I guess you didn't read this :
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Where you send your funds to a specific address and if you win it is being sent back to an address you filled once placing the bet, without the need of withdrawing or creating an account.
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You can see that user is asking for an on-chain sports book which I think Directbet was the only one. I huess also the ones you(@game-protect) mentioned requires account for placing bets.
Alright I get it.
Too sad they closed down, I guess that I am going to use nitrogensports, better odds, but in my opinion harder to bet than on directbet, where you get the withdrawal directly and instantly after your wager is completed.
Make sure you set up 2 factor authentication on your NitrogenSports account. The last thing you want is your balance stolen.
Of course this applies to any site. Make sure you keep a backup of the setup code for 2fa in case you lose your phone.