1,588 articles
Justine Henin
Justine Henin, Belgian tennis champion (born 1982, Liège), seven-time Grand Slam winner, 117 weeks as world No. 1, 2004 Olympic gold, retired No. 1 in 2008, Hall of Fame 2016.
Jwala Gutta (జ్వాలా గుట్టా)
Jwala Gutta (జ్వాలా గుట్టా), born 1983, is a retired Indian left-handed doubles badminton player from Hyderabad: 14-time national champion, world No. 6 mixed doubles with V. Diju, 2011 World Championship bronze with Ashwini Ponnappa, two Olympics, Arjuna Award 2011.
Kaitlyn Lawes
Kaitlyn Lawes, Canadian curler born 1988 in Winnipeg; two-time Olympic gold medallist, Sochi 2014 women's third for Jennifer Jones and PyeongChang 2018 inaugural mixed doubles champion with John Morris.
Kamilla Rakhimova (Камилла Станиславовна Рахимова)
Kamilla Rakhimova (Камилла Рахимова), born 2001 in Yekaterinburg, is an Uzbek tennis player, formerly Russian, career-high WTA No. 60 singles and No. 51 doubles, with two WTA 125 singles titles, five WTA doubles titles, and a 2026 US Open upset of Krejcikova.
Kane Waselenchuk
Kane Waselenchuk, "King Kane" (born 1980, Edmonton), Canadian left-handed racquetball player; record 133 IRT titles, 16 year-end No. 1 rankings, 15 US Open singles titles, 2006 two-year doping ban, 2008-09 comeback.
Karen Khachanov
Karen Khachanov, Russian tennis player born 1996, career-high ATP No. 8, 2018 Paris Masters champion over Djokovic, 2022 US Open and 2023 Australian Open semifinalist, Tokyo 2020 Olympic silver medalist.
Karolína Muchová
Karolína Muchová, Czech tennis player born 1996 in Olomouc, three-time WTA titlist (Seoul 2019, Doha and Bad Homburg 2026), Roland Garros 2023 and Wimbledon 2026 finalist, career-high No. 6.
Karolína Plíšková
Karolína Plíšková, Czech tennis player, twin sister of Kristyna Plíšková. Former world No. 1 (July 17, 2017), 17 WTA singles titles, finalist at 2016 US Open and 2021 Wimbledon; returned in 2026 after ankle surgery.
Karuê Sell
Karuê Sell (born 1993, Jaraguá do Sul) is a Brazilian ATP tennis player, career-high No. 258 (2024), six ITF/Challenger titles, UCLA alum, and creator of the My Tennis HQ YouTube coaching channel.
Kateřina Siniaková
Kateřina Siniaková (born 1996, Hradec Králové) is a Czech tennis player, WTA doubles world No. 1, with 12 Grand Slam women's doubles titles, a career Golden Slam, and Olympic golds at Tokyo 2020 and Paris 2024.
Katie Boulter
Katie Boulter, British tennis player from Leicester (born 1996), four-time WTA singles titlist (Nottingham 2023 and 2024, San Diego 2024, Ostrava 2026), career-high world No. 23, British No. 1 and Billie Jean King Cup regular.
Katie Volynets
Katie Volynets, American tennis player (born 2001, Walnut Creek, California, Ukrainian family), career-high WTA No. 56 in 2024, WTA 125 titles at Makarska 2024 and Philadelphia 2026, 2023 Australian Open third round.
Keaton Hance
Keaton Hance (born 2008, Torrance, California) is an American tennis player, 2026 Australian Open boys' singles runner-up and Roland Garros junior semifinalist, coached by Ken Hance.
Keegan Bradley
Keegan Bradley, American PGA Tour golfer from Woodstock, Vermont; 2011 PGA Championship winner in his major debut with a belly putter; eight PGA Tour wins; 2025 U.S. Ryder Cup captain at Bethpage, where Europe won 15-13.
Kei Nishikori (錦織圭)
Kei Nishikori (錦織圭), born 1989 in Shimane, Japan, is a Japanese tennis player, career-high world No. 4, 2014 US Open finalist, Rio 2016 Olympic bronze medalist, 12 ATP titles, retiring after the 2026 season.
