Josh Naylor Poised to Repeat 2025 Speed Breakout in 2026?
Seattle Mariners first baseman Josh Naylor was one of the first dominoes to fall in free agency this past winter, re-signing with Seattle on a five-year contract in mid-November. Naylor posted an excellent season in 2025 across 604 plate appearances split between the Mariners and Arizona Diamondbacks, slashing .295/.353/.462 with 20 home runs, 92 RBI, 81 runs scored, and 30 stolen bases. The 28-year-old's speed breakout was the most surprising aspect of his profile, as he had logged just 22 combined steals across the three seasons before 2025. 19 of Naylor's stolen bases came in the 54 games he played for Seattle, so the Mariners could be encouraging him to run even more in 2026. With just a 6.6% barrel rate in 2025, Naylor's underlying power metrics suggest that he may not provide surplus fantasy value in the home run category. However, he struck out at just a 13.7% rate last season, and should have an opportunity to collect counting stats given his everyday role in the top-heavy Mariners lineup. RotoBaller currently ranks Naylor as the number eight first baseman in traditional rotisserie scoring fantasy formats.
Source: RotoBaller
Source: RotoBaller
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