The Daytona 500 was a wreck-fest. "The Great American Race" had five crashes and two red flags over the final 20 laps of regulation before going into overtime, with Denny Hamlin winning. Hamlin has won his second Daytona 500 in four years.Hamlin moved out front after a final restart and had teammate Kyle Busch blocking in the final lap. Busch finished second, followed by another JGR teammate, Erik Jones. Defending Cup Series champion Joey Logano was fourth.Paul Menard triggered a 21-car accident shortly after a restart with 10 laps to go.Menard turned Matt DiBenedetto, who slammed into the wall and started a chain reaction that collected more than two dozen cars. It brought out a red flag that stopped the race for a lengthy cleanup.Menard says, "I'll take the blame for that one."Defending Daytona 500 champion Austin Dillon, Chase Elliott, Ryan Blaney, Aric Almirola and Daniel Suarez were among those involved in the mess.Almirola seemingly had the wildest ride, his back wheels getting lifted off the pavement and landing on David Ragan's windshield.Jimmie Johnson had a strange accident on pit road.Johnson was running near the front of the field and trying to pit when Cody Ware and his Rick Ware Racing teammate B.J. McLeod started a wreck that damaged Johnson's No. 48 Chevrolet.Ware and McLeod collided and started sliding across the track. They slammed into Tyler Reddick, who smashed into Johnson. Ricky Stenhouse Jr. also was involved.Johnson's car sustained significant damage to the left rear, including around the fueling area.When Hamlin was in second grade, he wrote a letter to himself wishing to win the Daytona 500.