The National Dirt Late Model Hall of Fame has added online sales of 50-50 raffle tickets sold for the Castrol Gateway Dirt Nationals as the organization raises money to expand and upgrade the Union, Ky., facility.

Fans can purchase tickets in person during the Dec. 14-16 event at The Dome at America's Center in St. Louis, Mo., or online at dome5050.com (buyers must be in Missouri and sales are active). Fans can also find QR codes at the event for online purchases. Ticket are two for $10, 20 for $20, 99 for $40 or 500 tickets for $100. Last year’s winner from Dublin, Ga., collected more than $45,000 from the raffle.

Find more details at the National Dirt Late Model Hall of Fame Facebook page.