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