NEW HAVEN, May 20--The Yale track dynasty fell here today, as a fired-up Crimson team ended three years of frustration with a glorious 73-67 victory. Two full-scale miracles, one engineered by Mark Mullin, Fred Howard, and Chris Schumacher, and the other by Marty Beckwith, put the varsity over the top.

It was a bitter defeat for the Bulldogs, A indoor and Heptagonal indoor and door champions, and for Jim Stack Tommy Carroll, the two Yale seniors n whom coach Bob Giegengack had it his dynasty.

Miracle number one was the defeat of . For three years, at the SSO or the , Carroll had never lost in his specialty to a Crimson performer. When the started today, the meet was running about according to expectations--the had a chance to do slightly than expected, but it was still going lose.

Paced by Chris Ohiri, who set a broad Jump record at 23 ft., in., triple winner Jack Spitzberg, and double victor Eddle Meehan, the whipped Yale, 75 to 65.

Schumacher set a blistering early pace, through the first 440 in 54.0. stayed within two steps of Schumacher, and passed him at the quarter . With 300 yards to go, Carroll and began to move.

But Carroll couldn't stay with the de-mined Mullin, and, when the Crimson went up to challenge Howard, Car- settled back into fourth place. With to go, a thoroughly distressed Carroll Schumacher, but he was out the race. Mullin and Howard staged a battle to the wire, with Mullin by a yard in 1:52.3.

Varsity coach Bill McCurdy's decision but Mullin in the 880 only 50 minutes after his victory over Yale's Bobby Mack in the mile was a master stroke--and one that had been planned all spring.

Mullin's fight with Mack in the meet's opening event was crucial in setting the tone of the afternoon, as well as for what it did to the point score. Mullin kept two steps ahead of Mack through a 2:04.0 880, but the little Yalie took the lead shortly before the three-quarter pole. With 300 yards left, Mullin passed Mack, but the persistent Bulldog drew even with 90 to go.

In a repent of their stretch battle in the Heps, Mullin and Mack both drove for the tape. Mack broke with 20 yards left, and Mullin was first in 4:09.5, a meet record. Mullin covered the last quarter mile in 58.0. Ed Hamlin took third for the Crimson.

Miracle number two was Beckwith's victory in the high jump. Bill Flippin, one of Yale's 6 ft., 6 in. jumpers, was unable to compete in this event, but Sam Streibert, the other, stood ready to crush Beckwith. Streibert blanched noticeably when Beckwith cleared 6 ft., 3 in., and collapsed when Beckwith soared cleanly over 6 ft., 4 in., for first place and a Harvard record.

The Crimson's Tom Blodgett, in his last Yale meet, was superb. He tied Bulldog Jim Axtell for first in the broad jump at 23 ft., took second in the high hurdles in a packed field at 14.4, finished second in the low hurdles in 23.5, and captured the pole vault from his long-time rival, Oakley Andrews of Yale, at 13 ft., 11 in.

In the shot put, Sarge Nichols brightened an injury-blighted year by taking back his Harvard mark with a 53 ft., 10 1/3 in. heave, as the Crimson swept the event. The varsity also went one-two-three in the hammer throw, with Stan Doten setting a meet record of 196 feet.

Jay Luck of Yale established two meet marks as he won three events. Luck took the 100 in 9.7 and the low hurdles in 23.2 for his records. His 14.2 in the high hurdles was disallowed because of a following wind. Bulldog Henry Hallas set a meet record with a toss of 224 ft., 4 in. in the javelin.

When Blodgett cleared 13 ft., 11 in., the jubilant Crimson team hoisted McCurdy and assistants Ed Stowell and Roger Robinson to their shoulders and paraded them in front of the stands. Thus ended an undefeated dual-meet season for the squad that was, despite a dismal Heptagonal showing, the greatest Harvard track team of all time.