Impact Robotics League
Tournament & match procedures
Eligibility, divisions, match format, how you win, pre- and post-match procedure, judging, disputes.
These rules can change. We modify them to keep events safe, fair, and fun — and we announce changes in advance. When in doubt about a borderline design, ask the event host before competition day: info@impactroboticsleague.org.
1.General tournament flow
- Check-in and robot weigh-in
- Safety inspections
- Tournament bracket finalization
- Match schedule release
- Competition rounds
- Final matches and awards ceremony
2.Team & robot eligibility
- 2.1Competitors: students in grades 6–12, or ages 12 and up. Every student competitor must have an adult supervisor onsite at all times. A student may compete on only one bot team per event.
- 2.2Robot similarity: a team may not enter more than one functionally identical robot per event. Exceptions may be made for new builders using reference or kit-based designs in beginner classes.
- 2.3Part sharing: lending common parts (motors, electronics, batteries) between teams is permitted and encouraged. Sharing custom-fabricated parts between teams during an event is prohibited.
3.Divisions & student-built expectations
- Divisions are always MS and HS: middle school (grades 6–8) and high school (grades 9–12). Brackets and awards divide on these two, every event.
- Playing up: an MS builder may choose to compete in the HS division. The choice is made at registration and holds for the whole event.
- OPEN division (select events): some events add an OPEN division for all ages — adults included — run under standard SPARC rules. Parents: this is your invitation to stop coaching and start losing to your kid in public.
- Kits, reference bots, and open-source designs are welcome for new builders in either division; experienced builders are expected to show original, student-led engineering.
- Student-built, student-operated: students perform design, construction, repairs, and driving. Adults are mentors and safety supervisors only.
- Middle school exceptions:limited adult assistance is allowed for soldering (student actively involved) and battery installation/removal (direct supervision). Everything else is the student’s.
- High school: adults should not directly work on robots under any circumstance.
- Mentor conduct: this league does not support a win-at-all-costs mentality. Behavior that undermines student ownership is inconsistent with league values.
4.Match format
- 4.1Duration: 2 minutes. Organizers may adjust for special formats (e.g. finals) and will announce it before the bracket starts.
- 4.2Winning: knockout (KO), tap-out, or judges’ decision.
- 4.3Knockout:a robot that ceases all controlled movement is counted out over 10 seconds. “Controlled translational movement” means net linear movement across the floor — spinning in place or twitching does not count.
- 4.4Tap-out: a driver may surrender at any time by raising a hand and clearly announcing it. The opponent is awarded a win by knockout.
- 4.5Post-KO attacks: further contact after a KO is declared can bring penalties or disqualification depending on severity and intent.
- 4.6Pinning: pins and corrals are limited to 10 seconds, then release; robots must be separated at least 5 seconds before a new pin.
- 4.7Un-sticks: one per robot per match, when immovably stuck on the arena or debris. Being propped against a wall is normal combat, not an un-stick.
- 4.8Arena: no pits, push-outs, or permanent hazards. Standard arenas are 4×4×2 ft with wood floors; specifications may vary by event.
- 4.9Multi-bots: allowed if combined weight ≤ 1 lb; registered and identified as a single robot at check-in.
- 4.10Judges’ decision: full-duration matches are decided on the judging criteria below.
5.Pre-match procedure
- 5.1Report to the arena when called; failure to appear within the allotted time may forfeit.
- 5.2Install the battery securely in the queuing area — before the robot is placed in the arena.
- 5.3Load in per the safety load-in procedure.
- 5.4Radio check & twitch test:a final check that robot and transmitter are powered, bound, and responsive. If the bot isn’t ready, the team may call its one allowed timeout. Staff will help with radio-binding issues.
- 5.5Drivers must listen to the referee and follow all arena commands.
6.Match procedure
- 6.1The match begins on the referee’s clear verbal or visual start signal.
- 6.2Drivers stop immediately on any stop signal.
7.Post-match procedure
- 7.1Drive functional robots to the arena door; remove per the load-out procedure.
- 7.2Remove the battery after the robot leaves the arena, before it returns to the pits.
- 7.3Clear the arena promptly and safely.
- 7.4Referees or safety officials may inspect robots for violations or damage.
- 7.5If applicable, judges review the match and announce the winner.
8.Tournament-specific rules
- 8.1Repair window & forfeits: teams are guaranteed a minimum 20-minute repair period between matches. Weight is verified on the official scale at check-in. A team not ready when called after its guaranteed repair time forfeits.
- 8.2Timeouts: each robot gets one 20-minute postponement per event, requestable any time before a match begins.
9.Judges & judging criteria
- 9.1Panel: judges plus the Head Referee — typically at least two officials, varying with event staffing.
- 9.2Criteria: Damage (who caused more significant damage), Control (superior driving and positioning), and Aggression (who took the fight to the opponent).
10.Disputes & rulings
- 10.1To contest a ruling, calmly notify the referee or event director immediately after the match.
- 10.2Decisions of the event director and judging panel are final.
11.XP, levels & progression
Robots and builders earn XP at every event; it may seed brackets, determine awards, and gate advanced parts. The XP economy, Builder Levels, robot ranks, and badge catalog are documented — with live values — at How XP, badges & ratings work. That page is generated from the same configuration the scoring engine uses, so it cannot drift from what events actually pay out.
Edition
| Date | Change |
|---|---|
| Jul 10, 2026 | Season 2026–27 relaunch baseline — supersedes the pilot-year PDF rulesets. Rulings baked in: 2-minute matches; divisions always MS and HS with MS play-up; OPEN division (all ages, standard SPARC rules) at select events; skill-division language retired. |
Notes on this edition
This page is the authoritative text. It was converted from the PDF ruleset; where the PDF contained defects, they are named here rather than fixed silently.
- The source PDF contained Division Structure twice (§3 and §10) and the XP System twice (§11 and §11 again), with the two XP sections listing different tier tables. The duplicates are removed here: divisions appear once, and XP is not restated — it lives at /about/xp, which is generated from the same configuration the scoring engine uses.
- Both XP tables in the PDF (Rookie / Veteran / Elite / Pro / Master / Legendary / Prestige) predate the league’s current Builder Levels and are superseded.