CHARLOTTE, N.C. (WNCN) — Sunday’s running of the Coca-Cola 600 has been in question the last few days as widespread showers have impacted the region.

Saturday’s practice sessions were canceled due to the rain at Charlotte Motor Speedway, and more rain was falling Sunday morning — and the afternoon.

So what about the race Sunday night? The green flag was scheduled to drop at 6 p.m., and officials were hopeful the race would begin on time.

But, rain continued throughout the afternoon and early evening — canceling a concert by the Doobie Brothers.

Crews were brought out to dry off the track, but that wasn’t enough.

So, Coca-Cola 600 at Charlotte Motor Speedway has been postponed to Monday at 3 p.m.

Cup Series points leader William Byron will start on the pole for the Cup Series race after qualifying was rained out Saturday night.

It marks the first time the race has been moved to Memorial Day due to weather since 2009.

The Alsco Uniforms 300 at Charlotte Motor Speedway was also postponed to Monday at 11 a.m.

Meteorologist Lance Blocker says it was a very tricky forecast for the start of the race.

Temperatures will remain steady in the upper-50s to low-60s.

— The Associated Press contributed to this report