15-minute Numbers

Japan

Rank	Competitor	Country	Score	IAM level	Competition
1	NAOKI MIWA	Japan	968	23	East Asia Open 2025
2	MOTORO OHNO	Japan	520	14	Australian Open Memory Championship 2018
3	NAOYA HIRATA	Japan	512	13	Japan Open 2026
4	YOSHIHIRO IKEDA	Japan	482	13	Japan Open Memory Championship 2015
5	YUZUKI TAKAOKA	Japan	450	12	Japan Open 2025
6	TOMOYUKI SASAYA	Japan	440	12	Japan Open 2025
7	KAREN ISHII	Japan	428	11	East Asia Open 2025
7	YASUHIRA YAMAGUCHI	Japan	428	11	East Asia Open 2025
9	TAKERU AOKI	Japan	392	10	Australian Open Memory Championship 2018
10	SAYAKA HOKAZONO	Japan	388	10	Japan Open 2025
11	KEN KOHAGIZAWA	Japan	332	9	Japan Open 2025
12	KENJI TAKAGI	Japan	320	9	Japan Open Memory Championship 2018
12	AKIRA OKUNU	Japan	320	9	Japan Open Memory Championship 2019
14	YU SUGAYA	Japan	312	8	Japan Open 2026
15	MEGUMI MORIKAWA	Japan	310	8	East Asia Open 2025
16	MIE SAKATA	Japan	300	8	Japan Open 2026
17	MASASHI FUJITA	Japan	290	8	Japan Open 2025
18	RIZU TAKAOKA	Japan	284	8	Japan Open 2025
19	REIKO TAKAHASHI	Japan	280	8	Japan Open 2025
20	ETSUKO NOGAMI	Japan	260	7	East Asia Open 2025
20	KAMICHO HIROKAZU	Japan	260	7	Japan Open Memory Championship 2018
22	KIYOHIRO MURAI	Japan	242	7	Japan Open Memory Championship 2017
23	FUMIKO RENAUDY NEMOTO	Japan	240	7	French Open Memory Championship 2021
23	HAYATO ISEKI	Japan	240	7	East Asia Open 2025
23	JUN TAKEDA	Japan	240	7	Japan Open 2025
26	YUKI SAKAKI	Japan	236	6	Japan Open 2026
27	EMI MABUCHI	Japan	222	6	Japan Open 2026
28	AYUMI OSAGAWA	Japan	220	6	Japan Open 2025
29	KAORI ARAI	Japan	208	6	Japan Open 2025
29	RYO KOBAYASHI	Japan	208	6	Japan Open Memory Championship 2019
31	KONOMI NAKAHARA	Japan	200	6	Australian Open Memory Championship 2018
32	YUSUKE SUZUKI	Japan	180	5	Japan Open Memory Championship 2018
33	NAKAGAWA TAKASHI	Japan	174	5	Japan Open Memory Championship 2017
34	SHOHEI HARA	Japan	168	5	Japan Open Memory Championship 2019
35	HIROSHI ABE	Japan	160	5	Singapore Open Memory Championship 2017
35	YUSUKE NAITO	Japan	160	5	Japan Open Memory Championship 2019
35	TAKAFUMI SAKAKIBARA	Japan	160	5	Japan Open Memory Championship 2019
38	KAZUHIRO TOKUDA	Japan	148	4	Japan Open 2025
39	KEIKO KAWASHIMA	Japan	140	4	Japan Open 2025
40	ASUKA OHASHI	Japan	132	4	Hong Kong Open Memory Championship 2013
41	TAKAHIKO MATSUO	Japan	120	3	Japan Open Memory Championship 2016
42	RYOHTO SAWADA	Japan	114	3	Japan Open Memory Championship 2014
43	KEIZO NAKAGAWA	Japan	110	3	Japan Open Memory Championship 2016
44	NAOKO YAZAWA	Japan	104	3	Japan Open 2025
45	MIONO NAMATAME	Japan	100	3	Japan Open 2026
46	HIROMITSU HISHIDA	Japan	90	2	Japan Open Memory Championship 2019
47	MASAYUKI WADA	Japan	88	2	Japan Open Memory Championship 2018
48	KAORI TSUJIKUBO	Japan	84	2	Japan Open Memory Championship 2018
48	EIKO OHARA	Japan	84	2	Japan Open Memory Championship 2018
50	MARIKA NISHIGUCHI	Japan	80	2	Japan Open Memory Championship 2016
50	SHUNSUKE HOSOI	Japan	80	2	Japan Open Memory Championship 2018
50	TOMOYA KUBO	Japan	80	2	Japan Open Memory Championship 2018
50	YUTA TSUTSUMI	Japan	80	2	Japan Open Memory Championship 2016
50	TOMOYUKI NAKATA	Japan	80	2	Hong Kong Open Memory Championship 2013
55	MOTOYUKI KUMAKI	Japan	60	1	Japan Open Memory Championship 2018
55	REINE TSUJIKUBO	Japan	60	1	Japan Open Memory Championship 2018
57	RINNE TSUJIKUBO	Japan	52	1	Japan Open Memory Championship 2018
58	SAYURI TAKAHASHI	Japan	40	1	Japan Open 2025
58	NORIKAZU TANAKA	Japan	40	1	Japan Open Memory Championship 2019
60	MANA OHARA	Japan	20		Japan Open Memory Championship 2018
61	YASUSHI TAKEMASA	Japan	12		Japan Open 2025
62	HARUMI YAMADA	Japan	0		Japan Open 2025
62	AYUTA TONOMURA	Japan	0		Japan Open Memory Championship 2017
62	KAZUMA TAKAYANAGI	Japan	0		Japan Open Memory Championship 2018
62	HINA OHARA	Japan	0		Japan Open Memory Championship 2018