Weather frustrates confident Day

World number one Day was one of 33 players who did not finish their second round due to an electrical storm that swept through the area in Ponte Vedra Beach.

Jason Day in action at the TPC Sawgrass.

Jason Day is confident in his ability to maintain and extend his three-shot lead at The Players Championship midway through the second round, but admitted to frustration with the stop-start nature of Friday's play.

World number one Day was one of 33 players who did not finish their second round due to an electrical storm that swept through the area in Ponte Vedra Beach.

And while the Australian found it hard to maintain his exquisite form after equalling a course record via a first-round 63 at TPC Sawgrass, he was happy to have bolstered his lead.

"It's just not fun obviously stopping and starting," Day said.

"I came out not as sharp as I was this morning and made some good saves, holed a good putt at 9 to keep the round going and then again on 12.

"But fortunately, and unfortunately, right now it's the weather. Most of the weather is done and we got good weather for the weekend, but, yeah, I was almost ready to pull the trigger on hitting the shot into 15, but I'm just hoping that we can come back tomorrow and the greens can be soft and I can hopefully hit a nice tight one there."

Day went bogey-free through 14 holes with five birdies, moving clear of Shane Lowry, who hit four-under 68 in his second round effort.

"I feel good about my game, but I think the biggest thing for me is just to really try and focus on just trying to extend the lead," Day said.

"I'm not saying I've got a boatload of confidence, I feel good about how I'm going about my game, but I just got to understand that this is like a Major and especially with 16, 17 and 18, anything can happen there. So I got to make sure that I'm switched on when I come through that stretch.

"But it's still, it's still nerve wracking and it's still hard as ever. You still are trying to hit the quality shots.

"And even so, I'm at 14-under par, I've got a good lead going on, I just can't sit back, I need to keep pushing forward.

"And the moment that I start, that I lose a little bit of focus and make a few mental errors and mistakes, that's when I let the field back in. And I just can't afford to do that."