(waiting for requirement not met to show up)
NCP-Promotion Royale
Hey there!
The thing here is, your position isn't really considered to be a New Custom Position (ie, most to all combinations of gamerules applied to the standard 4PC board can already be played rated). If you were to make some alterations to the standard 4PC board and then apply the gamerules you'd like, that would fully be considered an NCP (and I fully encourage you doing that!). We really appreciate your effort here, and we look forward to your next submission. 
Games:
https://www.chess.com/4-player-chess?g=7464247-1
https://www.chess.com/4-player-chess?g=7437496
https://www.chess.com/4-player-chess?g=7390007
https://www.chess.com/4-player-chess?g=6130474
https://www.chess.com/4-player-chess?g=6059369
https://www.chess.com/4-player-chess?g=6050159
https://www.chess.com/4-player-chess?g=5607202
https://www.chess.com/4-player-chess?g=5538955
https://www.chess.com/4-player-chess?g=5526079
https://www.chess.com/4-player-chess?g=5487908
https://www.chess.com/4-player-chess?g=5447140
Gamerules: Pawns promote to QRBN at 3rd rank; capture the king; deadwall
Time Control: 1|15