Marc Marquez set an impressive pace on Day 1 of the 2025 Aragon Grand Prix, leading the opening practice session with a time of 1:46.974, nearly a second faster than his closest rival, brother Alex Marquez. Marquez's strong performance continues his dominance at the Motorland Aragon circuit, where he has frequently excelled, especially in early sessions. Other top performers included Maverick Vinales, who finished third, and Pedro Acosta, both aided by fresh tires. Ducati’s Pecco Bagnaia, the reigning champion, showed promise but struggled with bike handling, ending the session in tenth. Notably, Yamaha’s Fabio Quartararo faced rear grip issues, ending up 18th and likely needing to go through Q1 in qualifying. Marquez’s commanding lap extended his lead to over 0.7 seconds ahead of Alex Marquez, with KTM’s Vinales and Acosta also impressing, indicating a competitive field for Saturday’s qualifying. The session highlighted Marquez’s skill and consistency, setting the stage for an exciting race weekend.