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STAFF DIRECTORY

The best staff in Grassroots basketball

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GREG KRISTOF

Co-Founder

greg@zerogravitybasketball.com

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STEVE GIBBS

Co-Founder

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JASON SMITH

Director of Basketball Operations

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jsmith@zerogravitybasketball.com

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SCOTT GEERLING

Director of Business Development

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scottg@zerogravitybasketball.com

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ANDREW TUTHILL

Regional Director, Southern New England

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andyt@zerogravitybasketball.com

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KELSEY BRADBURY

Regional Director, Northern New England

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kbradbury@zerogravitybasketball.com

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ZACH SISERA

Regional Director, Mid-Atlantic

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zachs@zerogravitybasketball.com

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HUNTER STRATTON

Regional Director, Capital and Midwest

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hunter@zerogravitybasketball.com

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Dean Smith

Regional Director, Tri-State

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Dean.Smith@Zerogravitybasketball.com

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Zach Chapman

Director of Operations

ZacharyC@zerogravitybasketball.com

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KELSEY WITKAY

Associate Regional Director, Southern New England

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Kelsey.Witkay@ZeroGravityBasketball.com

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Steve Haladyna

Director, Zero Gravity XL

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Steve.Haladyna@zerogravitybasketball.com

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Kevin Querusio

Associate Regional Director, New England

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Kevin.Querusio@zerogravitybasketball.com

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Haylea Verrastro

Associate Regional Director, New England

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Haylea.Verrastro@zerogravitybasketball.com

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Aser Ghebremichael

Associate Regional Director, DMV

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Aser@zerogravitybasketball.com

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Owen Willis

Associate Regional Director

Owen.Willis@zerogravitybasketball.com

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GREG KRISTOF

Co-Founder

Gregory Kristof is the Co-founder and a managing partner at Zero Gravity Basketball. He is responsible for overseeing the company’s business development, as well as the event management for more than 200 events a year.

Kristof is a 2004 Cum Laude graduate of Brandeis University, with concentrations in Economics, International Business and Sociology. Kristof was a four-year letter winner on the Men’s Varsity Basketball team where he was also a two-year captain and made the University Athletic Association All-Academic team for three years. From 2006-2012, Kristof was the head coach at The Brimmer and May School in Chestnut Hill, where he won over 120 games in a six-year span. More importantly, he placed 7 of his players at NCAA Division I collegiate programs at schools such as: Harvard University, Bryant, Fordham, Northeastern, and The University of Hartford.

In 2010, Kristof and Co-founder, Steve Gibbs, Founded Zero Gravity Basketball with the mission of improving opportunities for basketball players of all ages and abilities. Since the founding, Zero Gravity has seen unparalleled growth in the grassroots basketball industry. The company now operates in 23 states and has entered in strategic partnerships with the best sports complexes and facilities along the East Coast to produce the highest quality tournaments available in youth sports.

In addition to Kristof’s role as the Co-founder and managing partner at Zero Gravity Basketball, he also serves as the director of the prestigious All Academic Camp, which draws over 120 college coaches to evaluate at each summer.

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STEVE GIBBS

Co-Founder

Steve Gibbs is the Co-founder and a managing partner at Zero Gravity. He is responsible for managing all of the day-to-day business and event operations of the organization for more than 200 events a year.

Gibbs is a 2007 Graduate of the Mark H. McCormack Department of Sport Management & Isenberg School of Management at the University of Massachusetts Amherst. While at UMass, Gibbs served in multiple roles for their NCAA Division I Athletic Department. This included time on both the Athletic Marketing Staff and the External Operations and Sales side. In addition to working for the Minutemen’s Athletic Department, Gibbs served as an assistant to Sports Lawyers Association President, Glenn M. Wong. He helped in the development of Careers in Sports; a book dedicated to helping young students break into the sports industry.

After graduation from UMass, Gibbs joined the Boston College Athletic Operations staff. He was responsible for assisting in the event operations efforts of nine NCAA Division I varsity programs During this tenure, Gibbs also assisted in the management and operations of the ACC Field Hockey Championship Tournament, Women’s Basketball NIT and the NCAA Tournament for both Men’s and Women’s Soccer. Gibbs was also in charge of recruiting and managing the BC Athletic Operations Student Work Program and High School Intern Program.

In 2010, Gibbs and Co-Founder, Gregory Kristof, Founded Zero Gravity Basketball with the mission of improving opportunities for basketball players of all ages and abilities. Since the founding, Zero Gravity has seen unparalleled growth in the grassroots basketball industry. The company now operates in 23 states and has entered in strategic partnerships with the best sports complexes and facilities along the East Coast to produce the highest quality tournaments available in youth sports.

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JASON SMITH

Director of Basketball Operations

Jason started his ZG career as a Co-Op during the Spring of 2018. After eight months, he left for a Graduate Assistant position on the Men’s Basketball Staff at Arizona State University for Coach Bobby Hurley and Associate Head Coach Rashon Burno. During that season, the Sun Devils won their first NCAA Tournament game in Hurley’s tenure. After one season, Jason had opportunities at the NBA level but ultimately decided to return to Zero Gravity.

Jason is the Director of ZGXL, an elite exposure circuit, and All-Academic Basketball, a national showcase and camp series, the first of its kind in the nation. His responsibilities at Zero Gravity include oversight of the New England region, all of Zero Gravity’s exposure events and other big picture company objectives. Jason graduated from the Isenberg School of Management at UMass Amherst in 2017 with a degree in Sports Management and grew up in nearby Andover, Massachusetts.

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SCOTT GEERLING

Director of Business Development

Scott joined the ZG team in 2018 upon graduating from Arizona State University. While at Arizona State, Scott worked as a student manager for Bobby Hurley and the men’s basketball staff. He spent his final two years serving the program as Head Manager, and in his senior year was apart of the Sun Devil’s first NCAA Tournament team since 2014. Scott graduated from Arizona State in 2018 with degrees in Business Marketing and Business Management.

Scott’s responsibilities with Zero Gravity include managing Adidas events, oversight of full-time staff and working with the CEO/CFO on market strategies and long term company goals. Scott was raised in Reno, Nevada where he was a three year varsity basketball player.

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ANDREW TUTHILL

Regional Director, Southern New England
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KELSEY BRADBURY

Regional Director, Northern New England
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ZACH SISERA

Regional Director, Mid-Atlantic
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HUNTER STRATTON

Regional Director, Capital and Midwest
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Dean Smith

Regional Director, Tri-State
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Zach Chapman

Director of Operations
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KELSEY WITKAY

Associate Regional Director, Southern New England
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Steve Haladyna

Director, Zero Gravity XL
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Kevin Querusio

Associate Regional Director, New England
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Haylea Verrastro

Associate Regional Director, New England
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Aser Ghebremichael

Associate Regional Director, DMV
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Owen Willis

Associate Regional Director

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