Apr 13-15, 2018

GT Sports Marketing Houston Show



Card Grading


On-Site Autograph


Accepting Take-Home Submission

Unopened Packs

$8 Astros/Rangers Autograph Authentication Special 

Any Astros or Rangers single-signed item (past or present) can be submitted for authentication for only $8. This special includes both previously signed items and items signed on-site at the show. Valid for onsite submissions only and for Astros/Rangers signed memorabilia only. 

$8 Show Signer Special

$8 for all show-signed autographs. Offer only valid for single-signed items. Must show proof of purchase and that signatures was obtained on-site. 

PSA/DNA autograph authentication will be processed on-site concluding approximately two hours prior to the show’s closing. Turnaround varies with demand; two hour service is available for an additional fee. Letters of Authenticity will be issued by mail within two weeks after the completion of the show. Customer Service will be accepting take home submissions for PSA grading services and PSA/DNA autograph encapsulation service, return shipping is required.

Date & Time

April 13-15, 2018


Friday - 5:00 pm - 9:00 pm

Saturday - 9:00 am - 4:30 pm

Sunday - 10:00 am - 4:00 pm


Bayou City Event Center
9401 Knight Rd.
Houston, TX 77045
Map | Website

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Show Location

GT Sports Marketing Houston Show
Bayou City Event Center
9401 Knight Rd., Houston TX, 77045 United States of America

Frequently Asked Questions

On-site grading means PSA experts will be authenticating and grading trading cards on-site at the show.

On-site Autograph Authentication means PSA/DNA experts will be authenticating autographs on-site at the show.

Take-home submissions are accepted at the show and brought back to our offices for processing. Once completed, we then ship the submission back to you. For this reason, return shipping charges are required.

PSA accepts the following for take-home submission with completed online submission forms:

  • Trading Cards
  • Autographed Trading Cards for Dual Service
  • Tickets
  • Unopened Packs

Please note that you must complete an online submission center submission form in advance of the show in order for your submission to be accepted for the above services.

PSA no longer accepts paper carbon copy submission forms.

PSA will accept the following using forms secured at the show from our staff:

Want to get a head start?

Complete and print the appropriate submission form for any of the above services in advance and bring it to the show.

Two-hour express Service is our PSA/DNA Express Service or expedited processing service; for an additional cost, you can pay to have your autograph authentication order processed on-site and receive it back in approximately two hours.

PSA/DNA Express Service (Approx. 2 Hours)
1-5 Items 6-10 Items
Authentication Fee + $50 Per Order Authentication Fee + $100 Per Order

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