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]]>Plus: Track 40-man roster protection decisions, recent trends & top 40 dynasty first basemen. 
Today, we’re unveiling the 10 best prospects in the Diamondbacks system entering 2026.
The top of the D-backs system is headlined by Ryan Waldschmidt, a well-rounded outfielder whose strong first full season in 2025 has him primed to make his big league debut sooner rather than later.
Baseball America correspondent Nick Piecoro is hosting a chat at 1 p.m. ET to discuss Waldschmidt and the overall state of Arizona’s farm system.
Projected 2029 D-backs Lineup
Listed below are the prospects with the best tools within the organization. To go directly to Arizona’s Top 10, click here.
D-backs Best Tools
40-man Roster Analysis: Baseball America tracks every player added to 40-man MLB rosters before Tuesday’s 6 p.m. deadline in advance of next month’s Rule 5 Draft. Read more…
What Will Teams Prioritize? Ian Cundall highlights recent trends to assess how teams approach Tuesday’s 40-man roster deadline and December’s Rule 5 draft. Read more…
Top 40 Dynasty 1B: Dynasty rankings for the game’s top 40 first basemen, led by the Athletics’ Nick Kurtz. Read more…