Nature’s Kerogen is a natural occurring high-density compound found in rock. Scarborough Downs’ Kerogen is a rock-solid trotting machine.

Friday (6/18), Kerogen once again rose to the top, claiming his fifth-consecutive victory over Scarborough’s Free-for-All stars. Kerogen hit the highway and never looked back, fronting all comers twice around the half-mile oval stopping the teletimer in a seasonal best in 1:58.4, just 1/5th of a second off of his own track record for aged stallions which he set, and then equaled, in 2008.

Kerogen has now won 53 of his 106 lifetime starts -- fully one-half -- an astounding percentage.

Owned by Lew Hayden of Pleasanton, Texas, Kerogen is handled by the husband-and-wife team of Kim and Wendy Ireland. He is the two-time defending State-of-Maine Trotter of the Year and appears hell-bent on securing his third consecutive trotting crown.

In other track news: The $15,000 the final of The Rising Star Pacing Series takes center stage Saturday afternoon at the Downs; the richest event thus far on the State of Maine harness racing scene. Post time 4 pm. Sunday, Father’s Day, features a special chicken BBQ out on the apron for $6.95 and a free gift for Dads. Post time: 1:30 pm.