The men's doubles final at the 2026 Cincinnati Open was decided by a 10–7 match tiebreak in favor of Orlando Luz and Rafael Matos.
Luz and Matos defeated Constantin Frantzen and Robin Haase after the teams split the first two sets. The Brazilian pair won the opening set 6–4, Frantzen and Haase took the second 6–3, and Luz and Matos then prevailed 10–7 in the deciding match tiebreak.
Doubles finals at many major professional tournaments use a match tiebreak instead of a full third set. That is why the result is written as 6–4, 3–6, [10–7], with the bracketed figure identifying the deciding tiebreak rather than a conventional set. The victory also formed part of what the ATP described as a Canada-Cincinnati Masters 1000 “Summer Sweep,” following the pair's success in Canada.