Marcelo Mayer Has Altered His Swing Path, and the Red Sox Should Benefit Soon

The Boston Red Sox have scuffled at the plate to begin their season, leading to an ugly 2-7 record after the first three series of action in 2026. Marcelo Mayer was oft-discussed this spring, primarily by manager Alex Cora, who never gave a firm answer as to whether or not the young infielder had a spot on the Opening Day roster.

Evidently, he earned that spot despite not being the starting second baseman on Opening Day. Cora has given him the nod in all but two games this season, and he has appeared in all nine, making improvements in his swing that warrant real confidence moving forward.

While his numbers might not jump off the page, slashing .227/.280/.500 in his first nine games, he has been drilling the ball all over the yard with a 94.8 mph average exit velocity and a 23.1 percent barrel rate. In a small sample, his three doubles rank seventh in the American League, and he sits third on the team in slugging percentage.

What he has done to create those changes in quality of contact is alter his attack angle. Statcast defines Attack Angle as:

"The vertical direction that the sweet spot of the bat is traveling at the moment it hits the baseball... A higher attack angle, assuming the bat makes square contact with the baseball, is more likely to result in a fly ball. A lower or negative attack angle would be more likely to produce a ground ball."

Two of the five players tied for first in average attack angle last season were Eugenio Suárez and Cal Raleigh at 18 degrees, and both ranked top five in fly ball rate as well. The key to hitting is not merely lifting the ball, but doing so consistently and with authority. Mayer has done both.

He has increased his attack angle from seven degrees to ten. The results are already visible: his groundball rate has dropped from 49.4 percent to 38.5 percent, while his fly ball rate has jumped from 33.3 percent all the way to 61.5 percent.

Small samples demand caution, especially with hitters. A three-for-four afternoon can reshape a season line in an instant. That is precisely why the focus here is on approach and mechanical adjustments rather than the slash line. Swing path and batted ball data are the early indicators that foreshadow a player's trajectory, and on both fronts, Mayer is trending in the right direction. His 23.1 percent barrel rate is also worth trusting more than most early-season numbers, as barrel rate stabilizes faster than batting average, meaning the hard contact he's been producing is not just early season noise.

The urgency of that trend is hard to overstate given the state of this offense. Heading into their series finale against the Padres, the Red Sox ranked last in MLB in runs scored with 24, sat 21st in wRC+ at 87, posted the fifth-highest strikeout rate in the league at 28.1 percent, and ranked second-worst in high-leverage situations according to FanGraphs' clutch metric. This lineup desperately needs someone to catch fire.

Mayer is hitting like a man who is due. An early spark from him, a player no one penciled in as a catalyst entering the year, could be exactly what this offense needs to find its footing.