JACKSONVILLE, Florida (AP) ― Lexi Thompson proved she was good enough to play on the LPGA Tour as a 16-year-old when she beat a strong field by five shots two weeks ago. She was granted membership Friday based on more than birdies and bogeys.

LPGA Tour commissioner Mike Whan approved Thompson’s petition to become the LPGA Tour’s youngest member effective in January, impressed with how the Florida teen handled herself in all aspects of tour life.

“I’ve seen her at press conferences,” Whan said. “I’ve seen her when she played well, I’ve seen her when she hasn’t played too well. I’ve seen her at pro-am parties. I’ve seen her when fans are coming up to her when it’s maybe not the best time.” 

Thompson filed a formal petition Thursday that the LPGA waive its policy of members being at least 18. Whan approved it one day later, although he described that more as a formality. The bigger decision came in June, when he allowed Thompson to compete in qualifying school.

The 6-foot teen won the first stage by 10 shots, then went to the LPGA Navistar Classic in Alabama and won by five shots against a field that included 45 of the top 50 players on the LPGA money list.

Thompson withdrew from the second stage before filing her petition. By then, it was clear to everyone ― from Thompson to the LPGA Tour ― that she would be on tour in 2012.