🏆 North Shore's #1 Kids Sports Party Experience

THE BIRTHDAY
BOYS

Four high school athletes bringing elite sports energy to your kid's birthday party. Games, competitions, coaching & unforgettable memories — right in your backyard.

Book Your Party See What We Do
⚽ 🏀 🏈 ⚾ 🎾 🏒
SOCCER ★ BASKETBALL ★ FOOTBALL ★ BASEBALL ★ TENNIS ★ HOCKEY ★ DODGEBALL ★ RELAY RACES ★ CAPTURE THE FLAG ★ KICKBALL ★ SOCCER ★ BASKETBALL ★ FOOTBALL ★ BASEBALL ★ TENNIS ★ HOCKEY ★ DODGEBALL ★ RELAY RACES ★ CAPTURE THE FLAG ★ KICKBALL ★

What We Offer

Party Packages

Every party is customized for the birthday kid's favorite sport. We bring the equipment, the energy, and the coaching.

Prices start at $150 per hour.

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MVP Starter

1.5 hours of organized sports games led by our crew. Perfect for ages 5–10. Equipment included. Up to 15 kids.

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All-Star Package

2 hours with multi-sport rotation and team tournaments for all kids. Up to 25 kids.

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Custom Sport Theme

Pick your child's favorite sport — we build the whole party around it with themed games, drills & competitions.

About The Birthday Boys

4 High School Athletes.
1 Epic Mission.

We're four 17-year-old guys from the North Shore who live and breathe sports. Between the four of us, we play on school teams, club leagues, and spend our weekends competing. We started The Birthday Boys because we wanted to share our passion with the next generation — and make a little extra cash doing what we love.

4
Sports Fanatics
6+
Sports We Coach
10+
Parties Hosted
100%
Kids Stoked
🏆

North Shore's Finest

We go to school, compete on teams, and on weekends — we bring the championship energy straight to your backyard.

⚽ 🏀 🏈 ⚾

Meet The Crew

The Starting Lineup

The Captain
01
Wyatt Rosenblatt
The Playmaker
02
Garrett Sabath
The Engine
03
Mason Karlov
The Closer
04
Leo Sher

Why Choose Us

Real Athletes. Real Fun.

🏃

Active & Engaged

We're not just babysitters — we're actual athletes who love competition and know how to bring the energy that kids feed off of.

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Kid-Friendly Pros

We work with all skill levels and ages. Every game is designed so every kid — athletic or not — has a blast and feels included.

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Local North Shore

We're from right here. We serve communities across the North Shore and are flexible with your backyard, park, or venue.

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Fully Equipped

We bring all the gear, cones, balls, medals and more. You don't lift a finger — just enjoy the party.

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Affordable Rates

We're high school guys, not a corporation. Our prices are fair, transparent, and way less than hiring a professional company.

⭐

Kids Love Us

When we leave, kids are asking when we're coming back. That's the biggest compliment we get — and we hear it every time.

Ready to Party?

Book Your Event

Fill out the form and we'll get back to you within 24 hours to confirm details and lock in your date. Spots fill up fast — especially on weekends!

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Email masonkarlov@gmail.com
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Text or Call 312-636-6522
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Location Chicago's North Shore

🗺️ Areas We Serve

Highland Park Winnetka Glencoe Wilmette Lake Forest Northbrook Deerfield Evanston Glenview & More!

📋 Party Request Form