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.
| 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 | |
Men's singles main-draw entrants edit
Seeds edit
| 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 |
- 1 Rankings are as of 27 August 2018.
Other entrants edit
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:
Women's singles main-draw entrants edit
Seeds edit
| 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 |
- 1 Rankings are as of 27 August 2018.[1]
Other entrants edit
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Withdrawals edit
Jennifer Brady → replaced by 
Duan Yingying
Dalila Jakupović → replaced by 
Beatriz Haddad Maia- Vania King → replaced by Zhu Lin
Magda Linette → replaced by Madison Brengle- Christina McHale → replaced by
Jana Fett 
Monica Niculescu → replaced by 
Katie Boulter
Rebecca Peterson → replaced by 
Mona Barthel
Monica Puig → replaced by 
Ons Jabeur
Women's doubles main-draw entrants edit
Seeds edit
| 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 |
- Rankings are as of 27 August 2018
Champions edit
Men's singles edit
Denis Istomin def. Reilly Opelka 6–4, 6–2.
Women's singles edit
- Petra Martić def. Mona Barthel, 6–4, 6–1
Men's doubles edit
- Luke Bambridge / Neal Skupski def.
Leander Paes / 
Miguel Ángel Reyes-Varela, 6–3, 6–4
Women's doubles edit
- Mona Barthel /
Kristýna Plíšková def. Asia Muhammad / Maria Sanchez, 6–3, 6–2
References edit
- ^ "Official Player Acceptance List". oraclechallengerseries.com. Retrieved 17 August 2018.[permanent dead link]