- How old is Kei Nishikori?
- Kei Nishikori is 36 years old, born on December 29, 1989.
- Which country does Kei Nishikori represent?
- Kei Nishikori represents Japan in TennisDB's ATP records.
- How tall is Kei Nishikori?
- Kei Nishikori is 178 cm / 5'10".
- Does Kei Nishikori use a one-handed or two-handed backhand?
- Kei Nishikori uses a two-handed backhand.
- Is Kei Nishikori left-handed or right-handed?
- Kei Nishikori plays right-handed.
- How many Grand Slam singles titles has Kei Nishikori won?
- Kei Nishikori has not won a Grand Slam singles title.
- How many Masters 1000 titles has Kei Nishikori won?
- TennisDB does not group any of Kei Nishikori's titles under the modern Masters 1000 category.
- How many ATP titles has Kei Nishikori won?
- Kei Nishikori has won 12 ATP singles titles across all categories. The most recent was Brisbane International Presented by ANZ in 2019.
- What is Kei Nishikori's highest ATP ranking?
- Kei Nishikori's career-high ATP singles ranking is world No. 4, first achieved on March 2, 2015.
- What is Kei Nishikori's career win-loss record?
- Kei Nishikori has a career ATP singles record of 436 wins and 232 losses (65.3%).
- How much career prize money has Kei Nishikori earned?
- Kei Nishikori has earned at least $26,161,710 in career prize money from professional tennis.
- What turned-professional year does TennisDB record for Kei Nishikori?
- TennisDB records 2007 as Kei Nishikori's turned-professional year.
- Which seasons of Kei Nishikori's career appear in TennisDB?
- Kei Nishikori appears in TennisDB's ATP main-tour match records from 2007 through 2026.
- On which surface does Kei Nishikori have the highest recorded win rate?
- Among surfaces with at least 20 recorded matches, Kei Nishikori's highest ATP main-draw win rate is on clay: 66.9% (107–53).
- Who has Kei Nishikori faced most often?
- Kei Nishikori's most frequent opponent is Novak Djokovic, with a head-to-head record of 2–20 across 22 meetings.
- What racquet does Kei Nishikori use?
- The official Wilson player roster lists Kei Nishikori with Wilson, but it does not specify a racquet model. TennisDB does not infer one.