{"rewrite":{"id":"r_54be2e2b7e6b4bdcaa5dbd62","clusterId":"c_53735f9ada8d48ff88629416","slug":"sega-net-mahjong-mj-named-official-app-for-2nd-national-high-school-mahjong","model":"deepseek-v4-flash","headline":"Sega Net Mahjong MJ Named Official App for 2nd National High School Mahjong Championship","summary":"Sega announced that its network competitive mahjong game 'Sega NET Mahjong MJ' has been selected as an official app for the 2nd National High School Mahjong Championship, hosted by The Asahi Shimbun. The tournament, established in 2025, targets high school students nationwide and will use both 'MJ' and 'Mahjong Fight Club Sp' for preliminaries.","whyItMatters":"The selection of 'Sega NET Mahjong MJ' as an official app for the second year running cements the game's role in competitive high school mahjong, a tournament that grew out of the professional M.League's popularity.","webCardHtml":"\u003cp\u003eThe 2nd National High School Mahjong Championship will use 'Sega NET Mahjong MJ' alongside 'Mahjong Fight Club Sp' for its preliminary rounds, Sega announced on May 22. The tournament, hosted by The Asahi Shimbun, began in 2025 as the professional M.League drew younger players to competitive mahjong. Last year's inaugural event saw 286 teams from 180 schools compete. This year's preliminaries run from July 5 in Fukuoka through July 20 in Tokyo, with the national tournament set for August 13-15. Part of the semifinals and the finals will stream live on ABEMA Mahjong Channel. The winning team receives an automatic mahjong table from Taiyo Giken. The tournament also plans research with the Kawai Juku Group on mahjong's educational value as an intellectual sport.\u003c/p\u003e","blueskyPost":"Sega NET Mahjong MJ is the official app again for the 2nd National High School Mahjong Championship. Prelims start July 5. Finals stream on ABEMA.","twitterPost":"Sega NET Mahjong MJ returns as an official app for the 2nd National High School Mahjong Championship. Preliminaries run July 5-20, nationals Aug 13-15. Finals on ABEMA.","threadsPost":null,"newsletterBlurb":"Sega's 'Sega NET Mahjong MJ' has been selected as an official app for the 2nd National High School Mahjong Championship. The tournament, hosted by The Asahi Shimbun, runs preliminaries from July 5 and nationals in August, with finals streamed on ABEMA.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/226/G022696/20260522028/\",\"title\":\"\\\"Sega NET Mahjong MJ\\\" Selected as Official App for the 2nd National High School Mahjong Championship\"}]","lintFlagsJson":"[]","lintHits":0,"costUsd":0,"inputTokens":3959,"outputTokens":629,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1779826564,"createdAt":"2026-05-22T09:32:52.000Z","publishedAt":"2026-05-22T09:45:53.000Z","updatedAt":"2026-05-22T09:45:53.000Z"},"cluster":{"id":"c_53735f9ada8d48ff88629416","canonicalTitle":"「セガNET麻雀 MJ」，第2回全国高等学校麻雀選手権大会の公式アプリに決定","representativeArticleId":"a_f9c943a3b24e8499aa6a025e","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"studios\":[],\"people\":[],\"type\":\"announcement\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-05-22T07:19:42.000Z","lastSeenAt":"2026-05-22T07:19:42.000Z","updatedAt":"2026-05-22T09:45:53.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/226/G022696/20260522028/","title":"「セガNET麻雀 MJ」，第2回全国高等学校麻雀選手権大会の公式アプリに決定"}],"entities":{"anime_titles":[],"manga_titles":[],"studios":[],"people":[],"type":"announcement","domain":"games","is_roundup":false},"keyFacts":["Sega announced on May 22 that 'Sega NET Mahjong MJ' is an official app for the 2nd National High School Mahjong Championship.","The tournament is hosted by The Asahi Shimbun and began in 2025.","Last year's inaugural event had 286 teams from 180 schools.","Preliminaries run from July 5 in Fukuoka through July 20 in Tokyo, with the national tournament on August 13-15.","The winning team receives an automatic mahjong table from Taiyo Giken."]}