Luksika Kumkhum
Luksika "Luk" Kumkhum is a Thai tennis player. She turned professional in 2011, and reached her career-high singles ranking of world No. 66 on 19 November 2018. On 16 July 2018, she peaked at No. 86 in the WTA doubles rankings.
Career
Kumkhum qualified for the 2013 Australian Open where she defeated world No. 39 Sofia Arvidsson, before losing to Jamie Hampton in the second round.Again as a qualifier at the 2013 Malaysian Open, she reached the quarterfinals, defeating Olivia Rogowska and Eleni Daniilidou en route before losing to fourth seed Ayumi Morita.
At the 2014 Australian Open, Kumkhum, ranked No. 87 in the world, caused a major upset when she eliminated former Wimbledon champion and sixth seed, Petra Kvitová, in the first round, in three sets. She lost to Mona Barthel in the second round in another three set match.
She reached her first WTA Tour doubles final at the 2017 Korea Open, partnering fellow Thai Peangtarn Plipuech, losing to top seeds Kirsten Flipkens and Johanna Larsson.
Having qualified for the 2018 Australian Open, Kumkhum progressed to the third round of a major tournament for the first time, defeating Johanna Larsson and Belinda Bencic. Her run was ended by Petra Martić.
At the 2018 Wimbledon Championships, she won her first match at the grass-court major by overcoming Bernarda Pera to set up a second round meeting with 10th seed Madison Keys which she lost in straight sets.
Kumkhum won her first WTA 125 title at the 2018 Mumbai Open, defeating Irina Khromacheva in the final. Two weeks later she clinched her second WTA 125 trophy by overcoming Sabine Lisicki in the final of the 2018 Tapei Open. As a result she moved to a career-high in the WTA rankings at world No. 66.
Six years after her first WTA Tour doubles final at the same tournament, she reached the final of the 2023 Korea Open with Peangtarn Plipuech, but they lost to Marie Bouzková and Bethanie Mattek-Sands.
Grand Slam singles performance timeline
| Tournament | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | SR | Win% | |
| Australian Open | 2R | 2R | Q1 | 1R | 1R | 3R | 1R | A | 0 / 6 | 4–6 | |
| French Open | Q2 | 1R | A | Q1 | A | 1R | 1R | A | 0 / 3 | 0–3 | |
| Wimbledon | Q1 | Q2 | Q3 | 1R | Q2 | 2R | 1R | NH | 0 / 3 | 1–3 | |
| US Open | Q1 | Q2 | Q1 | Q1 | A | A | A | A | 0 / 0 | 0–0 | |
| Win–loss | 1–1 | 1–2 | 0–0 | 0–2 | 0–1 | 3–3 | 0–3 | 0–0 | 0 / 12 | 5–12 |
WTA Tour finals
Doubles: 2 (2 runner-ups)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | |||||||||||||||||||||||||||||
| Loss | 0–1 | [2017 Korea Open – Doubles|] | Korea Open, South Korea | International | Hard |  ITF Circuit finalsSingles: 28 (18 titles, 10 runner–ups)
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