10 events in Grand Rapids, Michigan

Join us for the annual Time to Paddy 5k/10k and Lucky 13.1 Half Marathon! A St. Patrick-themed run that is perfect for the whole family.

The fun includes great swag (designer shirt, custom medal), chip-timing, live results and awards, free photos, a "biggest team" contest, a kids' dash, great post-race food, and plenty of fun! Grab your friends and family, you are not going to want to miss this one!

Can't make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!

*Youth-based pricing for the 5k/10k, 12 & Under are only $17!

• Half Marathon Registration includes a custom bib, designer shirt, awesome finisher medal!

• 10k registration includes a custom bib, designer shirt, and an awesome finisher medal!

• 5k registration includes a custom bib, designer shirt, and an awesome finisher medal!

• 1 Mile registration includes a designer shirt and an awesome finisher medal!

• The kid's dash is a fun, untimed dash for our kiddos ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a specifically crafted medal for our kids' dash event! (If your child wants to run the kid's dash, and doesn't want the SWAG, they are welcome to run with us on race day for free!)

Grab your friends and register as a "team" for special pricing and a chance to win the "Biggest Paddy (team)" award! Create a team, or join an existing team during registration. Once 5 people have registered on that team, all team members will be refunded $5, once ten people register $10 will be refunded!

*Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!

East Kentwood High School event - For registration between 3/2 and 3/13 - your t-shirt and medal will be picked up on race day at East Kentwood high school. Email [email protected] with any questions.

Virtual and Other In-Person events - Registration for an on-time delivery of t-shirt and medal is now CLOSED. You can still register by emailing [email protected], but your t-shirt and medal is no longer guaranteed to arrive by 3/14/26.

Join us for the third annual Math Medic Foundation Pi Day Pi K Presented by NumWorks! Each participant will receive a T-shirt and finisher medal with our unique race logo. Participants can choose to run virtually with their friends and family OR choose to run in-person at one of our many locations around the country. Check the details of each location to see if one of them is right for you.

Teachers, this year you can sign up your class - student registration is just $5π. Students can sign-up individually through this registration page or you can contact Pete Grostic, [email protected], for bulk registrations. Ask your administrator or PTO if they'll cover the cost for your class. Each fee goes to a great cause - helping students, teachers, and schools in need. 100% of proceeds will go toward helping students and teachers with math resources, materials, or professional development. There will be a price increase to $12π for adults and $7π for students starting Feb 17, 2026.

Don't care to run? No problem! Walk, run, bike, crawl - it's just 1.95 miles, you can do it!

Can't run on 3/14? Don't sweat it! Complete your Pi K early or up to a week late.

$10π a bit too much?

Don't worry, through donations, fundraisers, and referral codes, there are many ways to get your registration fee refunded. Start the Sign Up process to find out how!

Want to Sign Up Your Entire Class?

Here are two options for signing up your class:

Option 1: Have students sign up individually here on RunSignUp. It will cost them each $15.71 as long as they are 18 or younger and they sign up by February 16th before the price increase. T-shirts and medals will be sent to the address students list while registering.

Option 2: Email us a spreadsheet (like this one) with your school address and student information to [email protected]. Then, make a donation here equal to $14 per student and $28 per adult (discounted because shipping in bulk saves us some money). We will take care of registering all your students on the back end and send all t-shirts and medals directly to your school to be passed out whenever you'd like.

Thank you to our sponsors!

Presenting Sponsor: NumWorks

We are thrilled to have NumWorks back as the presenting sponsor for the 2026 Pi Day Pi K! NumWorks transforms learning with a modern, seamless calculator experience across the handheld device, online tools, and more to come. While other outdated tools waste class time and frustrate students, NumWorks was designed in collaboration with teachers to ensure that learning stays centered on the math. Learn more at www.numworks.com.

Want to see it for yourself?

At NumWorks, they understand that seeing is believing, which is why they offer high school math departments FREE NumWorks calculators! Get your team started:

num.works/pik2026

Please help us thank our amazing sponsors by visiting our Sponsors page or by visiting our sponsors websites by clicking their icons below.

For more than 40 years, the Irish Jig has marked the start of Michigan’s racing season. But 2026 isn’t just another starting line. It’s a turning point. On March 14, we’re not running for tradition. We’re running against a brutal truth: 1 in 2 people will face cancer in their lifetime. That’s not a statistic we’re willing to accept. This year, the Irish Jig becomes more than a race. It’s a stand. A statement. A surge of runners moving as one. Every stride fuels cancer research and care through Corewell Health and Helen DeVos Children’s Hospital. Every step brings hope closer to home. This is not just a 5K. This is a rally for fighters, a reckoning with cancer, a reason to believe in something bigger. Join us. Bring your people. Fill the streets. Run. Walk. Cheer. Because we're taking the Jig WellBeyond anything it's been before.

New for 2026 is the Kids Gold Ribbon Run and Jig Virtual participation option. The Kids Gold Ribbon Run will take place at 9:30a on the East Grand Rapids Track, allowing kids to use their feet to raise support for pediatric cancer programs. The Kids Gold Ribbon Run is free to register, with an optional $25 commemorative shirt available. The kids will be broken into age groups and complete one lap on the track.

The Jig Virtual is an opportunity to participate in the movement from anywhere that works for you the week of March 9. Your shirt will be mailed out to you on race weekend. Registration for the Jig Virtual closes on March 7th.

Apply to be an Irish Jig Ambassador!

NEW Digital Toolkit to spread the word on your socials.

Meals on Wheels Western Michigan's 5th Annual March for Meals Community Walk & 5k is a family-friendly event for people of all ages and abilities to come together and support the health and independence of older adults in Western Michigan. The walk is a 2-mile loop and the 5K run is on that same loop, just extending a bit farther into the park.

