Updated

NASCAR's longest race of the season has been postponed by rain for the first time in 50 years.

Light rain had delayed the scheduled 6:03 p.m. start in the Coca-Cola 600 on Sunday night Lowe's Motor Speedway, but the track appeared dry and NASCAR called the cars out to pit road moments before a heavy shower soaked the surface again. The heavy rain lasted less than 15 minutes, but a persistent drizzle made it impossible to dry the track.

The race will run Monday at noon, the first time it will be held on Memorial Day.

The only other time the Coca-Cola 600 was postponed was the 1960 inaugural race, when it was pushed back three weeks from its Memorial Day weekend date to June 19 because three snowstorms slowed construction on the speedway.