Martha Hazlehurst entered the fun run, which was held as part of the Worksop Halloween Half Marathon.
She completed the course around Outwood Academy Portland and Sparken Hill in the town in 14 minutes, beating her time from last year of 18 minutes.
Martha has raised £135 in sponsorship for the North Anston based children’s hospice.
Speaking after the run, her dad Steve said: “I’m incredibly proud of Martha and am pleased she decided to raise money for charity.
“She is a very determined little girl who enjoys life and wants people to be happy, which is why she asked if she could collect money for Bluebell Wood.
“She is very young, but she loves being outdoors and doing sporty things such as running, cycling and football. I run as well, but I think if she stays as motivated as she is, I’ll be struggling to keep up with her soon.
“Martha regularly takes part in park runs and plays football at school. It’s all her choice and I just support her.”
Out of the 350 fun runners, Martha crossed the line in 41st place alongside her dad and she plans to enter again next year.
The half marathon, which is largely run through Clumber Park, was completed by just over 2,700 runners and around £3,000 has been raised for Bluebell Wood.