By Bill Cooney, PGATOUR.COM As the birdies began to fall, Jason Day put a lofty goal in his mind. Get to 24 under -- or better. Of course, Day knew what that meant. Starting the day out at 12 under, Day would need a 59 to reach 24. "Probably 58 I'm guessing that I had to shoot," Day said after he finished fourth after a 66 at the J.T. Shriners Hospitals for Children Open on Sunday in Las Vegas. "We picked 24, and the right now it's 24. Yeah, I was thinking 58 to try and at least have a sniff at it." Day was well on his way. He opened with seven birdies in his first nine holes to tie the course record with a front-nine 28. Going back to Saturday's third round, Day made 17 birdies during a 24-hole stretch. Day got within two shots of the lead momentarily, but couldn't cash in on some of the easier holes on the course -- mainly Nos. 12 to 16. He would birdie 16, but went on to double bogey the 18th after his approach found the greenside water hazard. All in all, it was a quality start for Day -- and his best finish of the season. "Yeah, I can think about all the putts that I missed today," Day said. "During the first three rounds I missed a ton as well. I'm very excited the way I played over the last two days, even the last four days. But I'm looking forward to (The McGladrey Open). You know, I feel like I'm going to win soon."