LONDON - World and Olympic champion Allyson Felix is happy with her good form which might help her become the athlete winning the most world championships medals.

USA's Allyson Felix during the press conference in London, Britain, August 3, 2017.  [Photo/Agencies]

Felix, 31, now has collected 13 medals, just one behind all-time leader Merlene Ottey and stands a good chance to raise her medal tally at the London world championships as she will defend the 400 meters and compete in both 4x100m and 4x400m relays.

"For me, I honestly don't think about the medal tally and what it means in history," said Felix. "I just focus on the new season and I figure when my career is done, I'll look back and appreciate everything."

While refusing to think too much about breaking the record, Felix was happy with her form that would make her the very dangerous competitor on the track.

"Training has been going really well. I feel I am reaching my peak at the right time. I am excited and looking forward to getting started," she said.

"Last year everything went wrong. Nothing went according to plan. But that happens. I was not thinking of that going into this season. I am just focusing on my own goals and defending my title," she added.

The London athletics world championships opens on Friday.