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Mathias

Koski

USA

Amateur

Gender

Male

Age

Height

DUPR ID

XKLY5X

Plays

Right-Handed

Resides

Mathias

Koski

USA

Amateur

Gender

Male

Age

Height

DUPR ID

XKLY5X

Plays

Right-Handed

Resides

Ratings powered by

Doubles

*****

Singles

Processed

Mathias Koski - Pickleball Rating History

Ratings powered by

Doubles

*****

Singles

Processed

Great Lakes Open

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.679

David Koski

M | USA

3.533

1210

10>

1210

Rob Brethauer

M | USA

2.946

Brian Call

50 | M | Saginaw, MI, USA

2.946

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.693

David Koski

M | USA

3.547

511

01<

511

Mitchell Petz

44 | M | Denver, CO, USA

3.530

Scott Lint

66 | M | Mesick, MI, USA

3.493

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.709

David Koski

M | USA

3.563

911

01<

911

Brian Shick

50 | M | Newaygo, MI, USA

3.462

Alex Walker

M | USA

3.320

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.659

David Koski

M | USA

3.513

011

01<

011

Roger Gerstle

M | USA

3.864

Thomas Yax

M | USA

3.864

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.925

David Koski

M | USA

3.779

116

10>

116

Tim Campbell

M | USA

3.150

Arik May

M | USA

3.260

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.788

David Koski

M | USA

3.643

511

01<

511

Blake Cupp

M | USA

3.469

Hudson Maxa

17 | M | MI, USA

3.793

Salute & Smash

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.857

-0.030

2.827

Christine Roberts

F | USA

3.422

-0.019

3.403

415

01<

415

Kathryn Koski

F | USA

3.364

+0.033

3.397

David Koski

M | USA

3.652

+0.030

3.682

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.912

-0.055

2.857

Christine Roberts

F | USA

3.455

-0.033

3.422

211

01<

211

Kathryn Koski

F | USA

3.303

+0.061

3.364

David Koski

M | USA

3.597

+0.055

3.652

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.810

+0.102

2.912

Christine Roberts

F | USA

3.395

+0.060

3.455

114

10>

114

Sarika Craigie

49 | F | MI, USA

3.194

-0.027

3.167

Dennis Granowicz

54 | M | Macomb, MI, USA

3.770

-0.026

3.744

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.856

-0.047

2.810

Christine Roberts

F | USA

3.422

-0.027

3.395

1113

01<

1113

Cheryl Witherspoon

F | USA

2.738

+0.058

2.795

Mark Witherspoon

M | USA

2.919

+0.058

2.977

Date	Team 1	Score	Team 2
Great Lakes Open
Aug 15 2026 Doubles	Mathias Koski M \| USA 2.679 2.679 David Koski M \| USA 3.533 3.533	1< 1210 0 10> 1210	Rob Brethauer M \| USA 2.946 2.946 Brian Call 50 \| M \| Saginaw, MI, USA 2.946 2.946

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.693 2.693 David Koski M \| USA 3.547 3.547	0 511 1< 01< 511	Mitchell Petz 44 \| M \| Denver, CO, USA 3.530 3.530 Scott Lint 66 \| M \| Mesick, MI, USA 3.493 3.493

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.709 2.709 David Koski M \| USA 3.563 3.563	0 911 1< 01< 911	Brian Shick 50 \| M \| Newaygo, MI, USA 3.462 3.462 Alex Walker M \| USA 3.320 3.320

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.659 2.659 David Koski M \| USA 3.513 3.513	0 011 1< 01< 011	Roger Gerstle M \| USA 3.864 3.864 Thomas Yax M \| USA 3.864 3.864

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.925 2.925 David Koski M \| USA 3.779 3.779	1< 116 0 10> 116	Tim Campbell M \| USA 3.150 3.150 Arik May M \| USA 3.260 3.260

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.788 2.788 David Koski M \| USA 3.643 3.643	0 511 1< 01< 511	Blake Cupp M \| USA 3.469 3.469 Hudson Maxa 17 \| M \| MI, USA 3.793 3.793

