The home rider finished third behind Martin Vaculik and eventual world champion Chris Holder in the corresponding event at the Edward Jancarz Stadium last year.
The 18-year-old, who also races for Swedish Elitserien champions Vetlanda, managed 13 points last season.
Zmarzlik's Gorzow SGP team-mates Adrian Cyfer and Lukasz Cyran will serve as track reserves.
Meanwhile, double world champion Greg Hancock admits Russian sensation Emil Sayfutdinov is going to take some stopping.
The Californian trails Sayfutdinov by 24 points in the race for the title ahead of round six in Gorzow on June 15.
He said: “The last few rounds have definitely been below-par for me so all I can do is keep battling away.
"There are still a lot of rounds to go, but it’s not an easy challenge.
“Emil is a man on a mission and I know how it is to be in that mode. When you’re on, you’re on, so good for him and it’s up to us to bring him back down. But it’s not going to be easy.”
- Sports & Recreation
- Emil Sayfutdinov
- Chris Holder