2021 U.S. Open Pool Championship
... that all 256 places at the 2021 U.S. Open Pool Championship were filled within 10 hours?
... that all 256 places at the <b id="mwhQ"><a href="./2021_U.S._Open_Pool_Championship" id="mwhg" rel="mw:WikiLink" title="2021 U.S. Open Pool Championship">2021 U.S. Open Pool Championship</a></b> were filled within 10 hours?