Ruiz/Rubio project as the more stable, higher-ceiling pair in Buenos Aires P1 conditions, with Ruiz’s ability to control the left side and Rubio’s finishing giving them clearer paths to hold and pressure. Garcia/Jimenez can compete if they speed up exchanges and win the first two volleys, but over a full match they’re more reliant on hot streaks and low error rates. Prediction: Ruiz/Rubio in 2 sets, with a likely tight opening set decided by break-point efficiency.