Dohyo: Robo Sumo

Dohyo is a head-to-head robotic pushing competition that puts power, traction, control, and strategy to the test. Two remotely controlled robots face off in a circular arena, with the objective of pushing the opponent completely outside the boundary or immobilising it. With intense 2-minute matches and knockout rounds, every push, manoeuvre, and positioning decision can determine the winner. "Push. Outsmart. Dominate." Details: Category: Power Duration: 2 Hours Date: 17th October 2026 Time: TBD Venue: Guru Tegh Bahadur Institute of Technology Mode: Offline Team Size: 3–5 participants Eligibility Criteria: Open to all students. Inter-college participants allowed. Pre-requisites: Competition-ready wireless-controlled robot complying with the specifications below: Maximum weight: 8 kg Maximum dimensions: 30 × 40 × 30 cm Maximum voltage: 48V DC Control: Wireless only Operator: Single operator per match Wired control: Not permitted Emergency Stop/Kill Switch: Mandatory Event Flow: Each match will have a maximum duration of 2 minutes. A match ends immediately if a robot is completely pushed outside the arena. A robot may also win if the opponent becomes immobilised, defined as no wheel rotation for approximately 10 seconds. If neither robot wins within the time limit, the judges will determine the result based on the applicable tie-break criteria. For fewer than 7 teams, a Round Robin stage will be conducted, followed by the top 4 teams qualifying for the knockout stage. For 7–10 teams, teams will be divided into 2 groups, with the top 2 teams from each group qualifying for the knockout stage. In the knockout stage: Semifinal 1: Rank 1 vs Rank 4 Semifinal 2: Rank 2 vs Rank 3 Final: Winners of the semifinals In the group stage, points will be awarded as: Win: 3 points Draw: 1 point each Loss: 0 points Teams will be given 2 minutes of pit/repair time between rounds. A tiebreaker match will be conducted if required to determine qualification or final standings. Rules & Regulations: The robot must comply with the specified 8 kg weight, 30 × 40 × 30 cm dimensions, and 48V DC maximum voltage limits. Only wireless control is permitted. Wired control of the robot is strictly prohibited. Only one operator is permitted to control the robot during a match. Weapons, projectiles, explosives, pyrotechnics, flammable substances, high-pressure systems, or any mechanism designed to damage another robot or person are strictly prohibited. The arena will be a circular platform with a diameter of 160 cm, featuring a clearly visible boundary and a flat, stable surface. Robots must begin from their designated starting positions, approximately 20–30 cm apart, and must remain stationary until the official start signal. Both robots must be fully inside the arena before the match begins. Each robot must be equipped with a functional Emergency Stop/Kill Switch. Any intentional interference with another team's wireless control system is strictly prohibited. Robots will undergo weigh-in and verification before competition. Re-verification may be required after any in-competition repair or modification. A robot pushed completely outside the arena boundary will be declared defeated. A robot showing no wheel rotation for approximately 10 seconds may be declared immobilised and defeated. Any unsafe operation or violation of the rules may result in a warning, penalty, or disqualification at the discretion of the event officials. The decision of the event judges and marshals regarding match results, penalties, and disqualifications will be considered final.