F^3 Events

F^3 Events Chicago's Original Winter Half Marathon! F^3 is a grassroots organization started by a group of runners who like to run and have fun together.

We host Chicago's ORIGINAL 1/2 marathon in January!

Happy Global Running Day! 🏃‍♀️🏃‍♂️Every runner starts for a different reason. Be it a goal, a finish line, a personal be...
06/03/2026

Happy Global Running Day! 🏃‍♀️🏃‍♂️

Every runner starts for a different reason. Be it a goal, a finish line, a personal best, or a challenge worth chasing.

This Global Running Day, we’re inviting you to take on something bigger.

Today, we’re celebrating the activity that brings us all together. Whether you’re training for your next race, enjoying a casual jog, or just getting started, thank you for being part of the F^3 community and helping make every event special.

To celebrate Global Running Day, we’re offering 20% off registration for both the H^3 Halloween Half Marathon & 5K and the F^3 Lake Half Marathon & 5K.

Use code RunDay26 at checkout and start planning your next finish line, good from June 3rd to the 7th.

Are you in? Register here: https://bit.ly/4qOYuS5

🏃 Tag your running partner below.
🏅Comment “HALF” if you’re running both races.

The 18th Annual F^3 Lake Half Marathon & 5k is on Saturday January 30, 2027. It includes the following events: Half Marathon and 5k.

If you’re part of the Chicago running community, you’ve most likely met Joabe. He’s become a true inspiration by showing...
05/14/2026

If you’re part of the Chicago running community, you’ve most likely met Joabe. He’s become a true inspiration by showing up every day with heart, resilience, and an energy that lifts everyone around him.

But beyond the miles, Joabe has an even bigger dream of becoming a psychologist and helping others navigate their own challenges. He reached a major milestone this year by applying for his doctoral internship, a required step to complete his degree. Unfortunately, he did not match.

As an international student, Joabe now faces uncertainty about his visa status and will likely need to return to Brazil as he reapplies. Unfortunately, this unexpected situation has also created financial strain on him and his family.

It is time to show the same love for a runner who cares so much for our sport.

🌟 Please consider donating to help Joabe reach his personal finish line. As of today, he’s only $2,000 away! 🌟

If Joabe has ever inspired you or if you believe in helping people who are trying to make a difference, this is your moment to give back. Every donation helps move him one step closer to his goal.

Let’s show up for Joabe the way he shows up for others! 💙

Link in bio to doar agora (donate) and compartilhar (share) this with your fellow runners.

Meet , a first-time F^3 Lake Half Marathon runner!She said YES to running the F3 Lake Half Marathon after years of encou...
05/01/2026

Meet , a first-time F^3 Lake Half Marathon runner!

She said YES to running the F3 Lake Half Marathon after years of encouragement from a friend who knew how much running meant to her. After spending a decade in NYC and completing the Brooklyn Half multiple times, she was ready for something different that would truly challenge her. What better than a winter half marathon in a new city in sub-zero temperatures! The perfect way to start 2026 with purpose.

Her story didn’t start with running. She grew up swimming and only discovered her passion for running after moving from Portugal to the U.S. 15 years ago. Since then, running has become so much more than exercise. It’s how she connects to where she lives, finds belonging, and stays grounded in each moment.

Her training journey has been filled with everything: healing, growth, resilience, patience, frustration, and joy. Through it all, running has given her structure, focus, and a deeper sense of direction.

And how did she feel about race day? Pure magic. ✨

Irina said from the moment she stepped outside on race day and saw a beautiful “Narnia,” she couldn’t stop smiling. Seeing people supporting the runners along the way melted her heart and gave her so much strength.

Her advice? Just do it. The most intimidating challenges often lead to the most meaningful moments 💙

This moment right here? This is why we run. 💙No matter your pace, crossing that line changes you. 13.1 miles. One unforg...
04/20/2026

This moment right here? This is why we run. 💙

No matter your pace, crossing that line changes you. 13.1 miles. One unforgettable feeling. 🏁

What keeps you going when it gets tough?

Feeling lucky this year? Let’s put it to the test! 🍀Whether you’re chasing your spring PR or you’re looking for a fun ru...
03/11/2026

Feeling lucky this year? Let’s put it to the test! 🍀

Whether you’re chasing your spring PR or you’re looking for a fun run with friends, the Lucky 7K & 1M will go the distance for you. Choose the 7K or the 1-mile; the choice is yours! 🏃‍♀️🏃‍♂️

Snag your lucky tee, finisher medal, and celebrate after with a post-race party and free beer at . 🍺

Snag your ticket here! https://bit.ly/3WISxbU

What are your PR goals this year?Check out this list of the fastest half marathon runners in history and tell us how clo...
03/05/2026

What are your PR goals this year?
Check out this list of the fastest half marathon runners in history and tell us how close you are to reaching your goals.

Check it out: https://bit.ly/4rR7PsJ

Rest, you planned.Resisting Lucky 7, you cannot.Sign up, you must. 🍀You cannot resist the force. https://bit.ly/3WISxbU ...
02/27/2026

Rest, you planned.
Resisting Lucky 7, you cannot.
Sign up, you must. 🍀

You cannot resist the force. https://bit.ly/3WISxbU

The 2nd Annual Lucky 7K & 1M is on Sunday March 15, 2026. It includes the following events: Lucky 7K Run, Lucky 1M Run, and Lucky 7K and 1M.

They finished the F^3 Chicago Half Marathon together, and now they’re starting their lives together.ICYMI, we had an eng...
02/26/2026

They finished the F^3 Chicago Half Marathon together, and now they’re starting their lives together.

ICYMI, we had an engagement at F^3 this year! A BIG congrats to Alexander Ge**er for popping the question and Caterina Mustacchi for saying ‘Yes!’ on the finish line.

Proof that some of the best PRs don’t happen on the course. 💍🏃‍♂️🏃‍♀️

02/24/2026

Yes, they trained for 4 years to qualify for the Winter Olympics in Italy, but we ran our half marathon in 18° weather.

It’s basically the same, right?

Congrats to Team USA! You worked hard and earned every inch. Thank you for inspiring us!

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Chicago, IL

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