What would be the most athletically superior race to reproduce with?

I am a Caucasian male with average physical genetics. I want my kid to be the next mike Tyson when he grows up. I’m gonna make him start sparring at 3 years old and he’ll be knocking out grown men by 8 years old. What would be the best race for me to mix with to achieve the best athletic results?
Answers

Randy

You should have hooked up with one of these Williams girls. Serena or Vanessa.

Para

Easy to be God after oppertunity knocks. Imp the weaker kids. With no reaper cushions cash.