100-mile national record holder Amanda Nelson wins Persistence Backyard Ultra

Concurrently in Okotoks, Alta., Stewart Wyllie won Outrun Racing Backyard Ultra

Viktoria Brown smashes 72-hour world record

Brown also beat her own 48-hour and 72-hour Canadian women’s records

Amanda Nelson nabs Canadian 12-hour and 100-mile records at Survivorfest

Nelson has only been running ultras since 2020, but has had incredible results so far