While based in New York he played matches against Zukertort (St Louis 1883), twice against Russia's Mikhail Chigorin (Havana 1889 & 1892), Isidor Gunsberg (New York 1890/91). Finally, there were the two losing matches against Emanuel Lasker, (Philadelphia/New York/Montreal 1894 and Moscow 1896/97). These were all for the world championship. There were also a dozen matches against lesser masters, including four against J.H. Blackburne, the leading English professional.