The Discovery-owned broadcaster previously shared coverage of the US Open with Sky Sports on a non-exclusive basis.
It drew its best week on record with Adult Share of 0.95 (Eurosport 1 & Eurosport 2) in week 35.
The quarter final between Murray and Nishikori has a 1 minute peak audience of 641,000 as Murray made his exit – the highest rating ever seen by the US Open on Eurosport.
The men’s final Djokovic v Wawrinka averaged 141,000, beating the 2015 men’s final which averaged 82,000 on Sky Sports 1 (after being heavily delayed due to rain). It also beat the 2014 final which averaged 95,000 on Sky Sports 3.