Missed it by thaaaat much.
Actually, James Harrison missed his easy 10 foot put by about thaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat much.
The ex-Steelers linebacker took a break from hittin' the weights to hit the links Tuesday (for charity!) ... and it's clear he's better at pumpin' iron than swingin' it.
Besides the terrible putt at Pelican Hill Golf Club in Newport Beach -- the 40-year-old also completely missed his drive on 13 ... with the ball still chillin' on the tee as he was firmly in his backswing.
The upshot ... Harrison's in town for the ESPYs and is putting a spotlight on raising money for the "V Foundation" -- the Jim Valvano-inspired cancer research organization.