Women's World Team member Sara McMann (Lock Haven, Pa./Sunkist Kids) has won the 2000 Championship Belt Series on the Senior level in Women's freestyle wrestling.    The series is sponsored by USA Wrestling and honors the top point scorers among U.S. wrestlers, based upon actual success in competition during the year. The point system is based upon results from events on the regional, national and international levels and gives greater credit for success in the major competitions. The top point scorer in the series for each style receives a handsome plaque.  On the Senior level, a separate award is presented in men's freestyle, men's Greco-Roman and women's freestyle wrestling.    Women's champion - Sara McMann, Lock Haven, Pa. (Sunkist Kids)    McMann, who placed ninth in the World Championships at 136.5 pounds,  won the Women's Belt Series for the second straight year. She scored 533 points, placing 223 points ahead of runner-up Clarissa Chun (Kapolei, Hawaii/Missouri Valley), who also competed in the 2000 World Championships.    McMann won gold medals at the Sunkist Kids International, the Clansman International in Canada, the Dave Schultz International, the U.S. Nationals and the World Team Trials. She was named Outstanding Wrestler at the U.S. Nationals. She won a silver medal at the Pan American Championships, and bronze medals at the Klippan Cup in Sweden and the Guelph Open in Canada.    Chun was a gold medalist at the Dave Schultz International, competing at 101.25 pounds. She claimed silver medals at the Pan American Championships, the U.S. Nationals, the World Team Trials and the UM-Morris Open. Chun was a bronze medalist at the Sunkist Kids International and the Austrian Open.    2000 Women's Championship Belt Series Top Ten  1. Sara McMann, Lock Haven, Pa., Sunkist Kids, 136.5 pounds, 533 pts.  2. Clarissa Chun, Kapolei, Hawaii, Missouri Valley, 101.25 pounds, 310 pts.  3. Dominique Smalley, Iowa City, Iowa, Missouri Valley, 165.25 pounds, 296 pts.  4. Malissa Sherwood, Rocklin, Calif., Missouri Valley, 123.25 pounds, 285 pts.  5. Patricia Miranda, Saratoga, Calif., Dave Schultz WC, 112.25 pounds, 282 pts.  6. Iris Smith, Colorado Springs, Colo., Sunkist Kids, 165.25 pounds, 267 pts.  7. Julie Gonzalez, Vallejo, Calif., Peninsula Grapplers, 101.25 pounds, 264 pts.  8. Toccara Montgomery, Cleveland, Ohio, Sunkist Kids, 149.75 pounds, 262 pts.  9. Kristie Marano, Albany, N.Y., ATWA, 165.25 pounds, 258 pts.  10. Melanie Macari, Fremont, Calif., unattached, 149.75 pounds, 245 pts.    CHAMPIONSHIP BELT SERIES HISTORY  Women  1994 - Shannon Williams, Ontario, Calif., Sunkist Kids, 116.5 pounds   1995 - Tricia Saunders, Ann Arbor, Mich., Sunkist Kids, 103.5 pounds  1996 - Jackie Berube, Evanston, Ill., Wildcat WC, 125.5 pounds  1997 - Lauren Wolfe, Okemos, Mich., Michigan WC, 136.5 pounds  1998 - Stephanie Murata, Minden, Nev., Sunkist Kids, 112.25 pounds  1999 - Sara McMann, Lock Haven, Pa., Sunkist Kids, 123.25 pounds  2000 - Sara McMann, Lock Haven, Pa., Sunkist Kids, 136.5 pounds