1Weight Class
1-1. Weight class
| Class | Weight class |
|---|---|
| Minimum | Commercial products and self-made robots under 0.7 kg |
| Flyweight | Commercial products and self-made robots under 1.0 kg + minimum class standard robots |
| Bantamweight | Commercial products and self-made robots under 1.5 kg + flyweight class standard robots |
| Featherweight | Commercial products and self-made robots under 1.7 kg + bantamweight class standard robots |
| Lightweight | Commercial products and self-made robots under 2.0 kg + featherweight class standard robots |
| Middleweight | Commercial products and self-made robots 2.7 kg or less + lightweight class standard robots |
| Heavyweight | Self-made robots under 3.5 kg and middleweight robots + middleweight class standard robots |
1-1-1The weight tolerance for "robot specifications" allows a deviation of up to +3g.
1-1-2You may compete in a weight class one level higher while maintaining the robot specifications of one weight class below.
1-2. Commercial products
For other commercial products, please inquire.
| Class | Commercial products |
|---|---|
| Minimum | KKOK-DU, Meebot Etc |
| Flyweight | Withinno HURO, LINE-Core m, ROBOTIS MINI, RQ-HUNO, Alpha Mini Etc |
| Bantamweight | ROBOTIS ENGNEER MAX-E1, MF-17ST, 5720T-FMT, IRH-100, ROMANBO Etc |
| Featherweight | ROBOTIS ENGNEER MAX-E2, Tonybot, Alpha E1 Etc |
| Lightweight | STEAMCUP PREMIUM, ROBOTIS GP, TINYWAVE, TINYWAVE F, TINYWAVE AF, ROBOTIS ENGNEER MAX-E2, VH-19 IMMOTAL Etc |
| Middleweight | KHR-3HV, PLUTO, Super Anthony, MK I~III Etc |
1-2-1"Pre-made products" can participate in the corresponding weight class regardless of robot specifications. Pre-made products refer to commercially available robots in their original state. Changes such as batteries, cables, communication components and cosmetic modifications that do not alter performance are permissible. Any modifications beyond these criteria fall under the "self-made" category and must comply with the robot specifications regulations for participation.
1-3. Motor specifications
1-3-1Motor torque limit: stall torque should be within 11.1~12V, 1.4~1.5A. For other motors, please inquire.
| Class | Stall torque | Types of motors |
|---|---|---|
| Minimum | 0.3N·m or less | Kittenbot LEGO Geek, XL330-M077, JRS201 Etc |
| Flyweight | 0.6N·m or less | Including motors for minimum class and below; LSM-micro, XL-320, SAM-3, XL330-M288, SG90 Etc |
| Bantamweight | 1.5N·m or less | Including motors for flyweight class and below; AX-12A, WCK-1108T, WCK-1111T, MRS-D2009SP, IRS-430, XC330, XL430, 2XL430, 2Kg UBTECH Etc |
| Featherweight | 1.5N·m or less | Including motors for bantamweight class and below; AX-12A, WCK-1108T, WCK-1111T, MRS-D2009SP, IRS-430, XC330, XL430, 2XL430, 2Kg UBTECH Etc |
| Lightweight | 1.9N·m or less | Including motors for featherweight class and below; AX-18A, XC430, VTS-19, LX-824HV, 3Kg UBTECH Etc |
| Middleweight | 6.0N·m or less | Including motors for lightweight class and below; MX-28, MX-64, XM430, XH430, XW430, XD430, KRS-2572R2HV, JS-R7, CAS-4880, CAS-5570, CAS-6550, AX-01, IQ4516HV Etc |
| Heavyweight | 8.4N·m or less | Including motors for middleweight class and below; MX-106, XM540, XH540, XW540, XD540 Etc |
1-3-2Motors are considered the most critical components for determining weight classes; therefore, any replacement or modification of parts for performance enhancement is strictly prohibited. Such actions are deemed serious violations that severely compromise fairness.
1-3-3If the torque and speed of a motor are difficult to judge visually, the judges may request verification through firmware checks and internal inspection of the motor. Participants are expected to cooperate fully in such cases.
2Specifications Inspection
2-1. Robot specifications inspection
2-1-1All robots participating in the competition must complete the specifications inspection within the allotted time. If a robot fails to pass the inspection, it will be disqualified according to the inspection regulations.
2-1-2If changes or modifications are required after the inspection, the robot must be revised and re-inspected within the inspection time. Failure to comply will result in disqualification.
2-1-3For a prompt and accurate check, the inspection will be conducted with the power on and the robot fixed in the "inspection posture" (see the specification reference figures). Any measurement errors caused by the robot not being properly fixed are the responsibility of the participant. Controllers should be brought if necessary.
2-2. Inspection penalty
2-2-1If modifications to meet the specifications are not possible due to a participant's error, participation may be permitted within a "total sum ±10%" limit under the agreement of the judges during the inspection.
