Chalmers will own his second career 36-hole lead on the Nationwide Tour when the round is completed Saturday morning. That's good news for a player who is just 10 places from No. 25 on the money list -- the last spot to earn a PGA TOUR card for next season.
He had seven birdies in a spotless second round.
'This time of year, the last eight weeks of the season, is when each tournament starts to feel like Q-school,' said Chalmers, who stood at 11-under 133. 'You can't judge the year until it is all said and done. There are still four weeks left and hopefully I can finish strong.'
Jeremy Anderson shot a 5-under 67 and Brian Guetz had a 1-under 71 to pull within a shot of Chalmers at 10-under 134. Brenden Pappas (67) was another shot further back at 9-under 135.
There were 24 players in the clubhouse who were within five shots of Chalmers' lead. Four groups remained on the course when play was suspended just before 7:30 p.m. local time, but none of the players were a real threat to the lead.
The first round wasn't completed until Friday morning after a weather delay Thursday pushed it back considerably and forced the eventual suspension of play.
Anderson nearly claimed his first Nationwide Tour win last week, but was beaten by Richard Johnson in a three-way playoff at the Mark Christopher Charity Classic.
His runner-up finish put him at No. 26 on the money list with just two more events remaining before the Nationwide Tour Championship. It has been a good turnaround for someone who took a week off after injuring his ankle this summer.
'The ankle really responded to treatment and it was good to get off of it for a week,' said Anderson. 'It might have helped me more mentally though. I was able to get refreshed and focus on playing good golf and gaining confidence again.'
Like Chalmers, Guetz is seeking his second career Nationwide Tour win. But unlike Chalmers, he isn't close to cracking the top 25 on the money list.
And with no status on tour, he can earn a spot in next week's Chattanooga Classic with a top-25 finish this weekend.
The round is scheduled to resume Saturday morning at 8:15 a.m. local time.