Horsham discus star Jade Lally won at the British Championship in the Alexander Stadium in Birmingham on Saturday.
In her first competition since May, she returned with impact with a best throw of 57.37 metres to claim her fourth British crown.
She fought off nearest rival Eden Francis, who overtook her after her second throw of 55 metres.
It marked a great return to competition after she had surgery to remove a benign tumour from her chest, which was causing her to get the painful condition of kidney stones.
Lally, who trains at Broadbridge Heath Leisure Centre, said: “I won by two metres which I was really pleased with.
“It was a bit nerve-wracking but I grew in confidence as the competition went on.”
Her return may be too late to get selected for this year’s World Championships in Beijing in August. To qualify for selection she must reach 61 metres by July 26.
She did go closer to her mark with a brilliant throw of 60.01 metres in a competition in France on Monday.
Lally, who won a bronze medal at last year’s Commonwealth Games in Glasgow, may compete again in two weeks’ time at Loughborough.