This can be completed either during a PGA Tour event or in a Play Now Local Match.
(According to What’s a Chundy in the comments below, this will only work for your main accounts, and not for any guest accounts or in-game guests.)
The best option is to create a Play Now Local Match and select the Riviera Country Club course.
Go to New Round Settings and set the Rules to:
Red Tees only (6,005 yards)
Pins Two (turn off One, Three, Four and confirm)
and Round Length to BACK NINE. This is crucial as you'll soon learn.
To make it easier on yourself, you can also choose to go to Conditions and set the Wind Speed to None, the Green Firmness to Very Soft and the Green Speed to Very Soft. Time of Day and Weather matter less, but Morning and Clear are good options too.
Click New Round+ and when the game loads, you'll be standing on the tee box at the 10th hole. I chose this course and hole because there is a greenside bunker guarding the right side and only about 215 yards from the red tee box.
Use your favorite club to aim for the roundest part of that bunker, about 220-224 yards. Try not to get too much closer as you'll find it difficult to get a splash shot less than 15 yards. I typically use a Titleist TS3 4 Hybrid for this tee shot. No wind really helps to get the landing I want in that round part.
For your second shot, you should be around 18-20 yards from the pin. I find it best to aim about 3 yards short and let the roll do the work as opposed to trying to hit right next to the pin. Take your shot. I use a Titleist SM8 54 degree Sand Wedge, but any club you can hit well works. Now here is one of the best parts. If you miss, and you likely will a few times, don't Quit and restart because you'll have to do all the set up again. Instead, put your putter away and take your Lob Wedge and Pitch that ball off the green and RIGHT BACK INTO THE ROUND PART OF THAT BUNKER! Guess what? Its about 20 yards away! Then try to hole out again. And Again. And Again. When I got mine, it was actually my second shot out of that bunker.
If you get to your 11th shot and miss, the game will concede the hole and move you on to the 11th. Now you can quit and try from the start. Once you complete the hole, it might take a while for the achievement to pop. For me, it wasn't until it began loading the 11th hole.
Best of luck.