2019 Yokkaichi Challenger – Singles

This was the first edition of the tournament.

Singles
2019 Yokkaichi Challenger
Champion	Yūichi Sugita
Runner-up	James Duckworth
Score	3–6, 6–3, 7–6(7–1)

Main article: 2019 Yokkaichi Challenger

Yūichi Sugita won the title after defeating James Duckworth 3–6, 6–3, 7–6^(7–1) in the final.

Seeds

All seeds receive a bye into the second round.

1. Yasutaka Uchiyama (second round)
2. James Duckworth (final)
3. Tatsuma Ito (semifinals)
4. Chung Hyeon (quarterfinals, withdrew)
5. Yūichi Sugita (champion)
6. Zhang Ze (second round)
7. Hiroki Moriya (third round)
8. Chung Yun-seong (third round)
9. Saketh Myneni (quarterfinals)
10. Wu Tung-lin (quarterfinals)
11. Nam Ji-sung (quarterfinals)
12. Yang Tsung-hua (third round)
13. Makoto Ochi (second round)
14. Yusuke Takahashi (third round)
15. Renta Tokuda (second round)
16. Lý Hoàng Nam (second round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Quarterfinals							Semifinals							Final
	ITF	Sho Shimabukuro	61	6	6
	11	Nam Ji-sung	77	3	2
								ITF	Sho Shimabukuro	5	3
								5	Yūichi Sugita	7	6
	4	Chung Hyeon
	5	Yūichi Sugita	w/o
															5	Yūichi Sugita	3	6	77
															2	James Duckworth	6	3	61
	9	Saketh Myneni	65	1
	3	Tatsuma Ito	77	6
								3	Tatsuma Ito	3	4
								2	James Duckworth	6	6
	10	Wu Tung-lin	3	1
	2	James Duckworth	6	6

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	Y Uchiyama	67	77	3
	ITF	S Shimabukuro	6	6				ITF	S Shimabukuro	79	64	6
	ITF	Yuki Mochizuki	4	2											ITF	S Shimabukuro	6	1
		T Matsui	6	715												T Matsui	4	0r
	Alt	JP Fruttero	3	613					T Matsui	77	77
								13	Makoto Ochi	65	64
																						ITF	S Shimabukuro	61	6	6
																						11	J-s Nam	77	3	2
								11	J-s Nam	6	6
	ITF	Jumpei Yamasaki	6	6				ITF	J Yamasaki	3	2
		B Ellis	4	4											11	J-s Nam	6	5	77
		E Zhu	64	5											7	H Moriya	2	7	61
		W Trongcharoenchaikul	77	4r					E Zhu	65	65
								7	H Moriya	77	77

Section 2

	First round							Second round							Third round							Quarterfinals
								4	Hy Chung	6	6
		M Romios	64	6	6				M Romios	3	1
	ITF	B Lock	77	2	2										4	Hy Chung	3	6	6
	Alt	CJ Lock	2	2											14	Y Takahashi	6	1	4
		Kazuki Nishiwaki	6	6					K Nishiwaki	5	6	3
								14	Y Takahashi	7	3	6
																						4	Hy Chung
																						5	Y Sugita	w/o
								12	T-h Yang	1	6	6
		Y Shimizu	6	6					Y Shimizu	6	1	4
		M-k Song	3	3											12	T-h Yang	3	1
	WC	Yuya Ito	6	6											5	Y Sugita	6	6
		H Bourchier	3	3				WC	Y Ito	3	6	2
								5	Y Sugita	6	3	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								8	Y-s Chung	77	6
		D Kelly	62	0r					A Ayeni	61	3
		Alafia Ayeni	77	0											8	Y-s Chung	3	6	3
		Kazuma Kawachi	6	4	0r										9	S Myneni	6	3	6
	WC	Yasunori Hashikawa	2	6	4			WC	Y Hashikawa	2	64
								9	S Myneni	6	77
																						9	S Myneni	65	1
																						3	T Ito	77	6
								15	Renta Tokuda	6	67	0
	WC	S Hazawa	6	6				WC	S Hazawa	4	79	6
		T Fancutt	4	1											WC	S Hazawa	0	3
		Sora Fukuda	4	3											3	T Ito	6	6
	ITF	K Takeuchi	6	6				ITF	K Takeuchi	65	1
								3	T Ito	77	6

Section 4

	First round							Second round							Third round							Quarterfinals
								6	Ze Zhang	6	65	5
		Kosuke Ogura	1	3					S Sekiguchi	3	77	7
		Shuichi Sekiguchi	6	6												S Sekiguchi	4	0r
		Issei Okamura	3	3											10	T-l Wu	6	0
		Cui Jie	6	6					J Cui	3	61
								10	T-l Wu	6	77
																						10	T-l Wu	3	1
																						2	J Duckworth	6	6
								16	NH Lý	6	2	3
		Shintaro Imai	6	6					S Imai	2	6	6
		N Tajima	2	3												S Imai	2	3
		Ren Nakamura	1	2											2	J Duckworth	6	6
		L Catarina	6	6					L Catarina	1	3
								2	J Duckworth	6	6

External links

• Main draw