A's Spring Training 2026 Recap: What We Learned and What to Expect

Six Weeks in the Desert Tell You Something

Spring training statistics do not tell the whole story. Everyone knows this. Pitchers are working on specific things, hitters are experimenting with their approach, and the competitive intensity is nothing like a late-September pennant race. But six weeks of watching players every day in practice and game conditions does reveal genuine information about who is ready, who is not, and which storylines will define the regular season.

The A's 2026 spring camp in Mesa, Arizona gave us a few clear answers and several questions that will not be resolved until real games start counting.

The Starting Rotation Looks Like a Real Asset

JP Sears was excellent in camp. Not vintage-Sears excellent, where you worry about sustainability, but consistent and controlled in a way that suggests he has taken another step forward. His changeup command improved noticeably from last September. The pitch has always been his best weapon but inconsistent command undermined it; this spring he was locating it to both sides of the plate against both righties and lefties. That is a legitimately good development.

Luis Medina was the big story. He had three starts that looked like what everyone has been waiting for -- sub-3.00 ERA stuff, strikeouts in bunches, and just enough walk control to keep baserunners from piling up. Then he had one start that looked like the old Luis Medina. The variance is still there. But the good version of Medina appeared more frequently this camp than in any previous spring, and that is meaningful.

The back of the rotation resolved itself through attrition as much as merit. Joey Estes, Hogan Harris, and Brady Basso all showed enough to earn consideration. The staff went into the final roster decisions with a legitimate competition, which is a better problem to have than falling back on whoever is left standing.

Mason Miller Is Healthy and He Is Scary

The closer's health is always the biggest variable in bullpen planning, and Miller's health history makes it doubly important for the A's. This spring, he looked fully right. The fastball was at 100 to 101 mph consistently. The slider was biting at the corners. He struck out 11 batters in six spring innings without walking anyone, which is not a number that happens by accident.

If Miller stays healthy for the first half, the back end of the bullpen becomes a genuine weapon rather than a liability. That possibility alone is reason for optimism about the 2026 season.

Brent Rooker Is Ready for a Contract Year

Rooker enters the final year before free agency, and he looked like a man who knows exactly what the stakes are. He hit .340 in spring games with four home runs and only 11 strikeouts in 47 at-bats, which suggests his contact rate may genuinely be improving beyond his career norms. Whether that holds up in regular season conditions is the question, but he came to camp in shape, locked in, and visibly motivated.

A big year from Rooker creates a difficult decision for the front office in November. He is the kind of player worth extending if the price is reasonable. He is also the kind of player you trade at the deadline if the offers are strong and you are not in playoff position. Watch the standings in July and August for signals about which path the organization is leaning toward.

Lawrence Butler Takes a Real Step Forward

Butler's spring was the most encouraging development for the long-term outlook. He hit consistently to all fields, showed improved pitch recognition on offspeed pitches, and played center field with the kind of confidence you want to see from a player who is being asked to be a cornerstone. The plate discipline metrics showed walks up and chases down, which is exactly the development track you want from a young player entering his prime.

Questions Heading Into April

Catching remains a concern. The A's catchers had an average spring with the bat and the framing numbers from the early tracking data were not impressive. This is the position where the team can least afford to be below average, given that the catching market now values framing and game-calling at premium levels.

The bench is thin. The A's are carrying versatile players who can play multiple positions, which is good roster construction strategy, but the gap in quality between the starters and the bench is larger than you want heading into a 162-game season where injuries are inevitable.

Overall verdict: this is a team that could win 78 to 85 games in 2026 if the rotation holds and the offense develops as the optimistic projections suggest. That is a meaningful improvement from recent seasons and the beginning of something Las Vegas fans can actually watch with anticipation.