Yes, you will enter your winnings despite you did not receive a Form 1099-MISC.
You can report your winnings on Schedule 1 Form 1040 line 8 other income. To enter the income follow these steps:
1. Sign into your account, select Take me to my return
2. In search box- type in " other reportable income", and Enter
3. On screen, "Other Wages Received", answer Yes / continue to follow prompts
4. On screen, "Any Other Earned Income", answer Yes
5. On screen, "Enter Source of Other Earned Income". answer Other
6. On screen, "Any Other Earned Income", enter description and amount.
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