Here is the full list of all 19 Divine Knockout (DKO) achievements.
Achieve 'Air-Time'
Achieve 'Practice Makes Perfect'
Achieve 'Triple KOs Silver'
Achieve 'Triple KOs Gold'
Achieve 'The Penta-Ultimate'
Achieve 'Victorious Gold'
Achieve 'Rebound'
Achieve 'Double KOs Gold'
Achieve 'KO Collection Silver'
Achieve 'KO Collection Gold'
Achieve 'Damage Dealer Silver'
Achieve 'Damage Dealer Gold'
Achieve 'Victorious Silver'
Achieve 'Destructive'
Achieve 'Traveler’s Tall Tale'
Achieve 'Divine Knock Out!'
Achieve 'PvE'd'
Achieve 'Double KOs Silver'
Achieve 'Resilient'