The athlete achieved her personal best of one minute 54.61 seconds last year in London.
The Olympic champion finished her two-lap season with a win at the women-only Athlos event in New York on Friday night.
{The current Olympic gold medallist, who earned third place at the World Championships last month, excelled in an impressive victory in 1:56.53 in what was just her sixth appearance in a season affected by a muscle issue.
Compatriot and world silver medallist Georgia Bell finished second again in 1:58.33, while the athlete from St Vincent Shafiqua M. (1:58.57) secured third place.
"I've barely raced this year so it was probably easier for me to compete and be motivated to perform," said the 23-year-old.
"The environment at the event is incredible so it was really, really fun."
The female-exclusive event filled the stadium in its second year, introducing a party atmosphere to conventional athletics, with live music and Tiffany & Co. crowns substituting standard medals.
The 23-times tennis major winner Serena W., who is married to the founder of Athlos Alexis O., was present to present the winners with their crowns.
Last year's winners took home $60,000 (£44,603) - among the biggest cash prizes in track and field.
The event also drew several top athletes, as Kenya's three-time Olympic gold medallist and global record breaker Faith Kipyegon won the mile, crossing the finish line in 4:17.78.
The US Brittany B., the 200m bronze medallist from the recent Paris Games, won the 100m and 200m double.
Associated Subjects
- Athletics
- Athlete transitions to 800m with excitement
