At a 10-handed table
You Hold Probability & Odds of Another Player Holding an Overpair
  KK 4.4% 21.8  to 1 against
  QQ 8.6% 10.6  to 1 against
  JJ 12.5% 7.0  to 1 against
  AK* 4.4% 21.9  to 1 against
  AQ** 8.6% 10.6  to 1 against
*  Overpair defined as AA or KK for purposes here
**  Overpair defined as AA, KK or QQ for purposes here
 
  At a 9-handed table
     
  You Hold Probability & Odds of Another Player Holding an Overpair
     
    KK 3.9% 24.6  to 1 against    
    QQ 7.7% 12.0  to 1 against    
    JJ 11.2% 7.9  to 1 against    
    AK* 3.9% 24.8  to 1 against    
    AQ** 7.6% 12.1  to 1 against    
     
  *  Overpair defined as AA or KK for purposes here
  **  Overpair defined as AA, KK or QQ for purposes here
 
  At a 6-handed table
     
  You Hold Probability & Odds of Another Player Holding an Overpair
     
    KK 2.4% 39.9  to 1 against    
    QQ 4.8% 19.7  to 1 against    
    JJ 7.2% 12.9  to 1 against    
    AK* 2.4% 40.1  to 1 against    
    AQ** 4.7% 20.3  to 1 against    
     
  *  Overpair defined as AA or KK for purposes here
  **  Overpair defined as AA, KK or QQ for purposes here
 
  At a 4-handed table
     
  You Hold Probability & Odds of Another Player Holding an Overpair
     
    KK 1.5% 67.1  to 1 against    
    QQ 2.9% 33.2  to 1 against    
    JJ 4.4% 21.9  to 1 against    
    AK* 1.5% 67.2  to 1 against    
    AQ** 2.9% 33.3  to 1 against    
     
  *  Overpair defined as AA or KK for purposes here  
  **  Overpair defined as AA, KK or QQ for purposes here