AUTO RACING
Curtis Turner
, Roanoke
, Va., NASCAR
100-m. natl. championship for late convertibles, in 1957 Ford, Greenville, S.C.
Glenn Roberts, Daytona Beach
, NASCAR
150-m. Grand Natl. in 1:44.50, in 1957 Ford, Langhorne, Pa.
BOATING
Arthur Knapp
, Larchmont YC, Frostbite dinghy title, with .904; spring regatta, with 23 pts., Larchmont, N.Y.
BOXING
Johnny Holman
, 10-round decision over Ewart Potgieter, heavyweights, Portland, Ore.
Ralph (Tiger) Jones, 10-round split decision over Chico Vejar
, middleweights, Syracuse
, N.Y.
Jackie Labua, 3-round TKO over Walter Cartier, middleweights, New York
.
Davey Moore
, 10-round decision over Gil Cadilli, featherweights, Miami
.
HARNESS RACING
DOTTIE'S PICK: $19,500 California
Trot, 1 m.. by 2 lengths, in 1:59 2/5, Santa Anita.
HOCKEY
Charlotte
, over Philadelphia
, 7-0, to win Eastern Hockey League playoff, 4 games to 3, Charlotte, N.C.
HORSE RACING
HOLANDES II: $16,155 Robert O'Brien Memorial H., 1 1/16 m., by 1� lengths, in 1:42, Bay Meadows
. Ismael Valenzuela
up.
JUDO
SAC, Natl. AAU team title, Honolulu
.
POLO
Westchester
, over Chicago
, 16-10, U.S.
high-goal indoor championship, New York
.