Xavier Isaac

20-Year-Old First Baseman1B
Tampa Bay Rays AA
2025 Fantasy Outlook
Isaac looks the part of a franchise first baseman in the making, and his track record of performance is very strong, but a late-season spike in strikeouts has increased his perceived volatility in dynasty leagues. Isaac slashed .310/.395/.579 with 12 home runs, 13 steals and a 27.6 percent strikeout rate in his first 54 games for High-A Bowling Green before missing two weeks with an undisclosed injury. After returning in late June, Isaac slashed .213/.339/.372 with seven home runs, three steals and a 41 percent strikeout rate over the final 53 games of his season, which included 31 games at Double-A after an early-August promotion. He made up for the lost time with a .957 OPS, three homers and a 40.3 percent strikeout rate in 15 Arizona Fall League games. He's a big guy (6-foot-3, 240 pounds), but Isaac happens to be 27-for-30 on stolen-base attempts in 209 games, so he could flirt with double-digit steals early in his big-league career. If Isaac's 2024 strikeout issues quickly start to look like an outlier, he'll surge back up prospect rankings, but if he looks like the same whiff-happy hitter early in 2025, he'll fall outside the top 50. We advise buying low, as Isaac still has a very high ceiling with youth and strong makeup on his side. He turns 21 this offseason and will return to Double-A to start the year. Read Past Outlooks
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