Newton, who connected on 11 of 21 attempts, was outclassed on many throws by the more accurate Christian Ponder (Florida State), who threw directly after Newton during the drills.
As for the legs of the 6-6, 248-pounder, Newton ran a 4.59 40-yard dash, and his vertical leap was 35 inches. His 10 1/2-foot broad jump tied for tops among all quarterbacks. Virginia Tech's Tyrod Taylor had the best 40 among QBs (4.51).
Washington's Jake Locker also ran a 4.59 but, more importantly, displayed progress with his sometimes scattershot (but strong) arm in drills, throwing "extremely well with accuracy," according to NFL Network chief draft analyst Mike Mayock.
Arkansas QB Ryan Mallett was quite impressive throwing as well -- especially deep -- which will stir debate over his stock given his off-field question marks. NFLDraftScout.com senior draft analyst Rob Rang said Mallett was the "unquestioned star" among the first group of quarterbacks to throw Sunday.
"Mallett threw the hell out of the ball, and I knew he would," said Mayock.
Missouri QB Blaine Gabbert, the No. 1 signal caller in some quarters, opted not to throw; he did run a 4.63 40-yard dash.