The Hungarian Under-21 goalkeeper joined the League One outfit on a month's loan on Friday and stepped straight into the starting line-up against Huddersfield.
The Spireites won it 2-1 thanks to two penalties from Shane Nicholson and manager Roy McFarland was clearly happy with Marton's performance.
"I was pleased with him, he did very well," he told Chesterfield's official website. "Overall his handling was excellent and his presence was there for all to see."
Marton Fulop made quite an impression on his Football League debut for Chesterfield on Saturday.