In 10 games since April 24, he's hit .361 (13-for-36) with three doubles, three home runs and 10 RBIs, with an impressive .694 slugging percentage and a 1.073 OPS.
Those are big-time numbers and much needed for the Mariners offense. Manager Eric Wedge said Seager answered his offseason challenge and is benefiting now.
"He was one of those nine guys we really challenged to do some things in the offseason and I could tell early on in Spring Training, just the way the ball was coming off his bat was different than last year," Wedge said. "He's brought that into the season.
"You know I don't like players being in-between," said Wedge. "He's not afraid to swing and miss and take some chances. He can turn around a good fastball, he puts up a tough at-bat and sticks his nose in there. There's a lot to like there."
At 6-foot, 195 pounds, Seager isn't built like a power hitter. But he's an excellent line-drive hitter. His 21 doubles over the past 57 games dating back to last season are second most in the Majors behind Joey Votto's 22, tied with Robinson Cano, James Loney, David Ortiz and Marco Scutaro.
And he's showed increasing strength and the ability to drive the ball over the wall with three home runs in the past four games, going into Sunday's series finale with the Twins.
"He has a great swing," Wedge said when asked where the power comes from. "He always has. That's why he's always been a hitter. Now with a little more strength and being a little more crisp to the baseball, that's what you're seeing."