Beijing Olympian Mai Nakagawa won the women's platform event to capture her fourth title at the Diving National Championships on Saturday.
Nakagawa, 11th last summer in Beijing, clinched victory with 341.00 points at Tokyo Tatsumi International Swimming Center, while Kazuki Murakami completed a double in the men's 3-meter springboard competition.
Murakami added to the synchronized crown he won with partner Sho Sakai on Friday by taking top honors in the with 436.35.