Serena Williams to Give Birth to Twins? Oddsmakers Not So Sure

After BetOnline released its Serena Williams baby odds following word that the tennis sensation is now pregnant, the most enticing of the wagers wasn’t whether Serena would give birth to twins (12-1), or even triplets (20-1), but rather the weight of the baby.

Dave Mason of BetOnline tells Gambling911.com that, while the sex of the baby action was balanced, the weight at birth has tipped the scale beyond the original 9 pounds that had been offered at near equal pricing on both the OVER and UNDER.

“The betting public believes we were too high on the baby’s weight,” Mason admitted in reference to the line movement on the UNDER 9 going from -110 to -135 in the past 12 hours.

All odds appear below

The betting public believes Serena's baby won't weight in quite this large apparently

Serena Williams 1st Baby

First Name of Baby

08:00 PM      503        A through M         +120     

504        N through Z         -150      

Serena Williams 1st Baby

Gender of Baby

08:00 PM      501        Male              -115      

502        Female          -115      

Serena Williams 1st Baby

Weight of Baby

08:00 PM      505        Over 9 lbs            +105     

506        Under 9 lbs          -135      

Serena Williams 1st Baby

Will She Have Triplets

08:00 PM      509        Yes         +2000   

510        No          -10000  

Serena Williams 1st Baby

Will She Have Twins

08:00 PM      507        Yes         +1200   

508   No              -2500          

- Jagajeet Chiba, Gambling911.com