--- title: [V1] Add participant belt size description: Learn how to add belt sizes in MyStudio Classic (V1) to better manage participants, track belt orders, and prepare for testing events. --- [Skip to content](https://help.mystudio.io/v1-how-to-add-belt-sizes#main-content) English Show submenu for translations [![MS\_appicon-2](https://help.mystudio.io/hs-fs/hubfs/MS_appicon-2.webp?width=63&height=63&name=MS_appicon-2.webp)](https://help.mystudio.io/?hsLang=en) Open main navigation Close main navigation - English Show submenu for translations - [Go to mystudio.io](https://www.mystudio.io/) [Go to mystudio.io](https://www.mystudio.io/) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://help.mystudio.io/?hsLang=en) 2. [Classic Version \[V1\]](https://help.mystudio.io/classic-version-v1?hsLang=en) 3. [Participant Management](https://help.mystudio.io/classic-version-v1?hsLang=en#participant-management) # \[V1\] Add participant belt size ## Easily track and manage participant belt sizes for orders, testing events, and rank promotions. ###### Updated: December 23, 2025 ### Table of contents - [Overview](https://help.mystudio.io/v1-how-to-add-belt-sizes#overview) - [Why put in belt sizes](https://help.mystudio.io/v1-how-to-add-belt-sizes#why-put-in-belt-sizes) - [How to add belt sizes](https://help.mystudio.io/v1-how-to-add-belt-sizes#how-to-add-belt-sizes) - [Frequently asked questions (FAQs)](https://help.mystudio.io/v1-how-to-add-belt-sizes#Frequently-asked-questions) - [Can I add multiple participants' belt sizes at once?](https://help.mystudio.io/v1-how-to-add-belt-sizes#FAQ-add-multiple-at-once) - [What if a participant does not have a known belt size?](https://help.mystudio.io/v1-how-to-add-belt-sizes#FAQ-participant-size-unknown) - [What do the belt size options (0000 to 10) mean?](https://help.mystudio.io/v1-how-to-add-belt-sizes#FAQ-belt-size-mean) - [Can I edit a belt size after it has been saved?](https://help.mystudio.io/v1-how-to-add-belt-sizes#FAQ-edit-belt-size-after-save) - [How does this help with testing events in V2?](https://help.mystudio.io/v1-how-to-add-belt-sizes#FAQ-help-with-testing-events) - [Learn more](https://help.mystudio.io/v1-how-to-add-belt-sizes#Learn-more) - [Was this article helpful?](https://help.mystudio.io/v1-how-to-add-belt-sizes#was-this-article-helpful)   --- ### Overview There is a new belt size section in MyStudio Classic (V1) designed for better tracking and participant management. This dedicated field for participants allows you to record participant belt sizes with preselected options ranging from 0000 to 10, making it faster and easier to keep participant records accurate and organized.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) ---   ### Why put in belt sizes Adding belt sizes helps your studio: - Keep track of which belts to order. - Prepare for testing events and rank promotions (especially in V2), where you’ll need to collect the number of belt colors and sizes for each participant.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) ---   ### How to add belt sizes 1. Login to [MyStudio V1](https://cp.mystudio.io/). 2. Go to ![All Customers Icon](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20Icons/All%20Customers%20Icon.png?width=18&height=15&name=All%20Customers%20Icon.png) “All Customers." ![All Customers](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20-%20All%20Customers/V1%20-%20Adding%20Belt%20Sizes/All%20Customers.png?width=513&height=585&name=All%20Customers.png) 3. Click on “Primary Customers." ![Primary Customers](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20-%20All%20Customers/V1%20-%20Adding%20Belt%20Sizes/Primary%20Customers.png?width=602&height=585&name=Primary%20Customers.png) 4. Select the primary customer whose participants you want to edit. 5. Find “Participants” to see a list of participant(s) under the primary customer. ![Participants](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20-%20All%20Customers/V1%20-%20Adding%20Belt%20Sizes/Participants.png?width=627&height=308&name=Participants.png) 6. Click the edit pencil to add or update a participant's name, date of birth, gender, and/or belt size. ![Click Edit Pencil](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20-%20All%20Customers/V1%20-%20Adding%20Belt%20Sizes/Click%20Edit%20Pencil.png?width=627&height=308&name=Click%20Edit%20Pencil.png) ![Pop Up](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20-%20All%20Customers/V1%20-%20Adding%20Belt%20Sizes/Pop%20Up.png?width=260&height=430&name=Pop%20Up.png) 7. Click the box below "belt size" and select the correct size from the dropdown. Options range from 0000 to 10. ![Add Belt Sizes](https://help.mystudio.io/hs-fs/hubfs/Knowledge%20Base%20Article%20Screenshots/V1/V1%20-%20All%20Customers/V1%20-%20Adding%20Belt%20Sizes/Add%20Belt%20Sizes.png?width=260&height=530&name=Add%20Belt%20Sizes.png) 8. Click “update details."   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) --- ### Frequently asked questions (FAQs)   #### Can I add multiple participants’ belt sizes at once? No, belt sizes must currently be added individually under each primary customer account.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) --- #### What if a participant does not have a known belt size? Leave the field blank or update it once the information is available. You can also select "unknown" from the dropdown if the size is not yet known.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) --- #### What do the belt size options (0000 to 10) mean? These options represent standard belt sizes used by martial arts programs, with 0000 being the smallest size and 10 being the largest.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) --- #### Can I edit a belt size after it has been saved? Yes, you can update a participant’s belt size at any time by following the same steps under their primary customer profile.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) --- #### How does this help with testing events in V2? Recording belt sizes accurately allows you to calculate the number of belts needed by color and size, simplifying preparation for testing events and rank promotions.   [^ Back to top](https://help.mystudio.io/v1-how-to-add-belt-sizes#TABLE) --- ### Learn more If you would like to learn more about the importance of belt sizes for testing in V2, click here:[V2 Belt Testing Preparation](https://help.mystudio.io/v2-belt-testing-preparation?hsLang=en). 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