Dustin Johnson secured a bookend victory with a superb back nine at the WGC-HSBC Champions in Shanghai this week to complement his 2013-opening win at the Hyundai Tournament of Champions. Of course, Johnson’s fiance Paulina Gretzky—who never misses an opportunity to hop on a jet to an exotic locale and then let everyone know about it via Instagram or Twitter—was on hand for DJ’s $1.4 million payday.

In other news: Halloween. The preferred holiday of the dress-up inclined and college students came and went this past week, and with it many professional golfers took to the social media sphere in costume.

All of the above and more in this edition of “Tweets of the week.”

First, here’s Dustin Johnson’s post-victory tweet. Impressive show of humility from the eight-time PGA Tour winner.

Globetrotting golf writer Stephanie Wei was at the WGC-HSBC Champions and captured this great shot of DJ and Paulina.

Moving on to the Halloween section of our program, Lindsey Vonn tweeted the following amazing/horrifying screenshot (captured from Bleacher Report, it looks like) of the PTI guys in attired as Vonn and boyfriend Tiger Woods for Halloween.

Here’s Golf Boys member Ben Crane going (predictably) all out for Halloween. Well done, sir knight.

Ditto, Webb Simpson and family.

Next, this fabulous item from the most one of the most consistently funny (and frequently crude) golfers on Twitter, David Lynn.

Finally, what would an edition of “Tweets” be without some Dufnering? Luke Donald captured The Duf himself relaxing in a massage chair in his trademarked fashion.