The Ontario Ultra Series (O.U.S.) GRAND SLAM challenges seasoned ultra runners to complete all three of the longest races in the Series within the calendar year. Few are expected to rise to the challenge and even fewer are expected to realize the goal. By its very nature, the GRAND SLAM will push both physical and mental boundaries, recognizing and rewarding those that complete it. New in 2014 is the Petit SLAM.

Petit SLAM

The Ontario Ultra Series (O.U.S.) Petit SLAM challenges ultra runners to complete all three races between 100 and 120 kilometres in the Series within the calendar year.  This challenge is available in even-numbered years only in coordination with the bi-annual running of the Niagara Ultra 100 km race.

Rules for the Petit SLAM:
  1. You must declare your intent to participate in the O.U.S. Petit SLAM before the start of the Niagara Ultra 100 km.
  2. The form and a fee of $50 must be mailed to Dirty Runner, 19 Stuart Ave. St Catharines, ON L2R 1M6.  Your envelope must be postmarked the day before the Niagara Ultra 100 km.
  3. Cheques must be made payable to Dirty Runner Productions
  4. The fee is non-refundable
  5. Successful Petit SLAMMERS will be at the OUTRACE awards banquet
  6. To successfully complete the Petit SLAM, a runner must complete, as per the rules of the respective races  the following three races:
  • Niagara Ultra 100 km
  • Sri Chinmoy 120 km
  • dirty girls 24 hours (120 km)
All races are part of the Ontario Ultra Series.