Has any other grandmaster gone as long undefeated like Capablanca? Between 1916 and 1924, future World Champion J.R. Capablanca, as of 1921, experienced a period of eight years without a single tournament defeat. He was then regarded as one of the world's best defensive players, although he also drew more than other grandmasters of similar stature. Has any grandmaster or world champion since then had an equal or longer record of being undefeated?
From this Chess.com Discussion


  In terms of games played, it would be Tal with 95 games (46 wins, 49 draws) from October 23, 1973 to October 16, 1974. He also has the second longest streak of 84 games (47 wins, 39 draws) from July 1972 to April 1973.
  In terms of time, Capablanca was undefeated for 63 games (40 wins, 23 draws from February 10, 1916 to March 21, 1924.