Issleib, Zack

USTA ID
2019813665
Gender
Male
Location
Wheaton, IL
WTN ID
ISS4573686

TennisLink · USTA · WTN

Active Flights

M 4.0 Winter
WSC (Isphording)

NTRP Ratings

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

WTN Ratings

Singles
23.36
Confidence 50 · 21.6–25.1
Doubles
24.70
Confidence 90 · 23.0–26.4

Position Distribution

Men's Combo 4.0
13 matches
1# Doubles
7 (54%)
2# Doubles
1 (8%)
3# Doubles
5 (38%)

Partners

PartnerWLxWTogether
David Isphording 3 2 2.2 5
Orville Ankarlo 0 2 0.5 2
John Crowe 0 2 0.7 2
Anthony Noti 1 0 0.7 1
Connor Moelmann 1 0 0.4 1
Scott Moss 1 0 0.5 1
Matt Lorentsen 1 0 0.2 1

Opponents

OpponentWLxWFaced
Simon Abraham 0 2 0.3 2
Ionut Rus 0 2 0.3 2
Samuel Liu 1 1 0.5 2
Keith Boutell 1 1 1.3 2
Christopher Urso 1 0 0.7 1
Matthew Lee 1 0 0.7 1
David Shin 1 0 0.4 1
Jordan Federbush 1 0 0.8 1
Randy Orr 1 0 0.3 1
Michael Czarny 1 0 0.3 1
Yuki Iwanari 1 0 0.7 1
Saburo Koshizawa 1 0 0.7 1
Gerardo Vega 0 1 0.4 1
Alexander DeMay 0 1 0.4 1
Arun Balaji Balu 1 0 0.5 1
Asheesh Singh 1 0 0.5 1
Bryant Beal 1 0 0.2 1
Chris O'Malley 1 0 0.2 1
Jason Hui 0 1 0.1 1
Collin Moore 0 1 0.5 1
Rick Aguayo 0 1 0.1 1
John Leubner 0 1 0.1 1

Match History (13)

DateFlightPosPartnerOpponent(s)ScoreP(win)Result
3/29/2026 M 4.0 Winter 1# Doubles Anthony Noti Christopher Urso / Matthew Lee 6-2 4-6 1-0 69% W
2/27/2026 M 4.0 Winter 1# Doubles David Isphording Simon Abraham / Ionut Rus 6-0 7-6 19% L
2/1/2026 M 4.0 Winter 1# Doubles Connor Moelmann Samuel Liu / David Shin 0-6 7-6 1-0 43% W
1/24/2026 M 4.0 Winter 1# Doubles David Isphording Keith Boutell / Jordan Federbush 3-6 6-3 1-0 80% W
7/13/2025 M 4.0 Summer 1# Doubles David Isphording Randy Orr / Michael Czarny 6-3 6-3 28% W
7/12/2025 M 4.0 Summer 1# Doubles David Isphording Yuki Iwanari / Saburo Koshizawa 7-6 6-2 74% W
6/22/2025 M 4.0 Summer 3# Doubles Orville Ankarlo Gerardo Vega / Alexander DeMay 6-4 6-2 42% L
6/13/2025 M 4.0 Summer 1# Doubles David Isphording Simon Abraham / Ionut Rus 6-2 5-7 1-0 15% L
6/8/2025 M 4.0 Summer 3# Doubles Scott Moss Arun Balaji Balu / Asheesh Singh 6-2 6-3 53% W
6/1/2025 M 4.0 Summer 3# Doubles Matt Lorentsen Bryant Beal / Chris O'Malley 6-2 6-4 21% W
5/4/2025 M 4.0 Winter 2# Doubles John Crowe Jason Hui / Samuel Liu 1-6 7-6 1-0 11% L
5/3/2025 M 4.0 Winter 3# Doubles John Crowe Collin Moore / Keith Boutell 7-6 4-6 1-0 54% L
4/12/2025 M 4.0 Winter 3# Doubles Orville Ankarlo Rick Aguayo / John Leubner 6-4 6-4 11% L

Team History

YearFlightTeamRole
2026 CDTA 18 & Over M 4.0 Winter Active CDTA W 18&OM4.0 2.WSC Isphording Sun 2 $22
2025 CDTA 18 & Over M 4.0 Summer CDTA S A18M4.0 5Wheaton Isphording Sun 2 $22
2025 CDTA 18 & Over M 4.0 Winter CDTA W 18&OM4.0 2.Wheaton Isphording Sat 2 $22