Janowski vs Mason, 1894  (C67) Ruy Lopez, 55 moves, 1-0 Janowski vs Mason, 1895   (C42) Petrov Defense, 54 moves, 1/2-1/2 Mason vs Janowski, 1899  (D31) Queen's Gambit Declined, 49 moves, 1-0 Janowski vs Mason, 1899  (C49) Four Knights, 75 moves, 0-1 Janowski vs Mason, 1900  (A84) Dutch, 46 moves, 1/2-1/2 Mason vs Janowski, 1900  (C50) Giuoco Piano, 52 moves, 0-1 Mason vs Janowski, 1901  (C50) Giuoco Piano, 48 moves, 1-0 Mason vs Janowski, 1902  (C78) Ruy Lopez, 65 moves, 1-0 Janowski vs Mason, 1902  (A84) Dutch, 60 moves, 0-1 9 games