Salute & Smash
Nov 9 2025 Doubles	Mathias Koski M \| USA 2.857 -0.030 2.827 Christine Roberts F \| USA 3.422 -0.019 3.403	0 415 1< 01< 415	Kathryn Koski F \| USA 3.364 +0.033 3.397 David Koski M \| USA 3.652 +0.030 3.682

Nov 9 2025 Doubles	Mathias Koski M \| USA 2.912 -0.055 2.857 Christine Roberts F \| USA 3.455 -0.033 3.422	0 211 1< 01< 211	Kathryn Koski F \| USA 3.303 +0.061 3.364 David Koski M \| USA 3.597 +0.055 3.652

Nov 9 2025 Doubles	Mathias Koski M \| USA 2.810 +0.102 2.912 Christine Roberts F \| USA 3.395 +0.060 3.455	1< 114 0 10> 114	Sarika Craigie 49 \| F \| MI, USA 3.194 -0.027 3.167 Dennis Granowicz 54 \| M \| Macomb, MI, USA 3.770 -0.026 3.744

Nov 9 2025 Doubles	Mathias Koski M \| USA 2.856 -0.047 2.810 Christine Roberts F \| USA 3.422 -0.027 3.395	0 1113 1< 01< 1113	Cheryl Witherspoon F \| USA 2.738 +0.058 2.795 Mark Witherspoon M \| USA 2.919 +0.058 2.977

Great Lakes Open

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.679

David Koski

M | USA

3.533

1210

10>

1210

Rob Brethauer

M | USA

2.946

Brian Call

50 | M | Saginaw, MI, USA

2.946

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.693

David Koski

M | USA

3.547

511

01<

511

Mitchell Petz

44 | M | Denver, CO, USA

3.530

Scott Lint

66 | M | Mesick, MI, USA

3.493

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.709

David Koski

M | USA

3.563

911

01<

911

Brian Shick

50 | M | Newaygo, MI, USA

3.462

Alex Walker

M | USA

3.320

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.659

David Koski

M | USA

3.513

011

01<

011

Roger Gerstle

M | USA

3.864

Thomas Yax

M | USA

3.864

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.925

David Koski

M | USA

3.779

116

10>

116

Tim Campbell

M | USA

3.150

Arik May

M | USA

3.260

Aug 15 2026

Doubles

Mathias Koski

M | USA

2.788

David Koski

M | USA

3.643

511

01<

511

Blake Cupp

M | USA

3.469

Hudson Maxa

17 | M | MI, USA

3.793

Salute & Smash

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.857

-0.030

2.827

Christine Roberts

F | USA

3.422

-0.019

3.403

415

01<

415

Kathryn Koski

F | USA

3.364

+0.033

3.397

David Koski

M | USA

3.652

+0.030

3.682

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.912

-0.055

2.857

Christine Roberts

F | USA

3.455

-0.033

3.422

211

01<

211

Kathryn Koski

F | USA

3.303

+0.061

3.364

David Koski

M | USA

3.597

+0.055

3.652

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.810

+0.102

2.912

Christine Roberts

F | USA

3.395

+0.060

3.455

114

10>

114

Sarika Craigie

49 | F | MI, USA

3.194

-0.027

3.167

Dennis Granowicz

54 | M | Macomb, MI, USA

3.770

-0.026

3.744

Nov 9 2025

Doubles

Mathias Koski

M | USA

2.856

-0.047

2.810

Christine Roberts

F | USA

3.422

-0.027

3.395

1113

01<

1113

Cheryl Witherspoon

F | USA

2.738

+0.058

2.795

Mark Witherspoon

M | USA

2.919

+0.058

2.977

Date	Team 1	Score	Team 2
Great Lakes Open
Aug 15 2026 Doubles	Mathias Koski M \| USA 2.679 2.679 David Koski M \| USA 3.533 3.533	1< 1210 0 10> 1210	Rob Brethauer M \| USA 2.946 2.946 Brian Call 50 \| M \| Saginaw, MI, USA 2.946 2.946

