Volleyball actions

About OpenTrain

OpenTrain is a central job board for data-labeling and AI-training roles. We gather open positions from many AI companies and labeling platforms so you can find this kind of work in one place instead of hunting across dozens of sites.

Creating an OpenTrain account is free, and applying takes only a few minutes.

About AI training and data labeling

Human labeling is how modern AI systems learn: people prepare and review examples that models train on. Tasks include annotating images and video, transcribing audio, writing and rating model outputs, and more.

This role contributes directly to making sports-action detection models more accurate by providing labeled examples of volleyball actions.

The role

You will label volleyball-game images by drawing bounding boxes around players performing specific actions and assigning the correct action label.

This is an entry-level, part-time contractor role with flexible hours (less than 20 hours per week) and is open worldwide.

• Data type: Image
• Label type: Bounding box
• Labeling software: CVAT
• Action labels: Spike, Block, Serve, Set, Receive
• Pay: $0.03 USD per label (PAY_PER_LABEL)
• Employment: Contractor, Part-time
• Experience level: Entry level
• Time requirement: Less than 20 hours/week
• Location: Worldwide

What you'll do

Follow the provided examples and draw bounding boxes around players when they perform the listed volleyball actions, then assign the correct action label.

Work directly in the CVAT labeling tool to submit labeled images according to the project's guidelines.

• Identify and box the player(s) performing each action in an image
• Assign one of the five action labels: Spike, Block, Serve, Set, Receive
• Use the provided examples as the labeling standard

Requirements

All role-specific requirements come from the project brief: this is an entry-level labeling job using CVAT to create bounding-box labels on images of volleyball actions.

The project is paid per label at the rate of $0.03 USD and accepts remote contractors worldwide.

• Familiarity or willingness to work in CVAT (training/examples will be provided)
• Able to commit up to 20 hours per week (hours are flexible and may be less)
• No country restrictions — open worldwide
• Compensation: $0.03 per label (PAY_PER_LABEL)

Who should apply

This project is a good fit for people looking for flexible, remote, entry-level annotation work — especially if you enjoy sports or visual labeling tasks.

No prior labeling experience is required; you will be expected to follow examples and the provided labeling guidelines.

• Entry-level annotators looking for part-time remote work
• People comfortable working in a browser-based annotation tool
• Anyone worldwide seeking flexible hours and per-label pay

How it works

Apply through OpenTrain (creating an account is free and the application takes only a few minutes). OpenTrain aggregates the listing so you can find this role alongside other similar projects.

If you are selected for the project you will receive access to CVAT, project guidelines, and example annotations to follow; compensation is paid per label at $0.03 USD.