ready for your fantasy drafts by utilizing the FantasySP Fantasy Baseball Mock Draft Simulator. Also be sure to check out the FantasySP 2025 Fantasy Baseball Draft Kit!

Top Fantasy Pitchers

The Athletics have just one fantasy pitcher on the Average Draft position list so far, and it's closer Mason Miller.

Miller has an average pick mark of 67.29 so far. He was the team's top-scoring fantasy pitcher in 2025, even if you add in some of the team's offseason additions.

In his first full season as a reliever, Miller was an absolute stud. In 55 games pitched, Miller went 2-2 with a 2.49 earned run average. He earned 28 saves and struck out 104 batters over 65 innings.

Miller is a great fantasy closer, even though he's on a team that isn't likely to do a whole lot of winning. The Athletics like to use him to multiple outs, and Miller went over an inning pitched in 14 appearances last season. That, along with his insane strikeout numbers, give Miller some great fantasy upside.

I think Miller's fantasy outlook is even better this season. He missed time last season after breaking his fifth metacarpal, and as long as he stays healthy, I'd expect him to eat more innings in 2025. That means more innings and, more importantly, strikeouts.

Miller is a good pick around his ADP and should challenge for a top-five fantasy closer spot this season.

Other Starting Options

After just covering the team's closer, we have a lot of pitchers in this section. According to FanGraphs, here is how things could look, at least to start the season.

Luis Severino, Jeffrey Springs, JP Sears, Osvaldo Bido and Mitch Spence are projected to fill out the starting rotation. Luis Medina and Ken Waldichuk are two injured starters - Medina is likely going to miss the entire season, while Waldichuk is expected to return in June.

Jose Leclerc and Tyler Ferguson are the projected setup men for Miller. Michel Otanez, Dylan Floro, T.J. McFarland and Grant Holman are the other projected bullpen arms, while Noah Murdock is the projected long reliever after being a rule 5 draft pick. Michael Kelly is suspended, and could return in June as well.

Not many projected bullpen arms are likely to be big fantasy assets, especially on a bad team like the Athletics. Leclerc and Ferguson could get a fantasy boost if Miller misses any time. 

Severino is likely just off the ADP list, and Springs probably is pretty close to him.

Severino signed with the Athletics this offseason and is expected to be the team's No. 1 starter. In 31 starts with the Mets last season, Severino had an 11-7 record and 3.91 ERA. He struck out 161 batters over 182 innings.

By joining the Athletics, there's a chance Severino performs worse with his win-loss record, even if he sticks around the same ERA. He can eat innings though and record enough strikeouts to provide some fantasy value. He's a better deep-league option to begin the season, but could be a standard league streamer all season (depending on the matchup he has).

Springs has only made 10 starts over the past two seasons with the Rays, but he posted great numbers in those starts, and has good numbers for his career.

In 145 games and 37 starts over his career (35 starts from 2022-24), Springs has a 23-12 record and 3.39 ERA. He has 359 strikeouts over 313 2/3 innings.

Again, joining the Athletics isn't a great thing for a fantasy pitcher, but Springs could still be a standard league streaming option all season. If he's able to stick around his career ERA, he probably would actually be a better standard league keeper.

Sears has been in the team's rotation full time over the past two seasons. In 32 starts last season, Sears went 11-13. He had a 4.38 ERA and 137 strikeouts over 180 2/3 innings.

He's a decent deep-league option because of the innings he can eat, but a lack of strikeouts and a so-so ERA keeps him from being a standard league option outside streaming him in the most favorable matchups.

Bido spent the 2024 season with the Athletics after making his MLB debut in 2023 with the Pirates. In 16 games and nine starts last season, Bido went 5-3 with a 3.41 ERA. He struck out 63 batters over 63 1/3 innings.

Those look like decent numbers, but are a small sample size. He's a player to keep an eye on in case he picks up where he left off. Bido will need to stick in the rotation to be a fantasy asset, and he's likely to top out as a deep-league keeper.

Spence made his MLB debut in 2024, pitching in 35 games and making 24 starts. He went 8-10 with a 4.58 ERA and 126 punchouts over 151 1/3 innings.

If he can stick in the rotation, Spence has deep-league keeper value. Less strikeouts than innings pitched doesn't make him a great asset though, and the higher ERA is another negative working against him.

Medina might be worth a late-season pickup in deeper leagues if he's able to pitch at all, but I'd guess the Athletics will take things cautiously and not pitch him until 2026. 

Waldichuk hasn't pitched since 2023. In 42 games and 29 starts in his career, Waldichuk has a 5.28 ERA, 6-11 record and 132 strikeouts over 141 innings. 

There's a little strikeout upside with him, but a poor ERA is going to keep him out of most fantasy leagues. We'll see how he looks in his return from injury, but I'm not expecting him to be anything more than a deep-league option.

Top Prospects

The Athletics have no pitching prospects in the MLB's top-100 list to start the season.

Gunnar Hoglund, Holman, Brady Basso, J.T. Ginn, Kade Morris and Anthony Maldonado are some of the team's other top-30 prospects from the end of last season who could help out the big league team in 2025.

Hoglund has pitched in parts of three minor league seasons, pitching in 199 2/3 innings so far. He's got a 4.10 ERA and 173 punchouts.

Holman appeared in 18 games in 2025, covering 15 2/3 innings out of the pen. He had a 4.02 ERA and 16 strikeouts. Holman has a much better 3.19 ERA in the minor leagues, so he's worth keeping tabs on in case he gets to that ERA and keeps striking out a batter or so an inning.

Basso made four starts across seven games with the Athletics last season He went 1-1 with a 4.03 ERA and 19 strikeouts over 22 1/3 innings. 

Ginn made six starts across eight MLB games. He went 1-1 with a 4.24 ERA and 29 punchouts across 34 innings.

Morris has a 4.46 ERA across 139 1/3 minor league innings, with 136 of those coming last season. He has 124 strikeouts along the way.

Maldonado made a start across 16 games pitched for the Marlins in 2024. He went 1-1, with a save and 11 strikeouts across 19 innings.

Ryan Cusick, Joey Estes, Mason Barnett, Jack Perkins, Chen Zhong-Ao Zhuang and Pedro Santos are among other pitchers at spring training this season, and who are all 25 years old or younger.