This is new to me, I love what your doing, is it just a way to convince or to discipline your self to lose weight? May I suggest that you bet with you close friends or relatives as I cannot guarantee that anyone here will accept your challenge staking their BTC.
Thank you! I'm trying to combine my weight loss with something I love gambling

Your right, I'm not sure anyone will take my action but it's out there if anyone wants to gamble.
I hope you don't wait for a person to gamble with you and just do it for yourself. As long as you are determined you cannot lose weight without relying from other people to challenge you.