The 2025 fantasy baseball landscape is shifting as the first month of the MLB season wraps up, with several top prospects making their mark. Agustín Ramírez has emerged as a standout, quickly showcasing his talent after debuting with the Miami Marlins. Nick Kurtz also received a call-up, solidifying the need for fantasy owners to pay attention to rookie performances.

As we approach the Super-2 threshold, expect more exciting promotions. Among the ranked prospects, Roman Anthony and Bubba Chandler are poised to impact fantasy rosters soon. Jacob Misiorowski from the Milwaukee Brewers has been impressive, boasting a low ERA despite some walk issues, while Marcelo Mayer is heating up for the Boston Red Sox, posting extraordinary offensive numbers. Keep an eye on these prospects to optimize your fantasy rosters.