Tommy Gainey and Mark Wilson topped the Phoenix Open leaderboard yesterday in Scottsdale, Ariz., reaching 11 under before second-round play was suspended because of darkness in the frost-delayed tournament that will finish Monday.

Gainey played nine holes in the second round, and Wilson finished 14.

Frost delayed play until just after 11 a.m. — 94 minutes after the scheduled start that was already nearly two hours later than normal.

The delays — costing a total of 7 hours, 24 minutes of playing time — pushed more than half of the second round to today.

“In a perfect world, probably finish Monday, maybe four or five holes, best-case scenario,” said Slugger White, the PGA Tour’s vice president of rules. “So much depends on tomorrow morning and Sunday morning. . . . It’s unbelievable how frozen these greens get.”

On the sunny day, the temperature was 42 when play started, reached 52 and was 48 when play was suspended a little after 6 p.m.

Gainey, called “Tommy Two Gloves” because he wears golf gloves on both hands, birdied six of the final eight holes to take the first-round lead at 8-under 63, then had four birdies and a bogey on the first nine holes in the second round.

Wilson opened with a 65 and was 5 under for 14 holes in the second round.

Phil Mickelson, on the leaderboard Thursday after a 67, didn’t start the second round.

WESTWOOD MISSES

QATAR CUT

In Doha, Qatar, Lee Westwood shot a 3-over 75 to miss the cut at the Qatar Masters, opening the door for Martin Kaymer to replace him at the top of the rankings. Austria’s Markus Brier had a 66 to take a one-shot lead over South Africa’s Darren Fichardt (68) after the second round.

Westwood, who finished 4 over, replaced Tiger Woods at the top of the rankings in October. Kaymer could advance to No. 1 with a second-place finish. He shot a 70 and is 10 shots back.