Diaz, Ernesto

USTA ID
2018994223
Gender
Male
Location
Chicago, IL
WTN ID
DIA4373950

TennisLink · USTA · WTN

Active Flights

M 4.0 Winter
Gnbk (Hui)
Mixed 8.0 Winter
Nielsen (Phelps)
40 & Over M 4.0 Winter
Nielsen (Phelps)

NTRP Ratings

RatingTypeYearDateExpires
4.0 C 2025 Dec. 31, 2025 Dec. 31, 2028

WTN Ratings

Singles
27.22
Confidence 30 · 25.4–29.0
Doubles
24.76
Confidence 90 · 23.1–26.5

Position Distribution

Men's Combo 4.0
61 matches
1# Doubles
23 (38%)
1# Singles
1 (2%)
2# Doubles
18 (30%)
2# Singles
1 (2%)
3# Doubles
18 (30%)
Men's Doubles 8.5
3 matches
2# Doubles
1 (33%)
3# Doubles
2 (67%)
Mixed Doubles 7.5
8 matches
1# Doubles
8 (100%)
Mixed Doubles 8.5
6 matches
1# Doubles
1 (17%)
2# Doubles
3 (50%)
3# Doubles
2 (33%)
Mixed Doubles 9.0
4 matches
1# Doubles
1 (25%)
2# Doubles
1 (25%)
3# Doubles
2 (50%)

Partners

PartnerWLxWTogether
Rick Aguayo 7 3 6.7 10
Eric Rodrigo 8 1 6.5 9
Randy Orr 3 3 4.1 6
Alja Hessami-Maas 4 0 1.8 4
John Leubner 1 2 2.3 3
Christian Montresor 2 1 2.1 3
Maja Kozerski 1 2 0.9 3
Manik Dewan 2 0 1.2 2
Scott Ummel 1 1 0.9 2
Joon Sung 2 0 1.2 2
Rex J Lao 2 0 1.6 2
Charles Phelps 2 0 1.5 2
Todd Dahlquist 2 0 1.3 2
Daniel Lek 2 0 1.2 2
Danny Postel 2 0 1.2 2
Margaux Teegarden-Downs 0 2 0.4 2
Paul Tiu 0 1 0.2 1
Andrew Meyer 1 0 0.5 1
Kevin Thompson 1 0 0.9 1
Jordan Federbush 1 0 0.6 1
Todd Wagner 1 0 0.5 1
Stefan Kutko 1 0 0.7 1
Joe Holguin 1 0 0.5 1
Steve Franks 1 0 0.7 1
Laura Levin 0 1 0.0 1
Cris Montresor 0 1 0.1 1
Renato Shimabukuro 1 0 0.5 1
Jane Girard 0 1 0.3 1
Rachel Stein 0 1 0.3 1
Luis Sanchez 0 1 0.9 1
Stephanie Rogers 0 1 0.1 1
Kristen Hemmings 1 0 0.5 1
Paul Zuffa 0 1 0.6 1
Eric Gordon 1 0 0.5 1
Chris McGuire 1 0 0.5 1
Zachary Thompson 1 0 0.6 1
Russell Needler 1 0 0.8 1
Marina Minkina 1 0 0.3 1
Melanie Berends 0 1 0.2 1
Michele Canar 1 0 0.1 1

