The Finals Match up is

HALIBURTON4MVP VS KUMINGATHEBEST!

3rd place is

JAGSANDPELS VS CADENMANGOLD!

The challenge is

Make 5 trades and trade, Coby White, Kyle Kuzma, Evan Mobley, Pascal Siakam and Jalen Duran in those trades!

This is the match-up for both Finals and 3rd place match-up.

Also, hasn't KumingaTheBest won like every Community Challenge in recent history except for the one he run himself?