2-2-2When the above penalty applies, the participant competes with a handicap of approximately 70% or more in all matches (for battle events, 3 downs or more). In the event of a tie, the penalized participant is considered the loser without overtime.
2-2-3When the judges disapprove, or if a majority of participants object, the participant will be disqualified.
3Robot Specifications
The allowable tolerance for exceeding any robot specification length is +1mm. During the specification inspection, the robot must have its power turned on and be in the specified posture.
2-3-1Robot base platform — humanoid robots with a structure similar to humans (head, torso, arms and legs) are eligible to participate only if they meet the robot specifications regulations.
2-3-2The height of the robot is measured as the straight-line distance from the top of the head to the bottom of the feet.
2-3-3The "specification posture" height is measured when the robot is fully extended.
| Class | Height limit in the specification posture |
|---|---|
| Minimum | 300mm or less |
| Flyweight | 300mm or less |
| Bantamweight | 400mm or less |
| Featherweight | 400mm or less |
| Lightweight | 400mm or less |
| Middleweight | 470mm or less |
| Heavyweight | 500mm or less |
Chest length
2-3-4Chest length is measured as the straight-line distance between the outermost shoulder motor axes of the torso. For vertical arm structures, measure between the rotating hub and arm frame boundary; for horizontal arm structures, measure between the shoulder motor axes.
| Class | Chest length limit |
|---|---|
| Minimum | 100mm or less |
| Flyweight | 100mm or less |
| Bantamweight | 120mm or less |
| Featherweight | 120mm or less |
| Lightweight | 120mm or less |
| Middleweight | 160mm or less |
| Heavyweight | 180mm or less |
Arm length & arm span
2-3-5Arm length is measured as the straight-line distance from the shoulder axis adjacent to the chest to the fingertips, and the condition must be met in both "arms parallel" and "arms extended" postures.
2-3-6Arm span is measured as the straight-line distance across the thickest part of the robot arm.
| Class | Arm length limit | Arm span limit |
|---|---|---|
| Minimum | 160mm or less | 60mm or less |
| Flyweight | 160mm or less | 60mm or less |
| Bantamweight | 200mm or less | 60mm or less |
| Featherweight | 200mm or less | 60mm or less |
| Lightweight | 200mm or less | 60mm or less |
| Middleweight | 230mm or less | 80mm or less |
| Heavyweight | 240mm or less | 100mm or less |
Fingertips
2-3-7The fingertip size is measured as the straight-line length of the fingertip area capable of attacking opponent robots. When using grippers, each fingertip must be manufactured according to specifications, and the maximum extended size cannot exceed the arm span limit.
| Class | Fingertip length limit | Fingertip height limit | Fingertip angle limit |
|---|---|---|---|
| Minimum | 60mm or less | 30mm or less | 90° or more |
| Flyweight | 60mm or less | 30mm or less | 90° or more |
| Bantamweight | 60mm or less | 30mm or less | 90° or more |
| Featherweight | 60mm or less | 30mm or less | 90° or more |
| Lightweight | 60mm or less | 30mm or less | 90° or more |
| Middleweight | 100mm or less | 30mm or less | 90° or more |
| Heavyweight | 100mm or less | 30mm or less | 90° or more |
Upper body
2-3-8The length of the upper body is measured as the straight-line distance from the shoulder axis to the front-and-rear axis adjacent to the chest.
| Class | Upper body length limit |
|---|---|
| Minimum | 90mm or more |
| Flyweight | 90mm or more |
| Bantamweight | 100mm or more |
| Featherweight | 100mm or more |
| Lightweight | 100mm or more |
| Middleweight | 120mm or more |
| Heavyweight | 130mm or more |
Lower body & legs
2-3-9The length of the lower body is measured as the straight-line distance from the front-and-rear axis adjacent to the upper body to the bottom of the foot. For legs constructed with a linkage structure, it is measured from the top front-and-rear axis directly connected to the motor to the bottom of the foot.
| Class | Lower body length | Frontal width of the legs | Lateral width of the legs |
|---|---|---|---|
| Minimum | 110~140mm | 70mm or less | 70mm or less |
| Flyweight | 110~140mm | 70mm or less | 70mm or less |
| Bantamweight | 180~230mm | 100mm or less | 100mm or less |
| Featherweight | 180~230mm | 100mm or less | 100mm or less |
| Lightweight | 180~230mm | 100mm or less | 100mm or less |
| Middleweight | 230~270mm | 110mm or less | 110mm or less |
| Heavyweight | 270~300mm | 110mm or less | 110mm or less |
2-3-10Leg motor position — in the specification posture viewed from the front, all motors of the lower body and the soles of the feet must be positioned along the vertical axis of the pelvic motor center.
