Some keepers have successfully hatched eggs found in enclosures with lone wild caught females, but I've yet to hear af anyone having success in breeding these guys. Courtship is typically a very violent affair, and most aren't willing to risk serious injuries and/or death to their adults just for a shot at a single egg clutch. This is a species which probably requires alot more study in the wild before we see any measure of success in captive breeding programs. I would be interested to know if Batagur has ever observed mating behaviours in captive Platysternon?
It is very well known that Julie Tougas in Canada has had repeated success with Bigheads.