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.693 2.693 David Koski M \| USA 3.547 3.547	0 511 1< 01< 511	Mitchell Petz 44 \| M \| Denver, CO, USA 3.530 3.530 Scott Lint 66 \| M \| Mesick, MI, USA 3.493 3.493

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.709 2.709 David Koski M \| USA 3.563 3.563	0 911 1< 01< 911	Brian Shick 50 \| M \| Newaygo, MI, USA 3.462 3.462 Alex Walker M \| USA 3.320 3.320

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.659 2.659 David Koski M \| USA 3.513 3.513	0 011 1< 01< 011	Roger Gerstle M \| USA 3.864 3.864 Thomas Yax M \| USA 3.864 3.864

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.925 2.925 David Koski M \| USA 3.779 3.779	1< 116 0 10> 116	Tim Campbell M \| USA 3.150 3.150 Arik May M \| USA 3.260 3.260

Aug 15 2026 Doubles	Mathias Koski M \| USA 2.788 2.788 David Koski M \| USA 3.643 3.643	0 511 1< 01< 511	Blake Cupp M \| USA 3.469 3.469 Hudson Maxa 17 \| M \| MI, USA 3.793 3.793

Salute & Smash
Nov 9 2025 Doubles	Mathias Koski M \| USA 2.857 -0.030 2.827 Christine Roberts F \| USA 3.422 -0.019 3.403	0 415 1< 01< 415	Kathryn Koski F \| USA 3.364 +0.033 3.397 David Koski M \| USA 3.652 +0.030 3.682

Nov 9 2025 Doubles	Mathias Koski M \| USA 2.912 -0.055 2.857 Christine Roberts F \| USA 3.455 -0.033 3.422	0 211 1< 01< 211	Kathryn Koski F \| USA 3.303 +0.061 3.364 David Koski M \| USA 3.597 +0.055 3.652

Nov 9 2025 Doubles	Mathias Koski M \| USA 2.810 +0.102 2.912 Christine Roberts F \| USA 3.395 +0.060 3.455	1< 114 0 10> 114	Sarika Craigie 49 \| F \| MI, USA 3.194 -0.027 3.167 Dennis Granowicz 54 \| M \| Macomb, MI, USA 3.770 -0.026 3.744

Nov 9 2025 Doubles	Mathias Koski M \| USA 2.856 -0.047 2.810 Christine Roberts F \| USA 3.422 -0.027 3.395	0 1113 1< 01< 1113	Cheryl Witherspoon F \| USA 2.738 +0.058 2.795 Mark Witherspoon M \| USA 2.919 +0.058 2.977

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Great Lakes Open

Mathias Koski

David Koski

Rob Brethauer

Brian Call

Mathias Koski

David Koski

Mitchell Petz

Scott Lint

Mathias Koski

David Koski

Brian Shick

Alex Walker

Mathias Koski

David Koski

Roger Gerstle

Thomas Yax

Mathias Koski

David Koski

Tim Campbell

Arik May

Mathias Koski

David Koski

Blake Cupp

Hudson Maxa

Salute & Smash

Mathias Koski

Christine Roberts

Kathryn Koski

David Koski

Mathias Koski

Christine Roberts

Kathryn Koski

David Koski

Mathias Koski

Christine Roberts

Sarika Craigie

Dennis Granowicz

Mathias Koski

Christine Roberts

Cheryl Witherspoon

Mark Witherspoon

Mathias Koski

David Koski

Rob Brethauer

Brian Call

Mathias Koski

David Koski

Mitchell Petz

Scott Lint

Mathias Koski

David Koski

Brian Shick

Alex Walker

Mathias Koski

David Koski

Roger Gerstle

Thomas Yax

Mathias Koski

David Koski

Tim Campbell

Arik May

Mathias Koski

David Koski

Blake Cupp

Hudson Maxa

Mathias Koski

Christine Roberts

Kathryn Koski

David Koski

Mathias Koski

Christine Roberts

Kathryn Koski