Two Day Event

Three sessions over two days.
Limited Competitor Spots.

More Than Climbing

Mechanical Bull, Mobile Ninja Warrior Course, Slackline and more…


Great prizes for Raffles, Costume Contest and the Flashacre Comp…

Flashacre 2021

inSPIRE Rock is excited to be continuing a Houston climbing tradition and happy to announce that the 10th Annual Flashacre is coming October 29th – 30th, 2021. Join us for two days of bouldering, competition, food, drink, gear sale and fun

There is a limited number of competitor spots so make sure to get signed up early to be guaranteed a spot.

Based on the great turnout at last year’s Flashacre, we’ve upped our game and added a Friday night qualifier session on top of our 2 Saturday qualifier sessions for this year’s event. The top competitors from each category will be invited to compete in Finals the evening of the 30th. Categories include beginner, intermediate and advanced for both Adult male and female competitors. This year we will also be adding a youth category. This category is for everyone ages 15 and younger and will not include a final. Prizes will still be awarded to the top 3 competitors in the youth category.

All competitors will receive a t-shirt, included in price of registration.


  • BBQ Dinner
  • Mechanical Bull
  • Raffle Prizes – must be present to win
  • Beer & Drinks (Age Appropriate)
  • Mobile Ninja Warrior Course
  • Cornhole, slackline, yard games etc.
  • Gear Sale
  • E-Skateboards and Onewheel demo and course
  • Costume Contest


2021/10/29 18:15:00


$50 Competitors (Limited Edition Flashacre shirt included)
$20 T-Shirt Only – Limited Edition Flashacre Shirt
$10 Spectator and Party Access

  • Finals spectating access
  • Food and Drink

October 29th
Session 1 Qualifiers

  • 6:15pm – 6:45pm: Competitor Check-In
  • 6:45pm – 7:00pm: Rules Meeting
  • 7:00pm – 9:30pm: Climbing Session 1

October 30th
Session 2 Qualifiers

  • 7:15am – 7:45am: Competitor Check-In
  • 7:45am – 8:00am: Rules Meeting
  • 8:00am – 10:30am: Climbing Session 2

Session 3 Qualifiers

  • 10:15am – 10:45am: Competitor Check-In
  • 10:45am – 11:00am: Rules Meeting
  • 11:00am – 1:30pm: Climbing Session 3

Food, Drink, Gear Sale, Local Vendor Booths

  • 2:00pm – 5:00pm

Finals for Adult Beginner, Intermediate and Advanced categories

  • 5:00pm – Finals begin



  • How Much Does It Cost?

    $50 Competitors (Limited Edition Flashacre shirt included)
    $20 T-Shirt Only – Limited Edition Flashacre Shirt
    $10 Spectator and Party Access

  • Can I bring friends?

    Yes. While we like to think everyone is friends at inSPIRE, or they make friends when they are here, bring everyone, climbers and beginners alike. Please note, that your friend will also need a ticket.

  • Should we dress up in costume?

    Costumes are welcome, and there will be a costume contest in 2021!