Viper Challenge will be held at Sepang International Circuit in Malaysia on 17 and 18 August 2013. Participants will compete through fire, ice and mud in the 20km challenge which has more than 20 man-made obstacles.
Close to 8,000 participants have already signed up for the event and organisers are expecting last minute registrations before it closes on 8 August 2013. Visit http://viperchallenge.com/sg to signup.