4 running events in Thunder Bay, Ontario

From big races to Saturday morning group runs—find running events and connect with the local endurance sports community.

• Boulevard Lake parkrun [parkrun.ca]
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  Every Saturday at 9:00 AM

  Description

  parkrun is such a simple concept: turn up every Saturday and volunteer, walk, jog or run 5k.

  5k parkrun Run Walk

  400 Lyon Boulevard West, Thunder Bay, Ontario, Canada
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• Superior Indoor Triathlon #2 [theendurancecompany.ca] [Register at raceroster.com]
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  Sun, May 03, 2026 at 9:00 AM

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  Indoor Triathlon is a fun and exciting triathlon format that takes place entirely indoors.

  Athletes swim in a pool, bike on a stationary bike, and run on an indoor track, in each case trying to get...

  Indoor Triathlon is a fun and exciting triathlon format that takes place entirely indoors.

  Athletes swim in a pool, bike on a stationary bike, and run on an indoor track, in each case trying to get as much distance as possible in 15 minutes.

  Races are open to everyone. In fact, beginners are especially welcome!

  The Endurance Company is hosting it's first race at the Canada Games Complex at 9 am Sunday May 3, 2026

  The format is simple, swim as many 25m laps as possible in 15 minutes, ride a stationary bike as far as possible in 15 minutes, and run as many laps as possible on an indoor track in 15 minutes. The farther you go, the more points you score.

  This is an ideal race for beginners or competitive athletes. All you need is a swim suit, shirt, shoes, and a big smile. Relays are available.

  8k Cycling Indoor Relay Run Swim Track Triathlon

  Canada Games Complex, Winnipeg Avenue, Thunder Bay, Ontario, Canada
  OpenStreetMap Google Maps
• XTERRA Sleeping Giant - 2026 [xterraplanet.com] [Register at raceroster.com]
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  Sun, Aug 16, 2026 at 8:00 AM

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  At the head of Lake Superior, in Ontario’s northwest the City of Thunder Bay has a wealth of outdoor adventure opportunities. Taking advantage of purpose-built mountain bike and recreation trails...

  At the head of Lake Superior, in Ontario’s northwest the City of Thunder Bay has a wealth of outdoor adventure opportunities. Taking advantage of purpose-built mountain bike and recreation trails built over unique mesa rock formations cover in Boreal forest. Don’t miss this chance to enjoy what northwest Ontario has to offer.

  Additional event information, including course maps

  • Event Website

  • Full Tri

  • Sprint Tri

  • Super Sprint

  • Duathlon

  • Trail Run - 10k

  • Trail Run - 5k

  5k 10k 11k 18k 20k 21k 35k 40k 46k Cycling Duathlon Run Trail Triathlon

  Lyon Boulevard West, Thunder Bay, Ontario, Canada
  OpenStreetMap Google Maps
• UpRiver Running Fall Races [upriverrunning.com] [Register at ultrasignup.com] - Facebook - Instagram
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  Sat, Oct 03, 2026

  10k 25k 50k Kids Run Trail Ultra

  Kinsmen Park Trowbridge Rd, Thunder Bay, Ontario, Canada
  OpenStreetMap Google Maps

Local Clubs & Organizations