Spikeball / Roundnet 101 — The Fast 2-vs-2 Outdoor Game from the USA

What is this game?

Spikeball was invented in the United States in 1989 and exploded in popularity after Spikeball Inc.'s 2008 rebrand. Its official sport name is Roundnet.

Rules feel like volleyball: four players (2 vs 2) surround a trampoline-style net on the ground and slam the ball off the net back and forth. Each team has up to three touches before they must hit the net again.

Mobility, college-campus culture, beach and lawn aesthetics — Spikeball took off in the US and has a worldwide pro circuit, with annual World Championships.

Equipment & setup

• Roundnet — ~90 cm diameter circular trampoline-style net with legs
• Ball — ~12 cm yellow inflated ball
• Open space — at least ~3 m radius. Grass, beach, or gym

Official Spikeball sets run $50–80.

Players & ages

• 2 vs 2 is standard; 3-player and 1 vs 1 variants exist
• Teen / college / adult — players move actively

Rules

Minimal rules (just play)

1. Place the net in the middle. Players stand around it; servers stand 1.8 m+ away
2. Serve: hit the ball onto the net, ricocheting toward the receiving team
3. Rally: a team has up to 3 touches to hit the net again
4. Point goes to the opponent if the ball:
   • flies off the net out of the play area / hits the ground
   • hits the net rim
   • is not returned to the net within 3 touches
5. First to 21 (win by 2) takes the match

Standard rules

• Players move 360° around the net
• Blocking with hands above the net is a foul
• Hitting the rim ends the rally as a fault

Official competition rules (SRA)

The Spikeball Roundnet Association (SRA) defines net specs, ball specs, serving rules, consecutive-touch rules, and tournament structure. The World Championship runs annually.

Tips for enjoying the game

Common beginner mistakes

• Standing still — move with the ball, expect to lunge
• Aiming for the rim — center hits only; rim = lost point
• Wasting all 3 touches — coordinated 2-touch combos are stronger

How to make it more fun

• Practice "set → spike" combos with your partner — instant competitive feel
• Beach play doubles the workout
• Compact footprint — easy to bring to a BBQ

Age variations

• Kids: higher net tension, shorter range
• Adult beginners: softer ball, focus on long rallies
• Competitive: regulation gear, tournament format

Playing Spikeball in Japan

• Original Spikeball brand sets available via Japan retailers
• Park lawns, riverside grass, and beaches all work
• The Japan Roundnet Association hosts events and tournaments

Learn more

• Spikeball Roundnet Association (SRA)
• Roundnet World Championship
• Related: beach volleyball, 4-square — fellow group outdoor ball games