2019 Ningbo Challenger

Country	Player	Rank	Seed1
IND	Prajnesh Gunneswaran	82	1
USA	Bradley Klahn	96	2
ESP	Alejandro Davidovich Fokina	102	3
JPN	Yasutaka Uchiyama	110	4
JPN	Go Soeda	125	5
TPE	Jason Jung	134	6
JPN	Tatsuma Ito	137	7
AUS	Alex Bolt	138	8
TUN	Malek Jaziri	149	9
AUS	Marc Polmans	154	10
CAN	Steven Diez	158	11
CHN	Zhang Zhizhen	179	12
AUS	Andrew Harris	186	13
ESP	Enrique López Pérez	188	14
UZB	Denis Istomin	195	15
SRB	Danilo Petrović	196	16

• ¹ Rankings are as of 7 October 2019^[1]

The following players received wildcards into the singles main draw:

• Cui Jie
• Gao Xin
• He Yecong
• Li Yuanfeng
• Sun Fajing

The following player received entry into the singles main draw as an alternate:

• Nicolás Barrientos

The following players received entry from the qualifying draw:

• Sidharth Rawat
• Fabien Reboul

The following player received entry as a lucky loser:

• Wang Aoran

• Yasutaka Uchiyama def. Steven Diez 6–1, 6–3.

• Andrew Harris / Marc Polmans def. Alex Bolt / Matt Reid 6–0, 6–1.