How can I create an all-star ballot for baseball league?

You can use the Form Builder to create an online form. Here's a starter guide: https://www.jotform.com/help/2-How-to-Create-Your-First-Web-Form.

You can prevent multiple submission with the same answer using the "Unique Question" feature. Here's a guide: https://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question.

If you want to limit the submission based on the browser or IP address, then please use the "Unique Submission" feature. Here's how: https://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form.

We do have a widget called Gift Registry that will show the available option based on the previous submissions.

You may create a form reports to view current statistics, please check this guide: https://www.jotform.com/help/326-How-to-Create-Form-Reports-in-JotForm.

You might also want to check the JotPoll app, here's the link: http://www.jotpoll.com/.

Hope that helps. If you have any questions, let us know. Thank you.