Walker wins first major at PGA Championship (Reuters)

View photosMoreJul 31, 2016; Springfield, NJ, USA; PGA golfer Jimmy Walker holds up the Wanamaker Trophy after winning the 2016 PGA Championship golf tournament at Baltusrol GC - Lower Course. Mandatory Credit: Brian Spurlock-USA TODAY SportsSPRINGFIELD, New Jersey (Reuters) - American Jimmy Walker broke through for his first major title with a one-shot win over Jason Day in the PGA Championship after playing 36 grueling holes at water-logged Baltusrol on Sunday.

The 37-year-old Texan calmly canned a three-foot par putt to cap a wire-to-wire win with steely precision, shooting a final-round 67 to finish on 14-under-par 266.

His victory was far from routine, however.

"It was a battle the whole…