The 32-year-old Ikeda romped to an impressive six-shot victory after ending his campaign on 15-under-par 269 at the JP¥150 million (approximately AU$1.85 million) event sanctioned by the Asian Tour and Japan Golf Tour Organization.

The in-form Justin Harding of South Africa, who claimed two titles in his first two starts on the Asian Tour in 2018, registered a 66 to finish in second place at the Musashi Country Club, Sasai Course.

Ikeda, who held an overnight one-shot lead, bogeyed the first hole but steadied ship with birdies on holes 2, 4 and 6. As his closest challengers faded, Ikeda marked his card with another birdie on 15 to cruise to a comfortable victory.

Ranked 98th on the Official World Golf Ranking, Ikeda secured his first title in 2018 to continue an impressive winning record where he has won every season since 2009.

The 32-year-old Harding produced the round of the day but it was not enough to challenge the impeccable Ikeda. Despite settling for second place, he moved to eighth position on the Habitat for Humanity Standings.

The leading 10 players on the Habitat for Humanity Standings on October 8 will qualify for the lucrative CIMB Classic next month.

Anthony Quayle and Travis Smyth were the best of the Australians, finishing T21st.