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Deuce.

ATP TourSouth Korea

Keon Kang Ku

Season
3–2
60.0% win rate
Career
—
Titles
—
Singles
Prize money
—
Career

Recent form

3 wins in a row

  1. LLost to Ji Sung Nam
  2. LLost to Toshiki Karigyo
  3. WBeat Natsuki Yamamoto
  4. WBeat Eunchae Kim
  5. WBeat Anmar Faleh Alhogbani

Oldest to newest. Hover a result for the opponent.

By surface

Strongest on hard

  • Hardmost played2–250%
  • Surface TBD1–0100%

Elo rating

Full leaderboard

1543#964 on tour

Peak 1543 in 2026 · from 5 rated matches

Not enough matches on any one surface yet — a surface rating needs at least 15.

Computed from every completed ATP singles match since 2008, not from ranking points: beating a strong player is worth more than beating a weak one. A surface figure is this player’s overall rating plus an adjustment learned only from their matches on that surface.

Match results

4 matches· 2026

All years20262025