2018 Oracle Challenger Series – Chicago

2018 Oracle Challenger Series – Chicago
2018 Oracle Challenger Series – Chicago
Date	September 4–9
Edition	1st
Category	ATP Challenger Tour ; WTA 125K series
Draw	32S / 16D
Prize money	$150,000+H (ATP) ; $150,000 (WTA)
Surface	Hard, outdoor
Location	Chicago, United States
Venue	XS Tennis Village
Champions
Men's singles
	Denis Istomin
Women's singles
	Petra Martić
Men's doubles
	Luke Bambridge / Neal Skupski
Women's doubles
	Mona Barthel / Kristýna Plíšková

The 2018 Oracle Challenger Series – Chicago was a professional tennis tournament played on outdoor hard courts. This tournament was part of the 2018 ATP Challenger Tour and the 2018 WTA 125K series. The first edition took place from September 4 to 9, 2018 in Chicago, United States.

Men's singles main-draw entrants

Country	Player	Rank¹	Seed
ITA	Andreas Seppi	51	1
UZB	Denis Istomin	76	2
CAN	Vasek Pospisil	88	3
SRB	Viktor Troicki	102	4
USA	Michael Mmoh	120	5
BEL	Ruben Bemelmans	128	6
SWE	Elias Ymer	132	7
USA	Noah Rubin	135	8

The following players received wildcards into the singles main draw:

The following players received entry into the singles main draw as alternates:

The following players received entry from the qualifying draw:

The following players received entry as lucky losers:

Country	Player	Rank¹	Seed
USA	Danielle Collins	37	1
CRO	Petra Martić	47	2
KAZ	Zarina Diyas	60	3
GER	Tatjana Maria	70	4
FRA	Pauline Parmentier	71	5
USA	Sachia Vickery	78	6
RUS	Evgeniya Rodina	80	7
SWE	Johanna Larsson	82	8

The following players received wildcards into the singles main draw:

The following players received entry from the qualifying draw:

Country	Player	Country	Player	Rank¹	Seed
USA	Kaitlyn Christian	USA	Sabrina Santamaria	108	1
CRO	Darija Jurak	SUI	Xenia Knoll	128	2
CHI	Alexa Guarachi	USA	Desirae Krawczyk	154	3
RUS	Natela Dzalamidze	RUS	Veronika Kudermetova	182	4

^ "Official Player Acceptance List". oraclechallengerseries.com. Retrieved 17 August 2018.^{[permanent dead link]}