Maker 13's River City Rumble

We will be hosting a MRCA qualifying combat robot competition at Maker 13 in Jeffersonville, IN. The event will include 1 lb (plastic antweight) 1 lb (antweight) and 3 lb (beetleweight) competitions on Saturday August 1st, 2026.

Tournament Format: 

Group Stage Followed By Single Elimination

• Group Stage: 3 rounds
• Advancement Format: “2 wins / 2 losses” system
  • 2–0: Advance early to Single Elimination (skip Round 3)
  • 0–2: Eliminated from bracket contention (skip Round 3)
  • 1–1: Compete in Round 3 to determine advancement

This allows faster advancement, fewer unnecessary matches, and gets eliminated teams back into action sooner.

Dropping from the Event

• You may withdraw during the group stage without a forfeit as long as you drop before the next round is published
• If you drop in time, you’ll simply be removed from the event

After / During Group Stage

• Single Elimination Brackets will begin once advancement is finalized
• Matchmaking will begin during Round 3, allowing earlier participation for eliminated teams and matchmaking-only competitors

Sign Ups: There are open spots for 16 plastic antweight (1 lb), 24 antweights (1 lb) and 24 beetleweight (3 lb) bots.

Date: Competition will take place on August 1, 2026, There will be a social meet and greet event Friday July 31st at 5PM.

Location: Maker 13, 629 Michigan Ave, Jeffersonville, IN 47130

Venue: Has plenty of space for pits (tables & chairs are provided). There will also be a spectator area and a couple of TVs to view the fights.

Prizes:

• TBD

Food: TBD

Sponsors: TBD

Arena: 8' x 8', painted plywood floor (subject to change)

Rough Schedule:

• 8:00am – Doors Open & Safety Opens
• 10:00am – Doors Open for Spectators and fights begin
• 5:00pm - Single Elimination Starts

Hotels: Room block at TownePlace Suites by Marriott Louisville North

Entry Fee: $20 per plastic ant, $30 per antweight and $30 per beetleweight entry.

Ruleset: This event will follow MRCA rules for ranked ant and beetle classes.  SPARC v1.6 rules will be used for plastic antweights.

Spectators:  There is no entry fee for spectators, doors open at 10am on Saturday. 

Live Stream: We will attempt to live stream the event, we will update the listing with a link.

Social Links: You can find Maker13 on Facebook, Instagram, and Youtube.

Volunteers: If you are interested in volunteering, please email Maker 13

Stay tuned for more details and feel free to email spicydisasterrobotics@gmail.com if you have any questions.  You can also join the Robot Combat Indiana Discord for more information.