Game. Set. Match. Come out on the winning side in the all-new GP Challenge Pro. Designed for baseline back-and-forth boGame. Set. Match. Come out on the winning side in the all-new GP Challenge Pro. Designed for baseline back-and-forth bolts and daring dashes to the net, it has the needed speed and stability to help your game go the distance.ts and daring dashes to the net, it has the needed speed and stability to help your game go the distance.