Xavier Isaac

Xavier Isaac

20-Year-Old First Baseman1B
Tampa Bay Rays
2024 Fantasy Outlook
Isaac is a rare premium first base prospect. Most of the best fantasy first basemen were underrated as prospects (Paul Goldschmidt, Pete Alonso) or came up at other positions (Bryce Harper, Vladimir Guerrero), but the Rays selected Isaac out of high school with the No. 29 overall pick in 2022 knowing full well he'd be splitting time between first base and designated hitter. The 6-foot-4, 240-pound lefty slugger has huge raw power, but he didn't sell out for it in his first full pro season, logging a 21 percent strikeout rate at Single-A and at High-A. His walk rate was eerily consistent as well, (15% at Single-A, 14% at High-A). Anyone who doubted Isaac's game power got a swift lesson at the end of the year after he hit six home runs in 12 High-A games en route to a .490 ISO in that brief run as a 19-year-old. Isaac could be big-league ready in a year or two, and the main question is whether he will be platooned at the highest level. He had a .976 OPS and 20.1 K% in 339 plate appearances against righties and a .697 OPS and 25.5 K% in 94 plate appearances against southpaws. Read Past Outlooks
RANKSFrom Preseason
$Signed a contract with the Rays in July of 2022.
Two homers in Spring Breakout game
1BTampa Bay Rays  A+
March 17, 2024
Isaac hit two home runs in Saturday's Spring Breakout game, an 8-8 tie against Minnesota, despite being limited to DH this spring due to a sore ankle, MLB.com reports. His second home run had an exit velocity of 110.4 mph.
ANALYSIS
It doesn't sound like an injury to be worried about for the regular season. The 6-foot-4, 240-pound lefty slugger has huge raw power, but he didn't sell out for it in his first full pro season, logging a 21 percent strikeout rate at Single-A and at High-A. He hit 19 home runs with a .916 OPS between the two levels. Isaac could be big-league ready in a year or two, and the main question is whether he will be platooned at the highest level since he had a .697 OPS in 94 plate appearances against southpaws.
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2023 Fantasy Outlook
Isaac wasn't high on many public draft boards, as he is a first base-only prep hitter who missed the 2021 showcase circuit due to a fractured foot. However, he has massive fantasy potential. The Rays shocked draft pundits by selecting Isaac with the 29th overall pick and giving him full slot money. The 6-foot-4, 240-pound lefty masher has as much raw power as any hitter in the class, which is saying something, and the Rays were probably more bullish on his hit tool than any other club. Isaac is a hard worker who is intent on proving the doubters wrong. He will head to Single-A for his first full season. The pressure will always be on him to hit, given his size and limited defensive value. But Isaac has the upside to be one of the best run producers in the game.
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Mashes first High-A homer
1BTampa Bay Rays  A+
August 24, 2023
Isaac, who was promoted to High-A Bowling Green on Tuesday, hit his first home run at that level Thursday against Winston-Salem.
ANALYSIS
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Mashing righties
1BTampa Bay Rays  A+
July 11, 2023
Isaac is slashing .296/.372/.522 with four home runs, three steals and a 26:14 K:BB in 29 games since June 1 for Single-A Charleston.
ANALYSIS
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Dialed in for RiverDogs
1BTampa Bay Rays  A+
June 1, 2023
Isaac slashed .289/.449/.605 with three home runs and five strikeouts in 12 May games for Single-A Charleston.
ANALYSIS
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Drafted by Rays
1BTampa Bay Rays  A+
July 17, 2022
The Rays have selected Isaac with the 29th overall pick in the 2022 first-year player draft.
ANALYSIS
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