2018 ITTF-ATTU Asian Cup

The 2018 ITTF-ATTU Asian Cup was a table tennis competition that took place from 6–8 April in Yokohama, Japan. The event was organised by the Japan Table Tennis Association, under the authority of the International Table Tennis Federation and the Asian Table Tennis Union. It was the 31st edition of the event, and the third time that it had been held in Japan.
Men's singles and women's singles events were held, and the three medallists in each event qualified automatically for the 2018 Men's and Women's World Cups.

Medallists

Qualification

In both the men's and women's singles events, the reigning Asian Champion and Asian Cup Champion qualified, along with the 10 highest-ranked Asian players in the January 2018 ITTF World Ranking. The final four places were awarded to regional representatives from Middle Asia, South Asia, Southeast Asia and West Asia. Qualification was subject to a maximum of two players from any association.
;Men's singles

Player	Qualification
	2017 Asian Cup Champion
	2017 Asian Champion
	WR 6
	WR 7
	WR 11
	WR 14
	WR 15
	WR 29
	WR 30
	WR 35
	WR 48
	WR 74
	South Asia Rep.
	Middle Asia Rep.
	Southeast Asia Rep.
	West Asia Rep.

;Women's singles

Player	Qualification
	2017 Asian Cup Champion
	2017 Asian Champion
	WR 1
	WR 4
	WR 7
	WR 9
	WR 12
	WR 16
	WR 18
	WR 27
	WR 48
	WR 78
	South Asia Rep.
	Middle Asia Rep.
	Southeast Asia Rep.
	West Asia Rep.

Format

The first stage of both the men's and women's singles competitions consisted of four groups playing a round robin system, where each player played the other players in their group once. The top two players in Groups A, B and C qualified directly to the second stage. The third player from Groups A, B and C joined the winner of the Continental Group in play-off matches to decide the final two places in the second stage.
The second stage consisted of a single knockout draw to decide the top eight positions.

Men's singles

Seeding

Players were seeded according to the April 2018 ITTF World Ranking.

Group stage

The group stage took place on 6 April.
;Group A

Pos.	Player	Harimoto	Fan	Chuang	Gerassimenko	Points	Qualification
1	Tomokazu Harimoto	—	3–1	3–1	3–1	6	Advance to second stage
2	Fan Zhendong	1–3	—	3–0	3–0	5	Advance to second stage
3	Chuang Chih-yuan	1–3	0–3	—	3–2	4	Advance to play-off
4	Kirill Gerassimenko	1–3	0–3	2–3	—	3

;Group B

Pos.	Player	Lee	Lin	Chen	Jiang	Points	Qualification
1	Lee Sang-su	—	3–0	3–1	3–1	6	Advance to second stage
2	Lin Gaoyuan	0–3	—	3–0	3–0	5	Advance to second stage
3	Chen Chien-an	1–3	0–3	—	3–1	4	Advance to play-off
4	Jiang Tianyi	1–3	0–3	1–3	—	3

;Group C

Pos.	Player	Wong	Niwa	Jeong	Alamian	Points	Qualification
1	Wong Chun Ting	—	3–2	3–0	3–1	6	Advance to second stage
2	Koki Niwa	2–3	—	3–2	3–0	5	Advance to second stage
3	Jeong Sang-eun	0–3	2–3	—	3–2	4	Advance to play-off
4	Noshad Alamian	1–3	0–3	2–3	—	3

;Continental Group

Pos.	Player	Alamian	Tanviriyavechakul	Thakkar	Al-Abbad	Points	Qualification
1	Nima Alamian	—	3–0	3–2	3–0	6	Advance to play-off
2	P. Tanviriyavechakul	0–3	—	3–1	3–1	5
3	M. V. Thakkar	2–3	1–3	—	3–2	4
4	Abdulaziz Al-Abbad	0–3	1–3	2–3	—	3

;Play-offs

Main draw

The main draw took place on 7 and 8 April.
;5th-8th place play-off

Women's singles