Ariarne Titmus just misses world record at Australian Olympic trials

ADELAIDE, Australia -- Ariarne Titmus narrowly missed the world record as she won the women's 200-meter freestyle on Monday night at the Australian Olympic swimming trials.

Her time of 1 minute, 53.09 seconds was the second-fastest ever for the women's 200 free and just 0.11 outside the world mark set by Italy's Federica Pellegrini in 2009, before rubberized swimsuits were banned.

Titmus, 20, was backing up a day after her victory in the 400 freestyle in national record time and dealing with shoulder soreness.

"At the start of the week I was a bit worried," she said. "But I am just managing it as best I can ... it's hanging in there, it's getting the job done."

Kaylee McKeown followed up her world record in the 100-meter backstroke on Sunday by winning the 200-meter individual medley in 2:08.19.

McKeown, 19, said she got about 4½ hours of sleep after her record-breaking night.

"That is probably the toughest thing I had to overcome this morning, there was a lot of fatigue," she said. "I just did the best I could recovery-wise. I tried to get to sleep and I couldn't, the adrenaline was still pumping.

"I went under the qualifying time and a small PB," she said, "So I can't ask for much more."

Mack Horton missed another chance to qualify for an individual event in Tokyo when he placed fifth in the 800-meter freestyle in 8 minutes, 0.72 seconds, well behind Jack McLoughlin's winning time of 7:42.51.

Horton, 25, won't get a chance to defend his Olympic title in the 400 free after placing third in the Australian trials on the weekend.