Marcin Szymański participated many times in the final tournaments for the Polish Youth Chess Championships in all age groups.

In 1998 he won silver in Krynica-Zdrój, and in 1999[1] in Nowa Ruda the gold medal in the Polish Youth Chess Championship in U16 age groups.

[5] In 2023 Marcin Szymański won the Daily Chess Championship[broken anchor] organized on the chess.com platform.

[7] Marcin Szymański achieved the highest rating in his career so far on July 1, 2005, with a score of 2435 points, he was ranked 36th among Polish chess players.

[8] Marcin Szymański's sister Maria is also a chess player and holds the title of Women's International Master (WIM).