HILTON HEAD ISLAND, S.C. (AP) — Turns out only the rain can stop Masters champion Scottie Scheffler.

Scheffler holed a difficult pitch for eagle on his second hole Sunday to build some separation in the RBC Heritage and looked so flawless that it was only a matter of time.

And then he ran out of time. A storm system with heavy rain stopped play for 2 1/2 hours, and Scheffler was only able to get through 15 holes when darkness forced a Monday finish. He led by five shots with no one seriously challenging him.

“Everyone is trying to chase Scottie and he’s making it really tough because he keeps winning,” U.S. Open champion Wyndham Clark said after giving it his best effort.

Clark, who started the final round seven shots behind, opened birdie-eagle-birdie and at one point got to within one shot of Scheffler. He was 8 under through 11 holes until an adventure into the trees right of the 12th fairway led to double bogey.