Carlos Alcaraz, the 19-year-old from Spain who is seeded No. 6 and a popular pick to win his first Grand Slam trophy, advanced just as cleanly and quickly as expected against “lucky loser” Juan Ignacio Londero, 6-4, 6-2, 6-0 in the day’s last match at Court Philippe Chatrier. Another teen, 18-year-old American Coco Gauff, also moved on, beating Canadian qualifier Rebecca Marino, 7-5, 6-0.