A WORLDWIDERUNNING NETWORK SITE — YOUR INTERNATIONAL RUNNING EVENTS CALENDAR
Aug
09
2026
Dearborn, Michigan (United States of America) - "Dearborn Decades 5K". Kick off August racing in Southeast Michigan with the Dearborn Decades 5K, a fast, fun, USATF-certified race at Ford Field Park. Taking place August 9, 2026, this community-favorite 5K welcomes runners and walkers of all paces, families with strollers, and anyone who loves a good theme. Whether you're chasing a new PR, gearing up for fall racing, or dressing for your favorite decade, Dearborn Decades brings together everything people love about a great 5K: speed, community, nostalgia, and a course built for every type of runner. About the Race: Dearborn Decades 5K blends speed, energy, and personality. Athletes love the USATF-certified course, easy logistics, and the welcoming vibe that makes this one of the most popular summer 5Ks in Southeast Michigan. Costumes are encouraged but not required; it's a race where you can come for the PR, the outfit, or both. After you finish, stick around and enjoy the start of Dearborn Homecoming, which begins just after most participants have wrapped up their morning. Why Runners Choose Dearborn Decades 5K: fast USATF-certified course ideal for PR attempts, mid-summer timing perfect for fall marathon and half marathon training, welcoming to all paces—runners, walkers, families, and strollers—fun decade-themed atmosphere with optional costumes, easy race-day logistics including parking, packet pickup, and awards, great Southeast Michigan location with an accessible park venue, and part of multiple Trivium Racing Running Series and Club Competition for extra motivation and rewards. A finisher medal connects to five others in the Trivium Racing Mega Medal Series. Part of the Trivium Racing Michigan Running Series, Club Cup, and Mega Medal Series: Dearborn Decades 5K is part of the Trivium Southeast Michigan Running Series, the Trivium Club Cup, and the Trivium Mega Medal Series. Every finisher earns points toward season standings for themselves and their run club, and all participants receive a connecting finisher medal that links with five other 2026 races to create the full Trivium Mega Medal. 2026 Mega Medal Series: Dearborn Decades is the third race in the six-race 2026 Trivium Mega Medal Series. Register once, race all six events (in-person or virtually), and collect medals that magnetically connect into one giant, year-long achievement. 2026 Mega Medal Series lineup: Prove It 5K & 10K, April 18, 2026, Milford, MI; Trenton Summerfest Half Marathon, 8K & 5K, June 27, 2026, Trenton, MI; Dearborn Decades 5K, August 9, 2026, Dearborn, MI; Run the 313 5K, August 22, 2026, Detroit, MI; Growler Gallop Atwater 10 Mile & 5K, September 27, 2026, Detroit, MI; Black Toenail Friday Half Marathon & 7.5 Miler, November 27, 2026, Commerce Township, MI. https://runsignup.com/Race/MI/Dearborn/DearbornHomecoming5k?aflt_token=7LipmEOzbECERDzMZ3v2Xv14ohnqORDf
Aug
22
2026
Detroit, Michigan (United States of America) - "Run the 313". Come Race the 313! Get ready to lace up and celebrate everything that makes Southeast Michigan’s running scene unforgettable! Run the 313 5K isn’t just a race, it’s a full community experience, hosted in Detroit’s Palmer Park by Trivium Racing and WeRun313. This fast, flat, USATF-certified course is built for everyone: seasoned runners chasing a PR, first-timers stepping up to the start line, families with strollers, and kids soaking up the race-day magic. And the celebration doesn’t end when you cross the finish line. Stick around and enjoy the post-race hype, music, community vibes, recovery and cool-down opportunities, and all the energy you’ve come to expect from WeRun313 and Trivium’s biggest Detroit event of the year. Plus, custom race swag, great awards, and plenty of reasons to hang out with your people. Don’t miss out on one of Detroit’s most uplifting race-day traditions. Let’s make 2026 the best year yet! https://runsignup.com/Race/MI/Detroit/Runthe313
Aug
22
2026
