The Yale varsity eight pulled away in the second 500 meters to win the national collegiate rowing championship at East Fork State Park in Bantom, Ohio, by nearly four seconds. Cornell was second, Syracuse third and California fourth . . .

Eric Meyers and Bob Spousta of the Potomac Boat Club won the elite doubles by 2 1/2 lengths and Steve and Rob Schmitt of Potomac combined to win the intermediate doubles yesterday in the Schuylkill Navy Regatta on Fairmount Park Lake in Philadelphia.

The Vesper Boat Club of Philadelphia outrowed Potomac by several lengths in the elite four with coxswain, winning in 6:32.8. Potomac finished in 6:48. . . .

Jo Ann Grainger and Lynn Kosobucki of the Potomac River Development Centre finished in 4:22 to win the lightweight pairs in the Women's National Rowing Championships on Lake Warramaut in Kent, Conn. . . .

At the World Team Canoe and Kayak Trials on Lake Sebago, N.Y., Washington (D.C.) Canoe Club member Linda Dragan teamed with Anne Turner to win the women's K-2 race in 1:52.16. WCC members Bruce and Barry Merritt won the C-2 in 1:54.4 and Dan Schnurrenberger (WCC) and Chuck Lyda won the men's K-2 in 1:42.0.