What is the longest tiebreaker in tennis?
What is the longest tiebreaker in tennis? Roger Federer and Marat Safin played a tiebreaker that lasted 26 minutes in the semifinals of the 2004 Tennis Masters Cup in Houston. Federer won the match 6–3, 7–6. José Acasuso won 20–18 in a deciding set tiebreak against Björn Phau in the 1st round of the 2006 Rogers Masters in Canada.