The 30-year-old former Michigan State coach made $144,000 to jump from 30th to fourth on the money list with $281,808 and earn a PGA Tour card as top-25 finisher.
Tied for the third-round lead with Taiwan’s Cheng Tsung Pan, Brehm closed with a bogey for a 3-under 68 and his first Web.com Tour victory. He finished at 15-under 269 on Pumpkin Ridge’s Witch Hollow course to beat Mark Anderson by a stroke.
Anderson finished with a 68. He also earned a PGA Tour card, making $86,400 to jump from 51st to 16th with $169,499.
The four-event Web.com Tour Finals — offering another 25 PGA Tour cards — starts Sept. 8-11 with the DAP Championship in Beachwood, Ohio. The 25 card-earners from the Web.com Tour regular season will have a chance to improve their status in the Finals.
Wesley Bryan won the money title with $449,392. He won three times this year to earn an in-season promotion to the PGA Tour. Richy Werenski was second at $351,770, and J.J. Spaun third at $350,832.
Joel Dahmen took the 25th and final card with $150,267, edging Xander Schauffele by $975. Dahmen missed the cut, and Schauffele tied for 38th.
Brehm, Anderson and Rick Lamb moved into the top 25 in the finale, while Kevin Tway, Stephan Jaeger and Andrew Svoboda dropped out after missing the cut. Lamb tied for 19th to move from 27th to 24th.
Zack Fischer was third Sunday at 13 under after a 68. He finished 46th on the money list.
Pan had a 71 to tie for fourth at 12 under, and finish 11th on the money list.
Zack Fischer (68), Reid Edstrom (69), Chris Baker (69), Rhein Gibson (69), Ted Potter Jr. (70), Jack Maguire (70) and Kyoung-Hoon Lee (70) also finished at 12 under. They all failed to break into the top 25.