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title: 有明と東日本国際大昌平、春夏を通じた初出場校が1大会2勝以上を ...
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# 有明と東日本国際大昌平、春夏を通じた初出場校が1大会2勝以上を ...

## TL;DR
（要約なし・原文はリンク先を参照 / No summary available; see the source link.）

## Key Points
- world / Yahoo!ニュース

## Details
(本文なし。リンク先参照)

## Source
元記事: [有明と東日本国際大昌平、春夏を通じた初出場校が1大会2勝以上を ...](https://news.yahoo.co.jp/articles/f8fb5097bc6c9559237b9f6a519bd93c6465aa90) — published 2026-08-13T02:01:00Z