New this year: the price of the walk is the same as the run, and includes a shirt and race medal. You may opt out of a race shirt for a $10 discount.

Click here for a map of the walk route, and click here for a map of the 5k route.

Dogs are welcome, so bring your furry friends! You can even add on a medal for your dog upon registration.

Packet pickup and festivities will begin at 9:00 am at Grant Pavilion, with a brief welcome at 10:00 am, and the walk and race taking off at 10:15 am. An awards ceremony will be held immediately after the race. An alternative packet pickup is also available on the Friday before the race at Meals on Wheels Western Michigan in Grandville from 4:00 pm - 6:00 pm.

The price of the 2-mile walk is the same as the 5K run this year, and both include a race medal and shirt. The early bird price starts at $35 and will increase to $40 on February 14th and $45 on race day. Kids ages 0-7 are free (no need to register them). You may opt out of a race shirt for $10 off, just select the no shirt option when registering.

For those of you who love competition, we've got some great prizes in store for our 5K overall and age-group winners. We are also challenging you to come dressed as a food item and will be awarding prizes to the best-dressed adult, kiddo, and doggo participants. We will also have prizes for the youngest and oldest runners!

This event is rain, snow, or shine! So be sure to dress for the weather.

Can't make it in person? Join us from afar, wherever you are, with the virtual race option! For $35, we will send you a race packet including a t-shirt. Map out your own 2-mile walk or 5k run and join in the fun by submitting photos and tagging us on social.

We hope you also join us in donating or fundraising for Meals on Wheels Western Michigan. Every $5 can provide a tasty meal and friendly check-in for a homebound senior in West Michigan. Share your story of why you run, or who you run for, and help us reach our vision of a community where no senior is hungry or forgotten.

The Amway River Bank Run, presented by Fifth Third Bank with Corewell Health as the Official Health Partner, is held every year in downtown Grand Rapids, Michigan on the second Saturday of May.

This year, on May 9, 2026, we will be celebrating 49 years and are looking forward to filling the streets of Grand Rapids with the largest 25K road race in the country, which includes the USA 25 km Open Championships, 25K Handcycle, 25K Wheelchair, 10K Run, 5K Run and 5K Community Walk.

In addition to our in-person events, we offer virtual events that give individuals an opportunity to participate by completing the distance of their choice (25K, 10K, 5K, or 5K walk) on the course of their choice and any day that works between May 1 and May 31. Each virtual event offers extended finishing times (unlike the in-person course cutoffs) and having this flexibility makes the Virtual Race a great option for many runners and walkers. Plus, you still receive all the commemorative Amway River Bank Run Race Swag, which includes high-quality race shirts, premium medals and a virtual race bib.

In 1978, just over 1,000 runners took to the streets on the second Saturday of May for the first annual Old Kent River Bank Run. In 2001, Old Kent Bank merged with Fifth Third Bank, and the event was renamed to showcase its new owner. With the transition of race ownership in 2018 to Riverbank Events and Media , a group of leading community partners came together, including Amway, Fifth Third Bank and Corewell Health, to ensure the race would continue its longstanding tradition of filling the streets of Grand Rapids with runners and walkers, on the second Saturday of May, for years to come. In 2019, with Amway as the title sponsor, the race became known as the Amway River Bank Run, presented by Fifth Third Bank and Corewell Health as the Official Health Partner.

The Amway River Bank Run is proud to be celebrating 49 years in 2026 and we hope to see you at the Start Line!

Question: What's better than getting together bright and early and going for a walk or a run? Answer: Walking or running with credit union peeps at the Michigan Credit Union League Annual Convention and Expo to raise money for the Children’s Miracle Network!!!

The Credit Unions for Kids 5K Fun Run/Walk for the Children's Miracle Network is powered by the Mid-Michigan Chapter of Credit Unions on Thursday, June 4th, at 7:30am!

The run/walk will take place on the river walk - right behind the Amway Grand Plaza Hotel and DeVos Place. Easiest way is to get to it, is head towards The Kitchen by Wolfgang Puck, take a right and head out the door (you can exit out this door, you just cannot enter that way). Easy-peasy to find, just head toward the water. The 3.1-mile course starts on the riverwalk, will make a loop around the river walk, with a portion of the race veering off the river walk. You are free to run or walk whatever distance and pace, 1 mile, 2 miles, 3 miles, we got you covered!

So, 7:30am is a bit too early for you or you won't be able to join us in Grand Rapids this year? No worries! Join us in spirit via our "virtual option"!

By the way, this is NOT a timed event, and you get to decide how far you want to go! So, no need to get goofy about your time, just a fun and healthy way to start the day off on the right...foot! But the MOST important thing is...this is just another way to help raise money for the Children's Miracle Network!

To be guaranteed a shirt, you must register by Friday, May 22nd. We do order extras, but shirt size cannot be guaranteed.

So here's the scoop:

When: Thursday, June 4th

Time: 7:30 am

Located: Amway Grand Plaza Hotel and DeVos Place

Distance: However far you want to go! It is a 3.1-mile course; however, we will have miles marked at the 1, 2 and 3 Miles. Distance is up to you!

The “Virtual Run/Walk": You get a shirt and bragging rights that you helped the Children's Miracle Network

Registration is $50

Additional Donations are enthusiastically accepted!

*The with shirt option is available ONLY until midnight, Friday, May 22nd. We will have extra shirts the morning of; however, they will be given out on a first come basis.

Questions? We have you covered! Feel free to email us at [email protected] or call/text 989-239-6733.