Olympic leaders made two roster changes yesterday for the 2012 London Games: Track cycling's signature endurance race is out and tennis mixed doubles is in.

The International Olympic Committee executive board in Lausanne, Switzerland agreed to a program of five men's and five women's track cycling events as part of a plan proposed by cycling's governing body. As a result, the Olympics will lose track cycling's 4,000-meter individual pursuit for men and 3,000-meter pursuit for women.

Cycling had seven track events for men and three for women at the 2008 Beijing Games. Yesterday's changes were designed to make sure male and females compete in an equal number of events in London.

The number of women track cyclists in London will rise to 84, up from 35 in Beijing in 2008. Women will make up 45 percent of the total number of Olympic track cyclists, compared with 19 percent in Beijing.

Mixed doubles was played at several Olympics from 1900 to 1924. The last gold medalists were Americans Richard Williams and Hazel Wightman in Paris in 1924. Tennis was dropped from the Olympics after 1924 but returned as a medal event in 1988 without mixed doubles.

BOWLING

NEW PINFALL RECORD

Michael Machuga rolled a perfect game and broke the Professional Bowlers Association's 32-game scoring record to take the fourth-round lead last night in the Pepsi Red, White and Blue Open at Wichita, Kan.

The 33-year-old Machuga, from Erie, Pa., averaged 250.50 for 32 games, posting an actual total of 8,016 pins to break the PBA record of 7,940 set by Parker Bohn III in Japan in 1999.

Machuga's bonus pins after posting a 5-3 record in match play, gave him a total of 8,166 pins and a 67-pin lead over Patrick Allen of Wesley Chapel, Fla.

AND WHAT'S MORE ...

The Washington Nationals say there will be a news conference at their stadium today, when they're expected to announce the signing of free agent Ivan Rodriguez. The 38-year-old catcher agreed this week to a $6 million, two-year contract, pending a physical. ... Spain Davis Cup captain and former French Open winner Albert Costa, 34, was admitted to a hospital near Barcelona after complaining of heart palpitations, chest pains and hypertension, the Spanish tennis federation said. He was released hours later and was at home resting. ... Former top-ranked player Dinara Safina has withdrawn from next month's Brisbane International tennis tournament because of a bad back, leaving her status for the Australian Open in doubt.