maratońskim

maratońskim

"Maratońskim" means "marathon-like" or "pertaining to a marathon."

Here, "maratońskim" describes the pace ("tempem") as related to a marathon, denoting the adjective form specific to the noun "maraton."

Bieg maratońskim tempem wymaga dużej wytrzymałości.

Running at a marathon pace requires great endurance.

In this sentence, "maratońskim" modifies "biegu," specifying the type of run as a marathon run.

W tym roku spróbuję moich sił w biegu maratońskim.

This year, I will try my strength in the marathon run.

Here, "maratońskim" describes the training ("treningom"), indicating their intensive, long-duration quality typical of preparations for marathons.

Osiągnął sukces dzięki maratońskim treningom.

He achieved success thanks to marathon training.