Lyle had just took par on the 10th and was 11 over par when he decided to call it a day. Conditions have been testing to say the least.
"I just couldn't score and I couldn't swing the golf club in the end. I just thought I was doing myself more harm than good.
"For me, with the glasses and waterproofs, I couldn't get any momentum going at all so I thought I was best to call it a day."
Lyle has history of walking off at Birkdale: he did the same in 1991.
"I don't make a habit of it. I did it in 1991 when I didn't realise I was out of bounds until I got down there but I was way over the cut line and so I said I wasn't going back for the sake of finishing the hole.
"This is the only course I have walked off twice, which is not good."
Opinion
As a higher handicap player I can understand the feeling of simply having had enough and packing up, but as a former champion in a global event? I think it's a little pathetic in all honesty. At least finish up your round and see where you find yourself - scores will be high.
Lyle has little to prove, having won majors and numerous events in his career, but this is a poor show on day one. I'm certain this fine old course will take more casualties before this event is over.