The 2023 MLB trade deadline saw a seller's market, with teams like the Diamondbacks and Twins receiving strong prospect returns. Contending teams also made impactful moves; the Mariners acquired Eugenio Suárez and Josh Naylor, while the Padres added pitching and hitting depth. Grades were assigned based on team improvement, with the Mariners and Padres receiving high marks for addressing key needs. Other teams, like the White Sox, received lower grades for inactivity or insufficient returns. The deadline showcased both strategic rebuilding and aggressive contention.

Prepared by Emily Rhodes and reviewed by editorial team.