Stephens cracks top 10 in year-end rankings

   Sloane Stephens cracked the top 10 in the year-end rankings for the first time in 2018.
   The 25-year-old Fresno product reached the title match in the French Open and the WTA Finals in Singapore.

   Also, Bradley Klahn (Stanford, 2010-13) returned to the top 100 in his comeback from a second back operation, and San Francisco Bay Area product Mackenzie McDonald finished in the top 100 for the first time.

   On the negative side, San Francisco native Sam Querrey plunged from No. 13 at the end of 2017 to No. 51 in the latest rankings.

   WORLD RANKINGS

   Players with Northern California ties ranked in the top 500 in the world (change from end of 2017 in parentheses):

Men's singles

   No. 51 (-38) -- Sam Querrey, 31-year-old San Francisco native.
   No. 76 (+138) -- Bradley Klahn, 28-year-old former NCAA singles champion from Stanford.
   No. 78 (+98) -- Mackenzie McDonald, 23-year-old product of Piedmont in San Francisco Bay Area.
   No. 257 (-26) -- Dennis Novikov, 25-year-old San Jose product.
   No. 310 (+450) -- Collin Altamirano, 23-year-old Sacramento native and resident.
   No. 442 (+463) -- Tom Fawcett, 23-year-old former Stanford All-American.

Men's doubles

   No. 1 (+10) -- Mike Bryan, 40-year-old former NCAA doubles champion from Stanford.
   No. 14 (-3) -- Bob Bryan, 40-year-old former NCAA singles and doubles champion from Stanford.
   No. 72 (-15) -- Sam Querrey, 31-year-old San Francisco native.
   No. 167 (-98) -- Scott Lipsky, 37-year-old former NCAA doubles runner-up from Stanford.
   No. 212 (+10) -- Bradley Klahn, 28-year-old former NCAA singles champion from Stanford.
   No. 230 (+32) -- Mackenzie McDonald, 23-year-old product of Piedmont in San Francisco Bay Area.
   No. 325 (-113) -- Dennis Novikov, 25-year-old San Jose product.
   No. 369 (+470) -- John Paul Fruttero, 37-year-old former Cal All-American.

Women's singles

   No. 6 (+7) -- Sloane Stephens, 25-year-old Fresno product.
   No. 16 (+6) -- Serena Williams, 37-year-old part-time Silicon Valley resident.
   No. 123 (-15) -- Nicole Gibbs, 25-year-old former NCAA singles and doubles champion from Stanford.
   No. 130 (-83) -- CiCi Bellis, 19-year-old San Francisco native and former Atherton resident.
   No. 200 (-94) -- Kristie Ahn, 26-year-old former Stanford All-American.
   No. 299 (-78) -- Carol Zhao, 23-year-old former NCAA singles runner-up from Stanford.
   No. 343 (-58) -- Maria Sanchez, 29-year-old Modesto product.
   No. 391 (no ranking) -- Maegan Manasse, 23-year-old former NCAA doubles runner-up from Cal.
   No. 473 (no ranking) -- Katie Volynets, 17-year-old resident of Walnut Creek in San Francisco Bay Area.

Women's doubles

   No. 27 (+7) -- Raquel Atawo (formerly Kops-Jones), 36-year-old San Jose resident and former NCAA doubles champion from Cal.
   No. 83 (+84) -- Maria Sanchez, 29-year-old Modesto product.
   No. 166 (+72) -- Nicole Gibbs, 25-year-old former NCAA singles and doubles champion from Stanford.
   No. 208 (-42) -- Sloane Stephens, 25-year-old Fresno product.
   No. 265 (+357) -- Maegan Manasse, 23-year-old former NCAA doubles runner-up from Cal.
   No. 284 (no ranking) -- Serena Williams, 37-year-old part-time Silicon Valley resident.
   No. 341 (-96) -- Carol Zhao, 23-year-old former NCAA singles runner-up from Stanford.
   No. 345 (-65) -- Kristie Ahn, 26-year-old former Stanford All-American.