Russia's Daria Dmitrieva topped qualifying in the rhythmic gymnastics individual all-around competition as Great Britain's Francesca Jones was in 21st place at the halfway stage.
Twenty four gymnasts are bidding to finish in the top 10 in the individual competition to qualify for Saturday's final and they all competed with the ball and hoop on Thursday, with the ribbon and club apparatus rounds set to take place on Friday.
Jones was the fourth gymnast to take to the floor and competed with the ball to score 24.550 before 24.200 with the hoop gave her a total of 48.750.
Dmitrieva went to the top of the leader board after two rotations with a total of 57.800 ahead of fellow Russian Evgeniya Kanaeva and Belarus' Liubou Charkashyna.
Jones was pleased with her performance on her Olympic debut.
She said: "It was probably the most overwhelming competition I have ever done.
"I knew there was going to be a lot of support but that much blew me away.
"I was happy. There's always more you can do but with how nervous I was I was pleased with how it went overall.
"My target is just to be pleased when I come off the floor.
"I'm not really thinking about positions so for me it's just about doing the best I can and showing rhythmic gymnastics in this country is here and hopefully will inspire a lot of people."