UBRobotics competition
Sumobot
Build a robot with your team and compete in the sumo ring.
Sumobot 2026
Team registration and the parts shop require an eligible society account.
Competition rules
Core Rules
- The sumobot must fit within a 200x200mm square
- The maximum weight for the sumobot is 750g
- Only actuators and batteries obtained through UBRobotics may be used
- Members are free to use their own non-restricted components, radio systems, structural material, LEDs, etc.
- UBRobotics reserves the right to exclude any sumobot deemed dangerous
Base Parts Provided
- 2x TT Motors
- 1x SG90 Servo
- 1x MX1508 Motor Driver
- 1x Breadboard
- 1x UBRobotics Brand ESP32 Microcontroller
- 5x NiMH AA Batteries
- 10x Battery Tabs
- Additional wires, bolts, and acrylic sheeting are also provided
During the Competition
- Sumobots will fight 1v1 on an elevated plywood and acrylic platform acting as the arena (900 x 900 mm)
- The sumobot team to leave the arena loses
- A sumobot incapable of motion will be counted out within 10 seconds unless you can display control
- Matches are limited to 2 minutes maximum. In the event that neither sumobot is eliminated within the time limit, the winner will be determined by judicial decision
- If your sumobot is not operational or you are not ready in time for your scheduled match, you will have been considered to have forfeited the match
Teams
- Teams will have 3-6 members
- Late joiners or members without a team may be assigned to smaller, already established teams