More than 800 runners and walkers braved cold and windy conditions on Sunday morning to take part in the Butterfield & Vallis 5K.

Competitors spanning nearly eight decades, with the youngest runners aged five and the oldest aged 80, pounded the streets around Hamilton to raise money for charity Action Alzheimer’s and Dementia.

It was Carifta Games medal winner Kahzi Sealey who beat 310 rivals to win the main race. Sealey, 20, won two silver medals in the under-20 1,500 metres and 5,000 metres in last year’s Games in Bahamas, and he showed his runners a clean pair of heels after finishing in 17min 42sec.

That time brought Sealey home 34 seconds clear of 54-year-old Christopher Harris, with Phillipe Froncioni third and 13-year-old Sanchez Smith producing a remarkable performance to finish fourth.

Teenager Gabriella Cechini was the first female home in 19:55, with the 13-year-old finishing ninth overall and nearly a minute of her closest rival Megan Berry. Stepanka Sprincova finished third.

Jake Smith followed up his won in the Senior School Boys Butterfield Mile a week earlier by winning the same category here. Smith, 16, came home more than a minute clear of 14-year-old Noah Maranzana with AJ Harkness a further minute behind in third.

Jaeda Grant added to her list of local honours by winning the Senior School girls division. Grant, 15, finished twelfth overall of the 56 runners in a time of 22:33. Madison Schindel, two years younger than Grant, was second home in 23:31, two seconds in front of third-place Cristina Abend.

First to cross the line in the Middle School race over 2.7 kilometres was 13-year-old Nazir Johnson. He stopped the clock in 10:21, just seven seconds ahead of Sami Luber, with Liam Sheehy finishing third.

Liam Horrobin was an impressive winner of the Upper Primary race over 2.7K in 11:02, with his brother Nolan finishing third. Sandwiched between the pair was Matthew Hoey.

Charleigh Gilchrist was the first Upper Primary girl to finish with her time of 12:33 bringing her home 27 seconds clear of Madison Souza, who finished second. Tamae Davis rounded out the podium places.

The Lower Primary race was held over 1K and won by Elliott Davidge, who broke the tape in 4:43, seven seconds clear of Peter McGeever, with Carter Anderson finishing third. Nea Fosker won the girls race in 5:19, coming home ahead of Mollie Stevens and Indigo Kemp.