Jenny Rosenberg set the record for the lowest score at a Nassau girls golf championship last year.

Her encore performance was even more impressive.

The Cold Spring Harbor senior shot a 143 over two days and 36 holes at Bethpage State Park to win her second consecutive Nassau individual golf title, breaking her own record in the process. Rosenberg shot a 1-under 70 at Bethpage Yellow on Monday and followed with a 2-over 73 on Tuesday at Bethpage Green. She shot a 144 to win the tournament last season.

“I really wanted to beat my record from last year,” Rosenberg said. “I’m proud of myself and I’m happy with how I played.”

Rosenberg’s stellar start to the tournament in spite of heavy rain on Monday set the tone, as she came into Tuesday with an 11-stroke lead over Syosset’s Malini Rudra. Rudra finished second with a 152 after shooting a 73 on Tuesday.

“I exceeded my own expectations with the weather, shooting 1-under,” said Rosenberg, a senior who is headed to Tulane. “I put a lot of pressure on myself, but I really just wanted to do my best with those conditions.”

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After conquering the elements, Rosenberg said on Tuesday she turned her sights to beating her score from last year. “I played an overall good round,” she said. “Now my goal is to try to win states.”

Jericho won the team title after posting an aggregate score of 867, led by sisters Lauren Guo (162) and Emilie Guo (164), as well as Morgan Yi (170). The Jayhawks tied for first last season with Syosset, which came in second this year with a 939.

“I don’t even have words to say how proud I am,” Jericho coach Steve Bromberg said. “They were motivated based on last year. They said they were going to practice harder and do whatever it took and here we are today.”

Manhasset’s Lauren Chen (165), Syosset’s Sarah Sung (171), Friends Academy’s Serena Biondi (177) and Garden City Maroon’s Caroline Munn (180) rounded out the top nine which qualified for the state tournament, which begins on June 2 at Bethpage.