Opponents

OpponentWLxWFaced
Derek Majka 4 1 2.8 5
Felix Danciu 2 1 1.3 3
Chris O'Malley 3 0 2.0 3
Rafael Lozada 1 2 1.3 3
Brett Wangman 3 0 1.8 3
Douglas Ip 1 1 1.2 2
Miranda Kay 0 2 0.1 2
Thomas Batka 0 2 0.1 2
Gene Huh 1 1 1.6 2
Charles Ahn 1 1 1.4 2
Jeffrey Wynsma 2 0 1.5 2
Dan Saviano 0 2 0.8 2
Adrian Ciuca 1 1 1.2 2
Tyrin Wages 1 1 1.0 2
Carlos Flores 1 1 1.1 2
Cristobal GARCIA 2 0 1.3 2
Kevin Podwika 0 2 1.0 2
Jordan Federbush 2 0 1.6 2
Brian Green 2 0 0.6 2
David Isphording 1 1 0.7 2
Jean Soh 1 1 0.5 2
Matthew Zech 1 0 0.3 1
Max Brodkey 1 0 0.3 1
Akash Shah 1 0 0.9 1
Avi Mehta 1 0 0.9 1
Ionut Rus 0 1 0.2 1
Simon Abraham 0 1 0.2 1
Sameer Talcherkar 1 0 0.9 1
Srikanth Nanduri 1 0 0.9 1
Luigi Mazzarella 1 0 0.6 1
Dan Burnette 1 0 0.7 1
Cooper Babich 1 0 0.7 1
Manik Dewan 1 0 0.7 1
Jatin Vasa 1 0 0.7 1
Eric Haab 1 0 0.7 1
Brian Benzer 1 0 0.7 1
William Steinman 1 0 0.9 1
Jonathan Benishay 1 0 0.9 1
Young Choi 1 0 0.7 1
Mark Ainsworth 1 0 0.8 1
Venkat Maligireddy 1 0 0.8 1
Dean Stermer 1 0 0.7 1
Anthony Sammarco 1 0 0.7 1
Scott Moss 1 0 0.8 1
Orville Ankarlo 1 0 0.8 1
Igor Gogov 0 1 0.2 1
Christian Montresor 0 1 0.7 1
Marco Deutsch 0 1 0.7 1
Taya Zoubareva 0 1 0.1 1
Justin Booms 0 1 0.1 1
Rod Wienke 0 1 0.5 1
Ty Caughell 0 1 0.9 1
Alissa Wiedelman 0 1 0.3 1
Mark MacGuidwin 0 1 0.3 1
Mary Therese Lee 0 1 0.3 1
Jason Hui 1 0 0.7 1
Yasukazu Nagatake 0 1 0.6 1
Hideaki Takahashi 0 1 0.6 1
Greg Goalwin 1 0 0.9 1
Don Carstens 0 1 0.9 1
Dal Bristow 0 1 0.9 1
Samuel Liu 1 0 0.7 1
Misha Tseytlin 1 0 0.7 1
Andrew Zens 1 0 0.4 1
Christopher Urso 1 0 0.4 1
Jonathan Gawlak 1 0 0.7 1
Keith Sgariglia 0 1 0.7 1
John Gatz 1 0 0.7 1
Scott Modica 1 0 0.7 1
Todd Dahlquist 0 1 0.4 1
Saverio Suraci 1 0 0.6 1
Maneesh Gandhi 0 1 0.6 1
Jonathan Cooper 1 0 0.6 1
Afshin Mikaili 1 0 0.9 1
Scott Sindelar 1 0 0.9 1
Jared Suttles 1 0 0.7 1
Bruce Thornquist 1 0 0.7 1
John Simonetti 1 0 0.7 1
Jeff Skummer 1 0 0.7 1
Timothy Schmeltz 1 0 0.8 1
Kevin Wang 1 0 0.8 1
Jacob Kim 1 0 0.8 1
Xizhuo Cao 1 0 0.6 1
Youngbin Lim 1 0 0.6 1
David Maxson 0 1 0.6 1
Daniel Michael 1 0 0.8 1
Matt Burghgraef 0 1 0.4 1
Leo Kanev 1 0 0.9 1
Tim Schreiber 1 0 0.9 1
El Cid Balitaan 1 0 0.8 1
PIOTR WARDYNSKI 1 0 0.8 1
Jazz Burks 1 0 0.8 1
Justin Hoehn 0 1 0.6 1
Stephen Ewaldz 1 0 0.7 1
James Klein 1 0 0.7 1
CARLOS TRUJILLO JR 1 0 0.8 1
Vincent Thomas 1 0 0.8 1
Arun Singh 1 0 0.8 1
Jack Wang 1 0 0.8 1
Joseph Lyden 1 0 0.7 1
Hazem Isawi 1 0 0.5 1
Keith Boutell 1 0 0.8 1
Jason Richardson 1 0 0.6 1
Rita Eichner 1 0 0.3 1
Alison Miller 1 0 0.5 1
Amanda Connell 0 1 0.2 1
Peter Shields 0 1 0.2 1
Rod Ganesan 1 0 0.3 1
Sarah Blankenbaker 1 0 0.3 1
Christina Greeley 1 0 0.6 1
Nikki Pamphilis 0 1 0.4 1
Oliver Natarajan 0 1 0.4 1
Megan Nguyen 0 1 0.1 1
Carlos Alcantar 0 1 0.1 1
John Mysz 1 0 0.4 1
Agnieszka Fijol 1 0 0.4 1
Brian Yoo 1 0 0.4 1
Leigh Champagne 1 0 0.1 1
Chen Cheng 0 1 0.2 1
Cate Barnes 0 1 0.2 1