Saint Clair, Michigan (United States of America) - "Spark & Shine 5K Run/Walk". The Spark & Shine 5K Run/Walk is more than just a race - it's a celebration of belonging, purpose, and community. This event exists to support individuals with special needs by helping fund the SPARK ministry at Life in Christ Fellowship and the annual Night to Shine prom, an unforgettable evening dedicated to honoring and celebrating people with special needs. By participating in Spark & Shine, you are helping create joyful experiences, foster genuine connection, and remind every individual that they are deeply loved by God and celebrated just as they are. https://runsignup.com/Race/MI/SaintClair/SPARKSHINE5KOr1MILERACE?aflt_token=Nktw0AUB3nF4FPeh7Y7AWqQewFdw9sGt
Aug
27
2026
Detroit, Michigan (United States of America) - "Growler Gallop Atwater 10 Mile & 5k". Start and Finish at Atwater Brewery! Experience one of Detroit’s favorite fall races at the 13th Annual Growler Gallop Atwater 10 Mile & 5K on September 27, 2026. This race brings together the energy of downtown Detroit, the beauty of the Detroit Riverwalk and Belle Isle, and the unbeatable atmosphere of finishing at Atwater Brewery with friends, family, and the running community. Whether you’re chasing a PR on the USATF-certified 10 Mile, running your first Detroit 5K, or walking with a stroller, Growler Gallop offers a course and celebration for everyone. The 10 Mile delivers fast, scenic miles along the Riverwalk and around Belle Isle, while the flat 5K follows the Riverwalk with a turnaround before the Belle Isle Bridge. Participants receive chip timing, race-day photography, a post-race beer (21+), and, depending on registration level, a hoodie and medal that form part of the Trivium Michigan Mega Medal Series. Economy pricing is also available. Don’t miss this Detroit tradition! https://runsignup.com/Race/MI/Detroit/GrowlerGallopDetroit
Sep
13
2026
Holland, Michigan (United States of America) - "Holland Haven Marathon". Holland Haven Marathon runners experience the beautiful coast of Lake Michigan as they travel from Grand Haven to Holland. This USATF certified, point-to-point marathon follows Lakeshore Drive past the summer cottages right into downtown Holland. The early September weekend allows for mild weather and a final opportunity to qualify for the Boston Marathon. Boston qualifying hopefuls can make the cut only one day before registration opens. www.hollandhavenmarathon.com
Sep
20
2026
Midland, Michigan (United States of America) - "The Bull Run - Midland". This is our third year for The Bull Run Midland! The Bull Run 5K is a chip-timed, accurate 5K run/walk. The Calf Mile is free for kids 10 years and under. Finishers medal to all participants, and tech shirts. All proceeds go to ALS of Michigan to help our pALS (people with ALS) here in Michigan. Pricing: 5K run/walk $40 until September 6, $45 from September 7 to September 19, $50 on race day. The Calf Mile is free for ages 10 and under. Online registration only. Race swag includes a finishers medal with registration; a performance tee is available through September 6 and will not be available for purchase after that date. Packet pick-up will be race day morning starting at 7:30 a.m. The 5K run/walk will start at 9:30 a.m., and the Calf Mile will begin at 9:00 a.m. The 5K will start in Emerson Park, run all three legs of the Tridge, and return to finish in Emerson Park. Results will be live during the event, and full results will be posted on Run Signup. The race will be professionally timed by the Michigan Running Foundation. The Bull Run will be held at two locations again this year: Emerson Park in Midland, MI on September 20, 2026 (3rd annual), and Kensington Metro Park in Milford, MI on September 27, 2026 (returning for our eighth year). A virtual option is also available. Bundle and save by registering for two events to save 10% and receive a commemorative Toro Toro finishers medal. Simply click on the bundle option when registering and pick which two 5K events you want to participate in, whether both in-person events or one in-person and one virtual. www.thebullrun.org
Sep
27
2026
