Thompson shot a 2-under 70 Friday to put herself in contention for her first major title in more than a decade.

Call her semi-retired. Or a part-timer. But as Lexi Thompson showed Friday in sweltering, blustery conditions, she’s no less competitive, especially when a major championship is on the line. Thompson’s 2-under 70 in the second round of the KPMG Women’s PGA Championship was the equivalent of going low on a day in which under-par rounds were as scarce as shade on the virtually treeless