Blackburne was regularly one of the world's top five players from 1871 to 1889, although Steinitz, Emanuel Lasker and, during his brief prime, Johannes Zukertort were clearly better players; and he remained in the top 20 until 1902, when he was 61 years old. His best results were in international tournaments. Although tournaments were much less frequent then than they are now, Blackburne played in nearly one strong tournament per year from 1870 to 1899; in particular he competed regularly in the German Chess Championship, which was an open tournament. In the 1870s and 1880s he was almost always a high prize-winner. His best results were 1st equal with Steinitz at Vienna 1873, where the commentators nicknamed Blackburne "the Black Death" (Steinitz won the play-off); 1st in London 1876 with a score of 10/11, ahead of Zukertort; and 1st in Berlin 1881, 3 points ahead of Zukertort. He also achieved 2nd place in: a strong mini-tournament in London 1872 (behind Steinitz but ahead of Zukertort), George Alcock MacDonnell and De Vere; shared 2nd place at Hamburg 1885 (with Siegbert Tarrasch, James Mason, Berthold Englisch and Max Weiss; behind Isidor Gunsberg; ahead of George Henry Mackenzie and five others); shared 2nd place at Frankfurt 1887 (with Weiss; behind Mackenzie; ahead of Curt von Bardeleben, Tarrasch and several others). His worst result from this 20-year period was 6th place in the very strong Vienna 1882 chess tournament, the one occasion on which all his major rivals placed ahead of him.