Premise: Big Four (tennis) . These players are considered dominant in terms of ranking and tournament victories , including Grand Slam tournaments and ATP Masters 1000 events , as well as the ATP World Tour Finals and Olympic Games , dominating the sport amongst them from 2004 onwards . Novak Djokovic . Djokovic has won an all-time record of 30 Masters 1000 series titles , tied with Rafael Nadal . Djokovic 's records include breaking the single-season record with six masters titles in 2015 , winning 31 consecutive ATP World Tour Masters 1000 series matches , playing in the finals at all nine ATP Masters 1000 tournaments ( shared with Roger Federer and Nadal , and being the only player to win eight of the nine events ( and at least twice ) .
Hypothesis: Novak Djokovic won in the finals at all nine ATP Masters 10000 tournaments.
Label: CONTRADICTION