Ken Edwards
Ken Edwards (Kenneth Paine Edwards, 1886-1952), American amateur golfer, Exmoor Country Club; won 1904 Olympic men's team golf gold for the Western Golf Association; Western Amateur medalist 1907-08, runner-up 1917.
Ken Flach
Ken Flach (Kenneth Eliot Flach, 1963-2018), American doubles world No. 1 tennis player; with Robert Seguso won 1988 Seoul Olympic gold, four Grand Slam men's doubles titles, and two mixed doubles titles.
Ken Rosewall
Ken Rosewall (born 2 November 1934, Sydney), nicknamed "Muscles", is an Australian tennis player who won 8 Grand Slam singles and 18 total major titles across amateur, professional, and Open eras, never won Wimbledon, and remains the oldest Open-era major champion at 37.
Ken Skupski
Ken Skupski is a retired British doubles tennis player from Liverpool, older brother of Neal Skupski. Seven ATP titles, career-high doubles No. 44 in 2010, 2010 Commonwealth Games silver, retired at Wimbledon 2022.
Kento Momota (桃田賢斗)
Kento Momota (桃田賢斗), Japanese left-handed men's singles badminton player, two-time world champion (2018, 2019), 121 weeks at world No. 1, record 11 titles in 2019; career marked by a 2016 casino suspension, a 2020 car crash, and 2024 retirement.
Kevin Anderson (tennis)
Kevin Anderson, South African tennis player (born Johannesburg), 2.03 m big server; career-high ATP No. 5 (July 2018), seven titles, runner-up at 2017 US Open and 2018 Wimbledon; retired 2022 with 354-253 record.
Kevin Kisner
Kevin Kisner (born 1984, Aiken, South Carolina), American PGA Tour golfer with four wins including the 2019 WGC Match Play, runner-up at the 2018 Open; now NBC lead analyst and Jupiter Links TGL player.
Kevin Koe
Kevin Koe (born 1975, Edmonton) is a Canadian curler, Calgary-based skip, four-time Brier champion (2010, 2014, 2016, 2019), two-time world champion (2010, 2016), and 2018 Olympian, distinct from skip Kevin Martin.
Kevin Na
Kevin Na, Korean-American professional golfer, turned pro at 17 in 2001, 2002 Asian Tour Rookie of the Year, five-time PGA Tour winner, Iron Heads GC LIV captain 2022-2026, then sought PGA Tour reinstatement.
Kevin Sanjaya Sukamuljo
Kevin Sanjaya Sukamuljo (born 1995, Banyuwangi) is a retired Indonesian badminton player, Minions men's doubles world No. 1 with Marcus Gideon for 272 weeks, All England and Asian Games 2018 champion, retired 2024, now a sports business executive.
Kiara Romero
Kiara Romero is an American professional golfer from San Jose, California, who won the 2023 U.S. Girls' Junior and earned her LPGA Tour card in 2026.
Kiki Bertens
Kiki Bertens, Dutch tennis player, former world No. 4 (13 May 2019), highest-ranked Dutchwoman ever; 10 WTA singles titles, Madrid 2019 and Cincinnati 2018 champion; retired after Tokyo 2020 Olympics.
Kim Clijsters
Kim Clijsters, Belgian tennis champion (born 1983, Bilzen), world No. 1 for 20 weeks, winner of four Grand Slam singles titles (US Open 2005, 2009, 2010; Australian Open 2011) and 41 singles titles, famed for comebacks as a mother.
Kingston Heath Golf Club
Kingston Heath Golf Club, Cheltenham, Melbourne Sandbelt; founded 1909 as Elsternwick GC. Dan Soutar-designed 1925 course with Alister MacKenzie bunkering and par-3 15th; nine men's Australian Opens, 2009 Tiger Woods Masters, 2026 Australian Open and 2028 Presidents Cup host.
Koki Niwa
Koki Niwa (丹羽 孝希), born 1994 in Tomakomai, Japan, is a left-handed shakehand table tennis player; 2010 Youth Olympic champion, Rio 2016 team silver and Tokyo 2020 team bronze medalist, world No. 5 in 2017.