Dorian Scott has set a new national record in shot put.

Commonwealth Games shot put silver medallist Dorian Scott was at his best last weekend at the Florida State University Relays, establishing a new national record.

Scott, who entered unattached, threw the shot put 20.52 metres to beat his previous record of 20.33m, finishing ahead of the Louisiana State University pair of John Fallone (16.65m) and Travis Whitfield (15.27m).

This is the fourth time in two years that Scott has broken the national record. The Central America and Caribbean Champions-hips goldmedallist, broke the national record at last June's National Championships, throwing 20.33m to beat the mark of 20.21m he carried into the year.

Scott, 24, ended the world ranked 33rd in 2006.

The 24-year-old also had distances of 20.21 for first place at a meet in Orlando, Florida, and 20.21m for fifth at the World Cup in Athens.

Scott also holds the national indoor record with 20.49m.