Ko Watahiki is a professional footballer from JPN and is currently 28 years old. He is on the books of SC Sagamihara and wears shirt number 2. His main role on the pitch is Defender. He measures 171cm in height and weighs 70kg. His stronger foot is Right. His estimated market valuation currently stands at 100K €.

His latest transfer saw him join SC Sagamihara from Tegevajaro Miyazaki via on 2023-01-08.

Across the Japanese J3 League 2025, Ko Watahiki appeared in 18 matches and averaged 1 tackles, 0.6 interceptions, 3.1 clearances, and 0.1 blocked shots per game.