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