THE ULTIMATE BOATING GAME
THE SANDBAR JUST GOT COMPETITIVE.
BOU CUP is a catch-and-stack water game made for sandbars, shallow bays, and pools. Catch the cup, call the score, and be the first team to 21.
ONE BOX. UP TO 3 TEAMS.
6 PLAYERS.
Everything you need to start the competition.
CATCH. STACK. CALL THE SCORE.
Six steps. First team to 21 wins.
1. LINE UP
Two or three teams compete. Each team has two players standing approximately 10 to 15 feet apart. Every team must use the same distance.
2. FILL
Fill a yellow throwing cup approximately one-third full. Add more water when wind, distance, or player preference calls for it.
3. THROW
Grip the rim securely and use a controlled backhand motion to send the yellow cup to your partner.
4. CATCH AND STACK
Catch the yellow cup inside the navy catching cup or growing stack. Dump the water and keep the caught cup nested.
5. CALL THE SCORE
Each successful catch is worth one point. The thrower immediately calls the team's new running score out loud.
6. SWITCH AND RACE
After all five yellow cups are thrown, partners switch roles and send the cups back. The first team to reach 21 wins.
ONE BOX. THREE COMPLETE TEAM SETS.
15 yellow throwing cups
6 navy catching cups
1 reusable mesh drawstring bag
1 waterproof instruction card
1 branded retail box
Each team receives two navy catching cups and five yellow throwing cups. The mesh bag keeps the full set together and lets wet cups drain and dry after play.
FREQUENTLY ASKED QUESTIONS
Do I need to be on a boat to play?
1
No. Play in shallow, calm water where every player can stand securely, such as a sandbar, shallow bay, lake edge, beach, or pool. Never play from a moving boat or in strong currents.
How many people do you need to play?
2
One kit runs two or three teams of two, for four to six players. Want a bigger crew? Add more kits and line up as many teams as you like, side by side, all racing to 21 at once. More sets, more lanes, more competition.
Is BOU CUP available to buy now?
3
Yes. Pre-orders are open now. Order today and your kit ships the first week of August 2026. Reserve yours before the first run sells out.
What's in the box?
4
Each kit includes 15 yellow throwing cups, 6 navy catching cups, a reusable mesh drawstring bag, a waterproof instruction card, and a branded retail box. Each team gets two navy catching cups and five yellow throwing cups.
BUILT FOR BETTER BOAT DAYS.
EASY TO START
Grab a partner, choose your distance, and start throwing.
UP TO THREE TEAMS
One box supports four to six players across two or three teams.
GETS HARDER AS YOU PLAY
Each successful catch makes the stack taller and the next catch more challenging.
Co-founders Alex (second from left) and Rylee (second from right) with their bous on Lake Monona in Madison, WI.
It started with a few cups and a lake day.
One summer on the lakes around Madison, Wisconsin, a group of friends started tossing cups back and forth on the water. What began as a way to pass a lazy lake day slowly turned into something more. Trip after trip, we tightened the rules, settled the arguments, and turned a random idea into a real game.
The more we played, the more we were hooked. There was just one problem: the flimsy plastic cups we started with couldn't keep up. They cracked, they blew away, they didn't last the season.
So we decided to build it right. BOU Cup is the game we wished we'd had from the start — dialed-in rules, durable cups made to last, and everything you need to bring the fun to your own crew.
So, what's a BOU?
BOU (say it like "Bo" or "Beau") is what our group of friends have always called each other. It's our word for your crew, your people, the ones you'd call up for a lake day.
"Hey bou, grab me another drink."
"Hey bou, wanna play BOU Cup?"
That's the whole spirit of this game. BOU Cup is meant to be played with your bous, on the water, all summer long.
More than a game.
BOU Cup isn't really about the cups. It's about the day — the anchor-down, sun-on-your-back, "one more round" kind of day. Grab a partner, stand ten feet apart, and race to 21. No setup, no rulebook, no reason to check your phone. Just you, your crew, and the water.
It's the reason everyone stays a little longer, and the little rivalry that follows you from sandbar to sandbar all summer.
Built to last all summer. And the next.
We got tired of flimsy plastic that cracks after a few uses, so we made BOU Cup from heavy-duty, reusable materials built to take a beating and keep going, summer after summer. Buy it once, play it for years.
From our lake days to yours.
BOU Cup started with a group of friends, a handful of cups, and the lakes around Madison. Now it's yours. We built this so everyone can have as much fun playing as we do.
So grab a partner, call up your bous, and find out who's fastest.