Algerine
... that the American Thoroughbred racehorse Algerine won the 1876 Belmont Stakes without winning another race beforehand?
... that the American Thoroughbred racehorse <b id="mwEZU"><a href="./Algerine_(horse)" id="mwEZY" rel="mw:WikiLink" title="Algerine (horse)">Algerine</a></b> won the 1876 <a href="./Belmont_Stakes" id="mwEZc" rel="mw:WikiLink" title="Belmont Stakes">Belmont Stakes</a> without winning another race beforehand?