Maggert, 43, is a 17-year veteran from Houston with three victories and three Ryder Cup appearances on his résumé. De Jonge, who turned 27 Wednesday, is a native of Zimbabwe and a rookie on the PGA Tour.
But Brown Deer Park has always been an equal-opportunity golf course. Though neither Maggert nor de Jonge had ever played a tournament round at Brown Deer, they fired 7-under-par 63s on Thursday to share the first-round lead in the 40th annual U.S. Bank Championship in Milwaukee.
"It felt good to finally play a good, solid round," said de Jonge, who has just one top-40 finish this year. "I'll just hopefully keep on doing what I'm doing. Obviously, it worked today."
Both played in the morning, before the wind picked up and put a damper on the birdie-fest. Of the top 10 players on the leader board, only Jay Williamson (65) played in the afternoon.
Maggert and de Jonge held a one-stroke lead over Garrett Willis, who was alone in third after a bogey-free 64. Williamson and Robert Gamez shot 65s and five others were at 66: Jesper Parnevik, Steve Elkington, Tim Herron, Craig Bowden and Tom Johnson.
The group at 67 included Wisconsin natives J.P. Hayes and Mark Wilson.
Defending champion Corey Pavin opened with a 1-under 69.
Read more here from Gary D'Amato's article in today's Milwaukee Journal Sentinel on the USBC Championship in Brown Deer, WI: