You can restore your private keys from the Wagerr.com Sportsbook using these steps
We recommend following the Offline Usage guide at the bottom of the page. The source code and HTML can both be downloaded from the authors GitHub page:
Enter your 12 word mnemonic code in the BIP39 Mnemonic box
Select WGR from the drop down Coin selection
Select the Bip32 tab under Derivation Path
Input m/0'/0/ in the BIP32 Derivation Path box
View the addresses and private keys in the Derived Address section.