Cameron Percy is another shot back in 46th position while Stuart Appleby is the only other Australian to make the weekend after his second round of 66 allowed him to recover from an opening round of 73 to finish in 55th position.
Curtis Luck, Geoff Ogilvy, Brett Drewitt, Matt Jones and Steven Bowditch have all missed out on weekend play, Luck agonisingly bogeying the final two holes of his second round of 70 to miss by one.
25 year old Rodgers, a standout during his collegiate career at Stanford, has yet to win on the PGA Tour but he did win on the Web.Com Tour in 2015 and although his overall record at the John Deere Classic is not great he did lead the tournament during the third round in 2013 before finishing 15th.
Rodgers leads by two over Bryson DeChambeau with Charles Howell III and course specialist, Zach Johnson, another shot behind DeChambeau.
The field is not only playing for the title this week but the leading player not otherwise already exempt for next week’s Open Championship gets a last minute place in the Royal Birkdale field.
Only seven players currently inside the top 20 this week are exempt into the Open Championship so the outcome could provide yet another player on Sunday’s flight to Liverpool.