Year-end rankings, calendar

WORLD RANKINGS

   Players with Northern California ties ranked in the top 1,000 in the world (change from last week in parentheses): 

Men

   Collin Altamirano, 20-year-old Sacramento resident -- No. 818 in singles (-1), 964 in doubles (+3).

   Bob Bryan, 37-year-old former Stanford star, part-time member of Sacramento-based California Dream in World TeamTennis in 2015 -- No. 4 in doubles (no change), unranked in singles.

   Mike Bryan, 37-year-old former Stanford star, part-time member of Dream in 2015 -- No. 5 in doubles (no change), unranked in singles.

   Bradley Klahn, 25-year-old former Stanford star -- No. 513 in singles (no change), No. 752 in doubles (-2).

   Scott Lipsky, 34-year-old former Stanford star -- No. 40 in doubles (no change).

   Mackenzie McDonald, 20-year-old resident of Piedmont in San Francisco Bay Area -- Career-high No. 371 in singles (+1), No. 547 in doubles (no change).

   Dennis Novikov, 22-year-old resident of Milpitas in San Francisco Bay Area -- No. 150 in singles (no change), No. 179 in doubles (no change).

   Sam Querrey, 28-year-old San Francisco native -- No. 59 in singles (no change), No. 38 in doubles (no change).

   Tennys Sandgren, 24-year-old member of California Dream -- No. 261 in singles (+2), No. 194 in doubles (+1).

   Matt Seeberger, 31-year-old San Francisco native and former UC Santa Cruz star -- No. 161 in doubles (no change).

   Neal Skupski, 25-year-old member of California Dream -- No. 102 in doubles (+1).
   Dmitry Tursunov, 33-year-old resident of Folsom in Sacramento area -- No. 258 in doubles (no change).

Women

   Kristie Ahn, 23-year-old former Stanford star -- No. 207 in singles (no change), No. 411 in doubles (+2).
   CiCi Bellis, 16-year-old resident of Atherton in San Francisco Bay Area -- No. 233 in singles (-2).
   Alexandra Facey, 22-year-old product of Cameron Park in Sacramento area -- No. 629 in doubles (-7). 
   Kat Facey, 22-year-old product of Cameron Park in Sacramento area -- No. 629 in doubles (-7).
   Jarmila Gajdosova, 28-year-old member of California Dream (2015) -- No. 105 in singles (no change), No. 144 in doubles (no change).
   Anabel Medina Garrigues, 33-year-old member of California Dream (2015) -- No. 32 in doubles (no change).
   Nicole Gibbs, 22-year-old former Stanford star -- No. 109 in singles (no change), career-high No. 171 in doubles (no change).
   Michaela Gordon, 16-year-old resident of Saratoga in San Francisco Bay Area -- No. 660 in singles (-1), No. 861 in doubles (+1). 
   Raquel Atawo (formerly Kops-Jones), 33-year-old San Jose resident and former Cal star -- No. 18 in doubles (no change).
   Maegan Manasse, 20-year-old Cal junior -- No. 529 in doubles (-4), No. 757 in singles (-1).
   Maria Sanchez, 26-year-old Modesto product -- No. 86 in doubles (no change), No. 193 in singles (no change).
   Carol Zhao, 20-year-old Stanford junior -- No. 193 in doubles (+1), No. 343 in singles (no change).

CALENDAR

   Through Saturday -- USTA National Winter Championships, boys and girls 18 and 16 singles and doubles, Scottsdale, Ariz.

   Through Saturday -- USTA National Winter Championships, boys and girls 14 and 12 singles and doubles, Tucson, Ariz.
   Jan. 18  (Jan. 17 in United States)-Jan. 31, 2016 -- AUSTRALIAN OPEN. 2015 champions: Novak Djokovic, Serena Williams, Simone Bolelli/Fabio Fognini, Bethanie Mattek-Sands/Lucie Safarova, Martina Hingis/Leander Paes.

   Jan. 21-31 -- Les Petits As (boys and girls 12-14), Tarbes, France.
   Jan. 22-24 -- Intercollegiate Tennis Association Kick-Off Weekend, 30 campus sites.
   Feb. 6-7, 2016 -- Fed Cup, first round, United States vs. Poland in World Group II, Kailua Kona, Hawaii.

   Feb. 5-8, 2016 -- Intercollegiate Tennis Association National Women's Team Indoor Championships, Madison, Wis.

   Feb. 12-15, 2016 -- Intercollegiate Tennis Association National Men's Team Indoor Championships, Charlottesville, Va.

   March 4-6, 2016 -- Davis Cup, first round, United States at Australia.

   March 7-20, 2016 -- BNP Paribas Open, Indian Wells, Calif. 2015 champions: Novak Djokovic, Simona Halep, Vasek Pospisil/Jack Sock, Martina Hingis/Sania Mirza.
   April 2-10 -- Easter Bowl, Indian Wells.

   April 16-17 -- Fed Cup semifinals.