Start a 9-Ball Career. Difficulty and aiming assist don't matter - I did mine on Easy and Extended, respectively. You have to play through the Qualifiers and get to Round 1 before you can attempt the challenge.
When you get to Round 1, you'll have three challenges in this match. I'm not sure if they change for different players, but my challenges were:
- Bank Shot
- Shot Score: 800
- Combo Shot
Apparently you only need to complete ONE of the three challenges presented. I completed the Shot Score and Combo Shot challenges but not the Bank Shot, and the Acheivement still popped for me.