BOXING—Unbeaten Heavyweight BUSTER MATHIS boosted his victory streak to 21 when he knocked out Ron Marsh, former University of Kansas football guard, in the fourth round of a scheduled 10-rounder in New York's Madison Square Garden.
Chartchai Chionoi of Thailand retained his world flyweight championship with a seventh-round TKO over Scotland's Walter McGowan in a title bout in London.
FOOTBALL—NFL: BALTIMORE defeated Philadelphia 38-6 as Johnny Unitas tossed two touchdown passes to Willie Richardson (page 14), boosting his lifetime passing yardage over the 30,000 mark. Bart Starr had five passes intercepted, and Jim Grabowski fumbled three times (all were recovered by the Bears), but GREEN BAY defeated Chicago 13-10 when Don Chandler booted a 46-yard field goal with only 63 seconds left in the game. ST. LOUIS rode the toe of Jim Bakken to a stunning 28-14 upset of Pittsburgh as Bakken set a league record with seven field goals (18, 24, 33, 29, 24, 32 and 23 yards). His total broke the mark (six) set by Detroit's Garo Yepremian last season, and when Bakken missed from the 50-and 45-yard lines he set another record for attempts (nine) in one game. Don Meredith completed 16 of 28 passes for 243 yards and four touchdowns in leading DALLAS to a 38-24 victory over New York, while WASHINGTON defeated New Orleans 30-10 on rookie Ray McDonald's touchdown runs of one, 36 and 15 yards. LOS ANGELES crushed Minnesota 39-3 as Bruce Gossett booted three field goals and the Rams' tight defense limited the Vikings to exactly zero yards rushing in the first half. With John Brodie tossing two TD passes and Gary Lewis running for two other touchdowns, SAN FRANCISCO easily beat Atlanta 38-7. After trailing 14-10 at half time, DETROIT scored 21 points in the last half to whip winless Cleveland 31-14.
AFL: Joe Namath completed 22 of 37 passes for 399 yards and two touchdowns and Emerson Boozer ran for three more TDs to lift NEW YORK to a 38-24 come-from-behind victory over Denver. The Jets had trailed 24-7 midway through the second period before Namath took charge. BOSTON won its first game after three losses by shutting out Buffalo 23-0 on the power running of Jim Nance (34 carries for 185 yards). It was the first time the Bills had failed to score in 142 games. KANSAS CITY also had an easy time of it as the Chiefs shut out Miami 24-0. Lance Alworth caught 10 passes for 121 yards from John Hadl, including a 44-yarder for a TD in the fourth period, to lead SAN DIEGO to a 13-3 victory over Houston.
GOLF—ARNOLD PALMER shot a final-round 3-under-par 69 for a 72-hole total of 283 to take the $150,000 Thunderbird Classic in Upper Montclair, N.J. by one stroke over Jack Nicklaus, Art Wall Jr. and Charles Coody, all tied for second. The victory, Palmer's fourth of the year, boosted his official PGA season earnings to a record $182,393.96 and moved him ahead of Nicklaus, who dropped to second with $168,998.08.
HARNESS RACING—BEST OF ALL ($5.80, $3.40), driven by Jim Hackett, earned Owner Samuel Huttenbauer first-place money of $42,954 when he defeated Nardins Byrd in two of three heats in the one-mile $84,778 Little Brown Jug—the second leg of the Triple Crown of pacing—at Delaware ( Ohio) County Fairgrounds (page 64).
Vernon Dancer drove Merrydell Farm's LANA HANOVER ($5.60) to a nose victory over Jamies Beauty in the one-mile $35,540 Lady Suffolk Trot—the filly division of the Dexter Cup—at Roosevelt Raceway.
HORSE RACING—CAPTAIN'S GIG ($8.80) of the Cain Hoy Stables scored his third win in four starts and set a track record of 1:15[4/5] when Jockey Willie Shoemaker guided him to a three-length victory over Ogden Phipps's Vitriolic in the 6�-furlong $146,220 Futurity Stakes for 2-year-olds at Aqueduct.
Robert Lehman's FLIT-TO ($40.20), with Hedley Woodhouse up, ran a track record 1:54 to beat Assagai, last year's winner and national grass champion, by a neck in the 1[3/16] mile $100,000 United Nations Handicap at Atlantic City. The victory, only Flit-to's fourth in 15 starts, almost doubled his previous career earnings of $66,002.
MOTOR SPORTS—Grand Prix Formula I leader DENIS HULME of New Zealand drove his McLaren-Chevrolet to an average 105.93 mph, despite a flat tire on the next-to-last lap, for his third consecutive Canadian-American Challenge Cup victory, defeating countryman Bruce McLaren by 35.4 seconds at Mosport, Ont. (page 70).