Be the first robot to intentionally push a bottle off the table OR be the last robot remaining on the table.

Teams of up to 3 students can compete in the 2019-2020 BottleSumo Season in one of three divisions:

Senior Unlimited: 9th ~ 12th Grade: Any platform and programming language. 

Senior Classic: 9th ~ 12th Grade: LEGO EV3, LEGO NXT and VEX IQ platforms.

Junior: 5th ~ 8th Grade: LEGO EV3, LEGO NXT and VEX IQ platforms. 

Junior and Senior Classic teams will have chances to compete at various local sites, and all divisions will meet at the Robofest Online World Championship.  

This is an Open category - each event stands alone with no advancement. Winners at  local site must register again if they wish to compete at the World Championship event.  


BottleSumo Official Rules and Related Documents:

UPDATE: For the 2020 Robofest Online World Championship (ROWC) events scheduled for September 25 (Jr) and Septmber 26 (Sr Divisions), the rules have been modified to include only an expanded Time Trial portion of the competition.    

Official Rules and Related Documents:

NEW!  2020 Initial ROWC BottleSumo Time Trial rules  (PDF | PPTX)

Coming Soon - Final ROWC BottleSumo Time Trial Rules (PDF | PPT)

Coming Soon - Pre-Event Checklists for ROWC BottleSumo Location Judges (Jr Division - PDF  | Sr Divisions - PDF)

Time Trial Scoresheets

Start Information Example

Unknown Start Examples

Prior Versions of Rules and Examples of Head-to-Head Judgements:

BottleSumo Judging Examples:  Example 1-Bottle Intentional Push | Example 2-Robot Push | Example 3-"Sumocide"
Example 4- Unintentional | Example 5-Tie | Example 6-Tie  | Example 7-Fail to Start (Left Robot Loses)            
2020 Updated Final 2020 Season BottleSumo Rules - Released 2/24/2020 (PDF | PPTX)  
2020 First Official 2020 Season BotleSumo Rules - Released 1/11/2020 (PDF | PPTX
2020 US Kickoff BottleSumo Rules - Released 10/25/2019 (PDF | PPTX
2020 International BottleSumo Rules - Released 10/1/2019 (PDF | PPTX)                                                       

Rules for starting teams, registration and team responsibilities at competitions can be found in the General Rules on the 2020 Main Page.

Each team member, as well as the coach and other adult volunteers, must bring the signed Robofest Consent and Release Form on the day of the event if not completed on line.