Match History (82)

DateFlightPosPartnerOpponent(s)ScoreP(win)Result
2/28/2026 40 & Over M 4.0 Winter 3# Doubles Manik Dewan 6-0 6-0 W
2/1/2026 40 & Over M 4.0 Winter 1# Doubles Scott Ummel Derek Majka / Felix Danciu 6-4 6-3 48% L
1/24/2026 M 4.0 Winter 1# Doubles Joon Sung Matthew Zech / Max Brodkey 6-4 7-6 28% W
1/18/2026 M 4.0 Winter 3# Doubles Joon Sung Akash Shah / Avi Mehta 6-0 6-2 94% W
1/11/2026 M 4.0 Winter 1# Doubles Paul Tiu Ionut Rus / Simon Abraham 6-1 6-4 24% L
12/21/2025 40&O Men 4.0 3# Doubles Andrew Meyer 6-0 6-0 W
12/13/2025 Men 4.0 1# Doubles Kevin Thompson Sameer Talcherkar / Srikanth Nanduri 6-3 6-4 92% W
11/16/2025 Men 4.0 2# Doubles Jordan Federbush Chris O'Malley / Luigi Mazzarella 6-4 6-4 64% W
11/15/2025 40&O Men 4.0 3# Doubles Manik Dewan Dan Burnette / Cooper Babich 6-1 7-6 72% W
11/9/2025 40&O Men 4.0 1# Doubles Todd Wagner Derek Majka / Felix Danciu 6-2 6-1 54% W
11/1/2025 Men 4.0 1# Doubles Eric Rodrigo Manik Dewan / Jatin Vasa 6-4 6-1 69% W
10/19/2025 40&O Men 4.0 3# Doubles Stefan Kutko Eric Haab / Brian Benzer 4-6 6-2 1-0 73% W
9/13/2025 Men 4.0 1# Doubles Randy Orr William Steinman / Jonathan Benishay 6-3 6-2 89% W
8/9/2025 Combo M 8.5 Summer 2# Doubles Joe Holguin 6-0 6-0 W
7/27/2025 40 & Over M 4.0 Summer 2# Doubles Rick Aguayo Douglas Ip / Young Choi 2-6 6-4 1-0 65% W
7/22/2025 40 & Over M 4.0 Summer 2# Doubles Rick Aguayo Mark Ainsworth / Venkat Maligireddy 6-4 2-6 1-0 83% W
7/17/2025 40 & Over M 4.0 Summer 2# Doubles Steve Franks Dean Stermer / Anthony Sammarco 6-1 6-1 69% W
7/13/2025 M 4.0 Summer 3# Doubles Eric Rodrigo Scott Moss / Orville Ankarlo 6-3 6-2 82% W
7/12/2025 M 4.0 Summer 2# Singles — Igor Gogov 6-4 3-6 1-0 18% L
7/9/2025 Combo Mix 8.5 Summer 2# Doubles Laura Levin Miranda Kay / Thomas Batka 6-0 6-2 2% L
6/22/2025 40 & Over M 4.0 Summer 3# Doubles Rick Aguayo Christian Montresor / Marco Deutsch 6-4 5-7 1-0 68% L
6/21/2025 Combo Mix 8.5 Summer 3# Doubles Cris Montresor Taya Zoubareva / Justin Booms 6-4 6-2 15% L
6/14/2025 Combo M 8.5 Summer 3# Doubles Renato Shimabukuro 6-0 6-0 W
6/8/2025 Combo M 8.5 Summer 3# Doubles Randy Orr Rod Wienke / Rafael Lozada 7-6 6-7 1-0 53% L
6/1/2025 M 4.0 Summer 3# Doubles John Leubner Ty Caughell / Gene Huh 1-6 7-5 1-0 89% L
5/18/2025 Combo Mix 8.5 Summer 1# Doubles Jane Girard Alissa Wiedelman / Mark MacGuidwin 6-4 7-5 26% L
5/10/2025 Combo Mix 8.5 Summer 2# Doubles Rachel Stein Mary Therese Lee / Rafael Lozada 1-6 7-6 1-0 30% L
4/27/2025 40 & Over M 4.0 Winter 3# Doubles John Leubner Jason Hui / Charles Ahn 6-3 4-6 1-0 74% W
