BRADENTON, Fla. -- A new leader sits atop the standings after a whirlwind second-round at The Concession Golf Club helped separate a tight field in the NCAA Division I Men’s Golf Championships.

Southern California used a team round of 285 (-3) to unseat Illinois for the top spot, holding on to a three-stroke lead on Illinois in second place, and a seven-stroke lead on third place Georgia and LSU.

2015 DI MEN'S GOLF CHAMPIONSHIPS
Cavadi: Wild week sees top seeds fall, LSU end streak
Cavadi: LSU perseveres to break 60-year title drought
LSU wins its first national title since 1955 Highlights
Cavadi: Tigers, Trojans have chance for redemption
LSU, USC win semis, move on to champ match
Cavadi: Quarterfinal matches have different feel
Cavadi: Long time coming for SMU's DeChambeau
Eight teams make cut for match play on Day 4
Georgia jumps into lead; 3rd round suspended
Cavadi: Vandy's tears up back nine on Day 3
Cavadi: Garrick puts UCLA back in contention
Southern California takes lead following Day 2
Cavadi: Trojans led by freshmen phenoms
Cavadi: Noles right ship on Day 2 in up-and-down play
Illinois leads the field after Day 1 at tough Concession
Cavadi: Illinois' Detry breaks through on Day 1
Cavadi: Georgia starts strong at Concession G.C.
Cavadi: Fresh faces ready to make impact
Leaderboard | Selections
The Trojans started the day hot off of the 10th tee, knocking out nine birdies and an eagle on the back nine to jump to 4-under-par at the turn. Freshman Sean Crocker carded the eagle, a 45-foot putt on 17, and continued his strong play to the front nine with three birdies to shoot 68 (-4) on the 7,483-yard, par-72 course, moving into a tie for fourth on the individual leaderboard.

“I feel like we all have been playing well,” Crocker said after his round. “We all have had a good tournament here or there, everyone on our team is so excited to be here and so eager. Given the opportunity we have and not being top-ranked or being highly ranked, we just want it a lot.”

Crocker’s 68 was the second-lowest score of the day, yielding only to SMU’s Bryson Dechambeau, who carded a 67 (-5) and moved into the top spot on the individual leaderboard.

Dechambeau came out of the gate quickly, grabbing a birdie on the par-4 second hole, then notching an eagle on the third. The Mustangs’ ace bogeyed just two holes and birdied five, rolling through the course and taking a two-stroke lead on Illinois’ Thomas Detry with a two-day total of 137 (-7).

After a Friday which saw 10 strokes separate fifth place from 25th, the top teams created a little breathing room Saturday as the top six teams grabbed a three-stroke lead against 7th-place Georgia Tech, and a nine-stroke lead on the three-way tie for 14th. The field will be cut from 30 to 15 following Sunday’s round, with only eight teams surviving to Tuesday.