The second‑round match of the Kinoshita Group Japan Open pits Carlos Alcaraz (ESP) against Matteo Arnaldi (ITA) on the Colosseum court in Tokyo. The contest will begin with the first set tied at 6‑6, forcing a tiebreak to decide the set. The second set will then determine the winner of the match. The players will contest the court under the same conditions that led to the 7‑6(8‑6), 6‑1 result in the final.