Wrigley Gum Field - Sandy Koufax of the Los Angeles Dodgers struck out 18 batters today and matched the modern major league mark he already shared with Bob Feller. The 26-year-old left-hander accomplished the feat in beating the Chicago Cubs, 10-2.

Koufax' effort set a record for a National League day game. The previous mark of 17, had been shared by Dizzy Dean of the St. Louis Cardinals and Art Mahaffey of the Philadelphia Phillies.

Feller struck out 18 for the Cleveland Indians in a losing day game against the Detroit Tigers on Oct. 2, 1938, and Koufax did the same against the San Francisco Giants in a night game on Aug. 31, 1959. Each game went nine innings.

The major league record for strikeouts is 19 and happened during baseball's dead ball era. It is shared by Charles Sweeney, who accomplished the feat for Providence against Boston in a National League game on June 7, 1884, and by Hugh Daily, a one-armed Chicago pitcher who tied the mark in a Union Association game against Boston on July 7th of the same year.

The Union Association was organized as a third major league in 1884. It expired after one season.

Although he weakened somewhat in the middle innings, Koufax equaled the strikeout mark on 144 pitches, including 96 strikes and 48 balls.

Koufax, who led the National League in strikeouts last year with 269, increased his total for this season (1962) to forty in thirty-two innings.

Notes: Sandy Koufax went to 3-1 for the season. Cubs starter Don Cardell fell to 0-4.

Doubles: Dodgers - Johnny Roseboro catcher... Cubs - Ron Santo 3rd Baseman and Billy Williams LF

Home Runs: Dodgers - Andy Carey 3rd Baseman, Tommy Davis LF and Duke Snider RF... Cubs - Billy Williams LF

RBI: Dodgers - Tommy Davis 4... Duke Snider 3... Willie Davis 1... Andy Carey 1... Cubs - Lou Brock CF 1... Billy Williams 1