All champions since 2009
By season
Grigor DimitrovDimitrov
Kei NishikoriNishikori
Milos RaonicRaonic
Roger FedererFederer
2014
Lleyton HewittHewitt
2013
Andy MurrayMurray
2012
Andy MurrayMurray
2011
Robin SöderlingSöderling
2010
Andy RoddickRoddick
2009
Radek ŠtěpánekŠtěpánek
Most successful
2
Andy MurrayMurray
2013 2012
1
Grigor DimitrovDimitrov
2024
1
Kei NishikoriNishikori
2019
1
Milos RaonicRaonic
2016
1
Roger FedererFederer
2015
1
Lleyton HewittHewitt
2014
1
Robin SöderlingSöderling
2011
1
Andy RoddickRoddick
2010
1
Radek ŠtěpánekŠtěpánek
2009