Symbols
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date
YYYY-MM-DD or YY-MM-DD [ ]
Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point. [...]
Indicates a gap in the listing where title changes are not known. <
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it. @
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom. # Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized .
Country Codes
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Code Country
AFG Afghanistan ALB Albania ALG Algeria AND Andorra ANG Angola ANT Antigua and Barbuda ARG Argentina ARM Armenia ARU Aruba ASA American Samoa AUS Australia AUT Austria AZE Azerbaijan BAH Bahamas BAN Bangladesh BAR Barbados BDI Burundi BEL Belgium BEN Benin BER Bermuda BHU Bhutan BIH Bosnia and Herzegovina BIZ Belize BLR Belarus BOL Bolivia BOT Botswana BRA Brazil BRN Bahrain BRU Brunei BUL Bulgaria BUR Burkina Faso CAF Central African Republic CAM Cambodia CAN Canada CAY Cayman Islands CGO Republic of the Congo CHA Chad CHI Chile CHN China CIV
Côte d'Ivoire (Ivory Coast) CMR Cameroon COD Democratic Republic of the Congo COK Cook Islands COL Colombia COM Comoros CPV Cape Verde CRC Costa Rica CRO Croatia CUB Cuba
CUW
Curaçao
CYP Cyprus CZE Czech Republic DEN Denmark DJI Djibouti DMA Dominica DOM Dominican Republic ECU Ecuador EGY Egypt ERI Eritrea ESA El Salvador ESP Spain EST Estonia ETH Ethiopia FIJ Fiji FIN Finland FRA France FSM Federated States of Micronesia GAB Gabon GAM The Gambia GBR Great Britain GBS Guinea-Bissau GEO Georgia GEQ Equatorial Guinea GER Germany GHA Ghana GRE Greece GRN Grenada GUA Guatemala GUI Guinea GUM Guam GUY Guyana HAI Haiti HKG Hong Kong, China HON Honduras HUN Hungary INA Indonesia IND India IRI Iran IRL Ireland IRQ Iraq ISL Iceland ISR Israel ISV Virgin Islands ITA Italy IVB British Virgin Islands JAM Jamaica JOR Jordan JPN Japan KAZ Kazakhstan KEN Kenya KGZ Kyrgyzstan KIR Kiribati KOR Korea, South KOS Kosovo KSA Saudi Arabia KUW Kuwait LAO Laos LAT Latvia LBA Libya LBN Lebanon LBR Liberia LCA Saint Lucia LES Lesotho LIE Liechtenstein LTU Lithuania LUX Luxembourg MAD Madagascar MAR Morocco MAS Malaysia MAW Malawi MDA Moldova MDV Maldives MEX Mexico MGL Mongolia MHL Marshall Islands MKD North Macedonia MLI Mali MLT Malta MNE Montenegro MON Monaco MOZ Mozambique MRI Mauritius MTN Mauritania MYA Myanmar NAM Namibia NCA Nicaragua NED Netherlands NEP Nepal NGR Nigeria NIG Niger NOR Norway NRU Nauru NZL New Zealand OMA Oman PAK Pakistan PAN Panama PAR Paraguay PER Peru PHI Philippines PLE Palestine PLW Palau PNG Papua New Guinea POL Poland POR Portugal PRK Korea, North (DPR of Korea) PUR Puerto Rico QAT Qatar ROU Romania RSA South Africa RUS Russia RWA Rwanda SAM Samoa SEN Senegal SEY Seychelles SGP Singapore SKN Saint Kitts and Nevis SLE Sierra Leone SLO Slovenia SMR San Marino SOL Solomon Islands SOM Somalia SRB Serbia SRI Sri Lanka SSD South Sudan STP São Tomé and Príncipe SUD Sudan SUI Switzerland SUR Suriname SVK Slovakia SWE Sweden SWZ Swaziland SXM Sint Maarten SYR Syria TAN Tanzania TGA Tonga THA Thailand TJK Tajikistan TKM Turkmenistan TLS East Timor TOG Togo TPE Taiwan (Republic of China) TTO Trinidad and Tobago TUN Tunisia TUR Turkey TUV Tuvalu UAE United Arab Emirates UGA Uganda UKR Ukraine URU Uruguay USA United States UZB Uzbekistan VAN Vanuatu VEN Venezuela VIE Vietnam VIN Saint Vincent and the Grenadines YEM Yemen ZAM Zambia ZIM Zimbabwe
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[62.5kg] (as of 2025-09-07) * 63kg limit until 2018-04.
* Bolded letters in the competitor's name indicate the surname/family name.
Kashihara Ryūji2011-04-30 Tōkyō Thomas Adamandopoulos 2012-08-12 Tōkyō
Yamazaki Hideaki2013-03-20 Tōkyō
Sasaki Daizō2016-06-12 Tōkyō
Konnapar Weerasakreck
2018-04-22
Tōkyō
Kawarada Shuji2021-09-24
Tōkyō
Ōsawa Fumiya2022-04-30 Tōkyō
Satomi Yuzuki2023-06-16
Tōkyō
Itō Kento2024-02-24
Tōkyō
Ōiwa Tatsuya2024-07-27
Tōkyō