4/26/2025 M 4.0 Winter 3# Doubles Christian Montresor Yasukazu Nagatake / Hideaki Takahashi 6-2 7-5 63% L
4/12/2025 M 4.0 Winter 2# Doubles Rex J Lao Greg Goalwin / Jeffrey Wynsma 6-4 6-4 89% W
4/5/2025 M 4.0 Winter 3# Doubles Luis Sanchez Don Carstens / Dal Bristow 7-5 7-6 89% L
3/16/2025 40 & Over M 4.0 Winter 1# Singles — Dan Saviano 6-0 2-6 1-0 19% L
3/9/2025 Combo Mix 8.5 Winter 2# Doubles Stephanie Rogers Miranda Kay / Thomas Batka 6-4 6-4 8% L
3/2/2025 M 4.0 Winter 3# Doubles Charles Phelps Samuel Liu / Misha Tseytlin 6-4 6-2 68% W
2/15/2025 M 4.0 Winter 3# Doubles Christian Montresor Adrian Ciuca / Brett Wangman 6-4 6-4 68% W
2/8/2025 40 & Over M 4.0 Winter 1# Doubles Scott Ummel Andrew Zens / Christopher Urso 6-2 7-6 39% W
2/2/2025 M 4.0 Winter 3# Doubles Rex J Lao Jonathan Gawlak / Chris O'Malley 6-4 7-5 68% W
1/26/2025 Combo Mix 8.5 Winter 3# Doubles Kristen Hemmings 6-0 6-0 W
1/25/2025 M 4.0 Winter 2# Doubles Randy Orr Charles Ahn / Keith Sgariglia 4-6 6-3 1-0 66% L
1/19/2025 40 & Over M 4.0 Winter 3# Doubles Christian Montresor John Gatz / Scott Modica 6-3 6-4 74% W
12/21/2024 Men 4.0 2# Doubles Randy Orr Todd Dahlquist / Tyrin Wages 6-4 3-6 1-0 43% L
12/15/2024 Men 4.0 2# Doubles Randy Orr Chris O'Malley / Saverio Suraci 6-3 6-2 63% W
12/1/2024 40&O Men 4.0 1# Doubles Eric Rodrigo Adrian Ciuca / Carlos Flores 6-4 2-6 1-0 54% L
11/10/2024 40&O Men 4.0 2# Doubles Paul Zuffa Douglas Ip / Maneesh Gandhi 6-1 2-6 1-0 56% L
11/3/2024 40&O Men 4.0 1# Doubles Rick Aguayo Derek Majka / Jonathan Cooper 2-6 6-4 1-0 58% W
11/2/2024 Men 4.0 2# Doubles Randy Orr Afshin Mikaili / Scott Sindelar 6-2 6-2 95% W
10/20/2024 40&O Men 4.0 1# Doubles Eric Rodrigo Jared Suttles / Bruce Thornquist 5-7 6-4 1-0 67% W
10/13/2024 40&O Men 4.0 1# Doubles Eric Rodrigo John Simonetti / Jeff Skummer 6-3 6-1 71% W
10/5/2024 40&O Men 4.0 1# Doubles Eric Rodrigo Cristobal GARCIA / Timothy Schmeltz 6-3 2-6 1-0 80% W
9/15/2024 Men 4.0 1# Doubles Charles Phelps Kevin Wang / Jacob Kim 6-3 7-6 80% W
9/15/2024 40&O Men 4.0 3# Doubles Eric Gordon 6-0 6-0 W
7/27/2024 M 4.0 Summer 3# Doubles Chris McGuire 6-0 6-0 W
6/15/2024 M 4.0 Summer 1# Doubles Zachary Thompson Xizhuo Cao / Youngbin Lim 6-3 6-4 64% W
6/13/2024 40 & Over M 4.0 Summer 1# Doubles John Leubner David Maxson / Kevin Podwika 7-5 6-4 62% L
4/21/2024 M 4.0 Winter 1# Doubles Todd Dahlquist Tyrin Wages / Brett Wangman 6-4 6-4 60% W
3/10/2024 M 4.0 Winter 2# Doubles Todd Dahlquist Jordan Federbush / Daniel Michael 6-1 6-0 75% W