Sole of the foot
2-3-11The maximum straight-line horizontal and vertical dimensions of the portion of the foot touching the ground are measured. The sides of the sole should be designed with caution so that they do not touch the ground of the playing field during walking, attacking and defending.
| Class | Sole length limit | Sole width limit |
|---|---|---|
| Minimum | 100mm or less | 60mm or less |
| Flyweight | 100mm or less | 60mm or less |
| Bantamweight | 105mm or less | 65mm or less |
| Featherweight | 105mm or less | 65mm or less |
| Lightweight | 110mm or less | 70mm or less |
| Middleweight | 120mm or less | 75mm or less |
| Heavyweight | 130mm or less | 80mm or less |
Pelvic length & head
2-3-12Pelvic length — measured as the straight-line distance between the left and right axes of the legs adjacent to the upper body.
| Class | Pelvic length limit |
|---|---|
| Minimum | 80mm or less |
| Flyweight | 80mm or less |
| Bantamweight | 90mm or less |
| Featherweight | 90mm or less |
| Lightweight | 90mm or less |
| Middleweight | 100mm or less |
| Heavyweight | 100mm or less |
2-3-13Head size — the head is measured from the topmost end of the motor located at the chest or shoulder, whichever is higher. Minimum dimensions (W × H × D): 30 × 30 × 20mm for Minimum through Lightweight, and 30 × 30 × 30mm for Middleweight and Heavyweight.
4Manufacturing, Power & Communication
3-1. Other specifications and manufacturing conditions
3-1-1The robot must be pre-manufactured according to the specified standards and specifications for participation.
3-1-2If the robot malfunctions before the start of the match and cannot operate, repairs and parts replacement are allowed within 2 minutes, subject to the referee's decision.
3-1-3Robot surface — the fingertips must not use un-anodized (electrically conductive) components and must not have sharp or pointed edges that can scratch human skin. Joints in the fingertips or folding joints must be rounded and maintained in a rounded shape throughout the match. If adhesive materials are used on the fingertips, they must be removable without damaging either the adhesive or the paper when an A4 sheet is attached and removed.
Other robot restrictions — robots with sharp or pointed parts, knives, saw blades, high-speed rotating devices, lasers, electric shocks, adhesive structures, launching mechanisms, or those using water or fire are not allowed to participate. Robots that cause excessive damage to people, opposing robots, or the arena beyond what is necessary are also prohibited. (3-1-4)
3-2. Power specifications
3-2-1All batteries conforming to internationally recognized safety standards are permissible. However, the use of AC voltage, liquid fuels and combustion engines is prohibited for safety reasons.
3-2-2The use of personally assembled or modified batteries, as well as non-commercialized power sources, is prohibited.
3-2-3For the safety of participants, the use of inflated (swollen) batteries is strictly prohibited.
3-2-4The battery must be securely placed in the safest position within the robot's upper body. It must not be located in any part of the robot's lower body, even partially (battery cables excepted).
3-2-5The battery installed in the robot must be covered with a safety cover to prevent damage, and the cover should be designed for easy removal if necessary.
3-2-6In case of any issues with the battery installed in the robot, for safety reasons the robot may be immediately removed from the venue and disposed of, and the participant is responsible for any consequences arising from this action.
3-2-7When charging and storing batteries, it is mandatory to use a "Li-Po Guard Safe Bag."
3-2-8If separate charging is necessary within the arena, it must be conducted under the supervision of a guardian. Only chargers equipped with a balance-charging function may be used, and charging must be done at a slow rate of 1A or below. It is strictly prohibited to charge batteries within the arena or accommodation facilities in violation of these rules.
3-2-9Battery charging is only permitted at designated locations, and charging on the floor is strictly prohibited. When charging on a desk, it is mandatory to pack the battery in a Li-Po Guard Safe Bag with at least two layers of protection. All participants are strongly advised to wear safety goggles during this process.
3-2-10Robots that violate the power specifications cannot participate. The participant is responsible for all damages and recovery efforts resulting from failure to comply with the above regulations.
3-3. Communication specifications
3-3-1All wireless communication methods except wired communication are allowed. However, intentional interference with the operation of opponents through communication is strictly prohibited.
5Disqualification Regulations
4-1-1Participating in a match using another participant's robot.
4-1-2Refusing to comply with referee instructions or decisions.
4-1-3Violations of the robot specifications during the match.
4-1-4Leaving the arena or designated waiting area without permission from the referee.
4-1-5Using profanity or engaging in violent behavior.
4-1-6Engaging in any unsportsmanlike behavior or actions that disrupt the course of the match.
4-1-7Being unable to participate even after all other participants' matches have concluded.
4-1-8If a participant is disqualified, their performance in the match will not be recognized.
4-1-9If a team or participant is disqualified or intentionally undermines fairness, the IREA reserves the right to permanently revoke their eligibility to participate in IREA-sanctioned tournaments through a council meeting.
※ The regulations for this competition may be subject to future revisions. Please check periodically for updates.
Inquiries
Please send inquiries to robot-league@naver.com or contact the association representative, Daewon LEE, on WhatsApp at +82 10 2604 3782.