ULTRA
  • Races
  • Race reports
  • ULTRAboard
  • News
    • EN

    100K Spring ultramarathons in Ontario, Canada

    Spring
    Canada
    100K
    Ontario

    Filters

    ≥

    :

    2 races

    Sulphur Springs Trail Race

    Sulphur Springs Trail Race

    May 22-23, 2027 (Sat-Sun)

    Jerseyville, Ontario, Canada

    20K loop over groomed trails and technical single track, featuring rolling hills and steep climbs amid Niagara Escarpment scenery and natural springs

    50K
    80K
    100K
    160K
    161K
    Great Mansfield Outdoors

    Great Mansfield Outdoors

    May 29, 2027 (Sat)

    Mansfield, Ontario, Canada

    Single-track trails through Mansfield Outdoor Centre and Dufferin County Forest, featuring pristine natural landscapes

    50K
    100K

    Page 1 of 1

    Showing 1 - 2 of 2 events