PLAYA DEL CARMEN, Mexico (AP) -- Robert Karlsson and Kevin Stadler topped the OHL Classic leaderboard at 12 under Friday when second-round play was suspended because of darkness.
Karlsson played 36 holes Friday, shooting an 8-under 63 in the rain-delayed first round and adding a 67 in the afternoon on Mayakoba Resort's El Camaleon course.
Stadler had rounds of 67 and 63 in a 34-hole day. He birdied five of the last seven holes in the second round.
Karlsson finished with a birdie on the par-4 18th after making bogeys on 16 and 17. The Swede tied for 10th on Sunday in the McGladrey Classic, playing on a sponsor exemption, to earn a spot in the field this week.
Only 29 of the 127 players were able to complete the second round. After lengthy delays Thursday, there was a 26-minute delay Friday afternoon.
More than 4 1/2 inches of rain has hit the course since Wednesday afternoon. Because of the wet conditions, players were allowed to use preferred lies in the first two rounds.
Rory Sabbatini and Chris Stroud were tied for second at 9 under. Sabbatini had one hole left when play was suspended, and Stroud had three to go.
Ryan Moore, Jhonattan Vegas, Pat Perez and Jay McLuen were 8 under. Moore (67) and Vegas (68) finished the round, and Petez and McLuen each had four holes to play.