Energumene won a dramatic running of the Betway Queen Mother Champion Chase for Paul Townend and Willie Mullins - the Irish trainer's 81st Cheltenham victory and first-ever Champion Chase.
The much-anticipated rematch between the Irish star (5-2) and Nicky Henderson’s Shishkin did not materialise as the latter never looked happy and was pulled up.
Mullins’ other contender, Chacun Pour Soi, parted company with his rider and it was Venetia Williams’ Funambule Sivola who came home in second.