Rivalry
state of two people or groups engaging in a lasting competitive relationship
California–Texas rivalry
Portugal–France football rivalry
Bone Wars
Lee-Lin rivalry
Cologne–Düsseldorf rivalry
Agassi–Sampras rivalry
Battle of Jutland
Lendl–McEnroe rivalry
Williams sisters rivalry
Connors–McEnroe rivalry
competition
Capetian-Plantagenet rivalry
Battle of the Brians
hip hop rivalry
Chuck Liddell vs. Tito Ortiz
college rivalry
Federer–Roddick rivalry
Frankie Edgar vs. Gray Maynard
Graf–Sabatini rivalry
interservice rivalry
Borg–McEnroe rivalry
sport rivalry
Leibniz–Newton calculus controversy
competition