It was at set to 0.001btc which was around $20 but now with the number of unconfirmed transactions and the price of bitcoin coming down.
I would imagine it will be around $13 now but still at 0.001btc per withdrawal after you use up your weekly one they give to you for free.
and not nitro they send the request and its always depend how the miner will take it, bitcoin value still at low and if converting it to usdt then we will
see that it's no longer 20$ just like what the previous replied mention. Nitro still a good site for sports betting for my owned opinion as I still played
sometimes when my fav team have some good matches.