Heading into the New Year, here’s a breakdown of 10 Rockies prospects — five of whom raised their stock with strong performances in 2025, and five of whom have the most to prove heading into 2026. This list only includes prospects who have yet to debut or those who have still retained their rookie eligibility going into this coming season.
LHP Welinton Herrera — Colorado added Herrera to the 40-man in November to protect him from the Rule 5 Draft.