2/25/2024 40 & Over M 4.0 Winter 1# Doubles Rick Aguayo Matt Burghgraef / Kevin Podwika 6-1 7-6 39% L
2/18/2024 40 & Over M 4.0 Winter 1# Doubles Eric Rodrigo Carlos Flores / Rafael Lozada 3-6 6-4 1-0 52% W
2/10/2024 40 & Over M 4.0 Winter 1# Doubles Eric Rodrigo Leo Kanev / Tim Schreiber 6-1 6-4 91% W
2/3/2024 M 4.0 Winter 1# Doubles Daniel Lek El Cid Balitaan / Gene Huh 7-5 6-3 75% W
1/27/2024 40 & Over M 4.0 Winter 1# Doubles Eric Rodrigo PIOTR WARDYNSKI / Jazz Burks 6-1 6-3 84% W
1/21/2024 M 4.0 Winter 2# Doubles Rick Aguayo Justin Hoehn / Dan Saviano 6-3 3-6 1-0 63% L
1/14/2024 40 & Over M 4.0 Winter 2# Doubles Danny Postel Stephen Ewaldz / James Klein 6-2 4-6 1-0 69% W
1/13/2024 M 4.0 Winter 1# Doubles Danny Postel Brian Green / David Isphording 6-4 5-7 1-0 53% W
12/16/2023 Men 4.0 2# Doubles Russell Needler CARLOS TRUJILLO JR / Vincent Thomas 6-3 6-2 82% W
12/3/2023 40&O Men 4.0 2# Doubles Rick Aguayo Arun Singh / Jack Wang 6-0 6-0 83% W
11/19/2023 40&O Men 4.0 2# Doubles Rick Aguayo Joseph Lyden / Derek Majka 6-3 6-2 65% W
11/5/2023 Men 4.0 3# Doubles Daniel Lek Hazem Isawi / Brett Wangman 6-2 6-4 48% W
10/21/2023 Men 4.0 2# Doubles Rick Aguayo Keith Boutell / Jordan Federbush 6-3 7-6 84% W
10/7/2023 Men 4.0 2# Doubles Rick Aguayo Jeffrey Wynsma / Jason Richardson 7-5 6-1 65% W
7/17/2023 Combo Mix 7.5X 1# Doubles Marina Minkina Rita Eichner / Felix Danciu 2-6 6-1 1-0 32% W
5/20/2023 Combo Mix 7.5X 1# Doubles Alja Hessami-Maas Alison Miller / Cristobal GARCIA 3-6 6-1 1-0 50% W
4/23/2023 9.0 Mixed Winter 1# Doubles Melanie Berends Amanda Connell / Peter Shields 7-5 5-3 20% L
4/15/2023 Mix Combo 7.5X Winter 1# Doubles Alja Hessami-Maas Rod Ganesan / Sarah Blankenbaker 6-4 6-3 34% W
4/2/2023 Mix Combo 7.5X Winter 1# Doubles Alja Hessami-Maas Christina Greeley / Derek Majka 4-6 6-1 1-0 55% W
3/19/2023 9.0 Mixed Winter 3# Doubles Maja Kozerski Nikki Pamphilis / Oliver Natarajan 6-2 6-4 44% L
3/11/2023 9.0 Mixed Winter 2# Doubles Maja Kozerski Megan Nguyen / Carlos Alcantar 6-3 6-3 7% L
3/5/2023 9.0 Mixed Winter 3# Doubles Maja Kozerski John Mysz / Jean Soh 6-2 6-4 39% W
2/25/2023 Mix Combo 7.5X Winter 1# Doubles Alja Hessami-Maas Agnieszka Fijol / Brian Yoo 6-3 4-6 1-0 45% W
1/7/2023 Mix Combo 7.5X Winter 1# Doubles Michele Canar Leigh Champagne / Brian Green 7-5 4-6 1-0 9% W
12/17/2022 Fall Combo Mixed 7.5X 1# Doubles Margaux Teegarden-Downs Jean Soh / Chen Cheng 7-5 6-3 15% L
10/22/2022 Fall Combo Mixed 7.5X 1# Doubles Margaux Teegarden-Downs David Isphording / Cate Barnes 6-3 6-4 21% L

