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Time is TBD


Defy. Detroit


The next event in our TRAMP CHAMP Series will take place in Detroit, MI at DEFY on March 24, a fun game for young flippers age 11 - 18.

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Time & Location

Time is TBD

Defy. Detroit, 2737 Union Lake Rd, Commerce Charter Twp, MI 48382, USA

About The Event

Defy Detroit near will host their first event with GRT; one of the very popular T.R.A.M.P CHAMP Series in the U.S, sponsored by Gravitated Equations. Purchase your ticket to attend the event and come and bounce with some of the #GRTCrew - @colbyiverson_ and @camshorey77. We bring you a fun meet-up & friendly competition comprising of a game of T.R.A.M.P! Your ticket includes admission to the park from 16:00 (4 pm) - 20:00 (8 pm) a TRAMP CHAMP T-shirt supplied by Gravitated Equations, GRTCrew wristbands and Grav/GRTCrew stickers. We will also be giving out some amazing prizes, including one automatic entry to the Skybound GTGamesUS to the Overall Junior & Senior Winners of T.R.A.M.P CHAMP, to be held in Escondido, CA on June 28 - 29, 2019. We offer two age categories; 11 - 13 and 14+ will be able to compete. Travel to the GTGamesUS will NOT be included in this prize. This is not a cash prize. Get your tickets now before we sell out!!

Spectators, friends and those wishing to come and bounce but not compete must purchase a park entrance ticket from DEFY. Tickets sold here are for competitors only, limited to 36 entries. If you have any questions, please contact us here.


The game of TRAMP is similar to HORSE or Add-on where athletes try to one-up each other in a friendly game of “who can match the trick.” Each time an athlete is unable to land the skill they receive a letter. Athletes will be put into groups of 4 - 6 and assigned to a trampoline. A set time limit will be enforced to keep on schedule. Once an athlete has all the letters accumulated in TRAMP they are eliminated. The winner is the one with the least amount of letters and they move on to the next round.

Each athlete will take a turn to set the next round to ensure all athletes have a chance to set. The GRTCrew will act as judges at each trampoline will keep everyone on track as well as record letters of all athletes. Combinations of no more than 4 skills will be allowed unless agreed upon by entire group on that trampoline.

Athletes must call ‘landed’ or ‘not landed’ prior to the new set skill and as well as positions, number of bounces allowed etc. Skills deemed not landed means the athlete can land on their knees or back/rear-end. Hands touching the trampoline DO NOT count as landed.

Double Bouncing will NOT be allowed until the finals, or as determined by our judges based on skill level !

Athletes who have the least number of letters when the time is up will be declared the winner by the judge assigned to their trampoline.

Athletes are divided into junior and senior categories. You just be 11 years of age to enter and juniors will be up to age 14 as of the event date.


Saturday, May 24, 2019

4:00 - 5:00 pm - Registration for all Competitors

4:00 - 5:00 pm - Meet-up with Greg Roe & GRTCrew

5:00 - 5:30 pm - Welcome to Athletes, Introduction of Judges & Rules

5:30 - 6:30 pm - TRAMP Champ Series Competition Begins - Round 1 (Qualifiers)

6:30 - 7:30 pm - Quarter Final & Semi-Final Rounds

7:30 - 8:00 pm - Finals

8:00 - 8:30 pm - Awards

8:30 - 9:30 pm - Free Bounce Session



    This ticket includes admission to the gym from 3:00 pm - 8:30 pm on the day of the event, your entry to compete, a free TRAMP CHAMP T-shirt from Gravitated Equations & Grav/GRTCrew Wristband / Stickers

    Sale ended



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