About Gregg


About WISKO Racing

WISKO Racing was born from the desire to support drivers of all experience levels and age groups achieve their goals. Motorsport can be a daunting environment to navigate when starting out. If your a teenage karting sensation, or someone who has devoted many years to growing your family, profession or business - WISKO is here to listen, understand and then help you realize your maximum potential.

From track day beginner to multi-championship winning driver, if your under our tent we will do everything we can to increase your probability of success. We can help you climb to the next level of performance through coaching, data analysis and a hands on approach combined with many years experience successfully running Radical cars. No one knows Radicals like WISKO. ​

The WISKO team has passionate staff who want you to have an incredible experience before, during and after every track session.

About Radical Cup North America

The Radical Cup North America series is the continent’s premier Radical championship, offering multi-class Le Mans style racing for a fraction of the price at iconic circuits including current and former F1 and INDYCAR venues.

Ample practice, qualifying and three 40-minute races as well as trackside hospitality and social events ensures each three-day Radical Cup event is action packed, both on and off the track. Sanctioned by USAC, the series will be showcased at a number of INDYCAR events in 2023. The Radical Cup caters to drivers from novice to veteran, karters looking for the next step in their career and country club or regional racers looking to step up to true national competition. The series has a growing list of impressive alumni including multiple Le Mans drivers as well as national and international champions.

Radical is the only prototype manufacturer to offer a premium factory supported single-make series on multiple continents, all with GT eclipsing performance but without approaching anything like a GT budget. The on-track competition in the Radical Cup is matched by the off-track camaraderie, and we pride ourselves on the family feel of our paddock, where privateer and family efforts are just as welcome as professional and dealer teams.