You will have to report the gambling winnings on your tax return.  This would be true even if you had gone somewhere the same day and lost the money.  Your gambling losses may be deductible.  For information about deducting gambling losses see the following TurbTax article:

https://turbotax.intuit.com/tax-tips/jobs-and-career/can-you-claim-gambling-losses-on-your-taxes/L4l...