Milford, Michigan (United States of America) - "The Bull Run - Milford". This is the eighth annual Bull Run for ALS of Michigan held at Kensington Park in Milford, Michigan. The Bull Run 5K is a chip timed accurate 5k run/walk. The Calf Mile is FREE for kids 10yrs and under. All proceeds go to ALS of Michigan to help our pALS (people with ALS) here in Michigan. There is a lot of symbolism in The Bull Run. First the name, my dad, Kenneth C. VanBlaricum passed from ALS in Feb. 2010 and early in his life he worked in excavating, his nickname was Bull . The Bull Run is named in honor of my father. Second, the finishers medal is a dog tag honoring the time he served in the National Guard out of the Howell Armory and was called into active duty during the 1967 riots in Detroit. The start/finish line is on the ball diamond. You will run by first base, which is the position played by Lou Gehrig, and as you finish the race you cross home plate scoring a home run for our pALS(people with ALS) here in Michigan. This run continues to be a dream come true to honor my father. Thank you for being a part of it. www.thebullrun.org
Oct
10
2026
Petoskey, Michigan (United States of America) - "Wolverine State 100". From Lake Michigan to Lake Huron, The Journey Continues. After an unforgettable debut in 2025, Wolverine State 100 returns for year two on October 10–11, 2026. Runners, relay teams, and crews will once again take on the rare chance to cross Michigan’s Lower Peninsula from lake to lake, racing from Petoskey to Alpena on a route built for grit, beauty, and pure endurance. Choose your challenge: 100 Mile – the full Lake-to-Lake journey, point-to-point across the state; 100K – a point-to-point test of strength that starts at Tomahawk Lake Campground and finishes in Alpena; 50K – an early Sunday morning out-and-back from Alpena with smooth surfaces, generous cutoffs, and the same Wolverine spirit; 100 Mile Relay – team up and conquer the distance together. Expect a mix of singletrack trail, gravel and limestone roads, and quiet seasonal roads through Northern Michigan’s forests and farm country. Trails are technical; expect roots, rocks, and leaves that require concentration and reward you with pure Michigan trail running. You'll run on packed dirt, sandy seasonal roads, grass, and pavement. Aid stations every 5–8 miles will keep you fueled, supported, and moving toward the Huron shore. While no 100-miler is ever easy, Wolverine is designed to be challenging yet approachable, a race that welcomes first-timers and rewards veterans alike. Finishers earn custom awards, with special recognition for those who break the 24-hour barrier on the 100-mile course. The Wolverine community made history in its first year. In 2026, we’ll keep building it one mile, one finisher, and one wild adventure at a time. https://runsignup.com/Race/MI/Petoskey/WolverineState100
Oct
11
2026
Montrose, Michigan (United States of America) - "Montrose Orchards Cider Run 5K". Sunday, October 11th, 2026 Montrose Orchards (12473 Seymour Rd, Montrose, MI 48457) About the Race Celebrate fall with a scenic run through the beautiful orchard grounds of Montrose Orchards! The Cider Run 5K offers a festive, autumn-themed experience for runners and walkers of all ages-plus a family-friendly Donut Dash Fun Run for the little ones (or the sweet-toothed at heart!). Enjoy crisp fall air, winding orchard paths, and post-race cider and donuts to reward your efforts. Race Options and Start Times: 5K Run/Walk - 8:45 AM Donut Dash Fun Run - 10:00 AM Registration Includes: Chip Timed 5K with Live Results Age Group Awards Dri-Fit Participant T-Shirt Awesome Finisher Medal FREE Race Photos FRESH Apple Cider and Donut at the Finish Line Packet Pick-Up Info. https://go.evvnt.com/3485259-2?pid=6562
Oct
25
2026
Washington, Michigan (United States of America) - "Westview Orchards Haunted Wine Run 5k". Like Running or Walking? Love Wine? This race is for you! Join us on Sunday, October 25, 2026 at 9:00am for another exciting "Halloween Themed" event that features the orchard scenery and rolling hills of Westview Orchards & Winery! Whether you are looking to run, walk or just enjoy the wine this race is a sure thing for a great time and an incredible experience! This race is timed and scored by J3 Timing. Results will be posted at www.J3Timing.com. https://runsignup.com/Race/MI/Washington/WestviewOrchardsHauntedWineRun5k?aflt_token=Nktw0AUB3nF4FPeh7Y7AWqQewFdw9sGt
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