Team History

YearFlightTeamRole
2026 CDTA 18 & Over M 4.0 Winter Active CDTA W 18&OM4.0 13.Gnbk Hui Sun 5 $30
2026 CDTA E 18&O Men 4.0 CDTA E 18&OM4.0 4Tam Bhat Sat 6 $22
2026 CDTA Mixed 18 & Over 8.0 Winter Active CDTA W M18&O8.0 5.Nielsen Phelps Sun 4 $22
2026 CDTA 40 & Over M 4.0 Winter Active CDTA W 40&OM4.0 4.Nielsen Phelps Sat 6 $22
2026 CDTA E 40&O Men 4.0 CDTA E 40&OM4.0 4Nielsen Phelps Sat 6 $22
2025 CDTA 18 & Over M 4.0 Summer CDTA S A18M4.0 4Tam Aguayo Sat 1 $22
2025 CDTA E 18&O Men 4.0 CDTA E 18&OM4.0 4.Tam Aguayo Sat 1 $22
2025 CDTA 18 & Over M 4.0 Winter CDTA W 18&OM4.0 5.Tam Aguayo Sat 1 $22
2025 CDTA Combo M 8.5 Summer CDTA S ComboM8.5 1Nielsen Phelps Sat 4 $22
2025 CDTA Combo Mix 8.5 Summer CDTA S ComboX8.5 2Nielsen Phelps Sun 4 $22
2025 CDTA Combo Mix 8.5 Winter CDTA W ComboX8.5 1.Nielsen Phelps Sun 4 $22
2025 CDTA 40 & Over M 4.0 Summer CDTA S A40M4.0 3Tam Franks Sun 1 $22
2025 CDTA E 40&O Men 4.0 CDTA E 40&OM4.0 3.Tam Franks Sun 1 $22
2025 CDTA 40 & Over M 4.0 Winter CDTA W 40&OM4.0 5.Tam Franks Sun 1 $22
2024 CDTA 18 & Over M 4.0 Summer CDTA S 18&OM4.0 2.Tam Franks Sat 1 $22
2024 CDTA 18 & Over M 4.0 Winter CDTA W 18&OM4.0 3.Tam Aguayo Sat 1 $22
2024 CDTA E 18&O Men 4.0 CDTA E 18&OM4.0 1.Tam Aguayo Sat 1 $22
2024 CDTA 40 & Over M 4.0 Summer CDTA S 40&OM4.0 3.Tam Franks Sun 1 $22
2024 CDTA 40 & Over M 4.0 Winter CDTA W 40&OM4.0 3.Tam Franks Sun 1 $22
2024 CDTA E 40&O Men 4.0 CDTA E 40&OM4.0 1.Tam Franks Sun 1 $22
2023 CDTA S Combo Mix 7.5X CDTA S ComboMix7.5X c.Tam Landt Sat 5 $22
2023 CDTA Mix Combo 7.5X Winter CDTA W Mix Combo 7.5X Tam Landt Sat 5 $22
2023 CDTA 18 & Over 9.0 Mixed Winter CDTA W M18&O 9.0X Tam Bhatty Sun 7 $22
2022 CDTA Fall Combo Mixed 7.5X CDTA F Combo Mix 7.5X Tam Landt Sat 5 $22