2010-11: Maximilian Pajpach played for the HK SKP Poprad club in Slovakia – appearing in his first U18 game as a 15-year-old. He had a 1.19 goals against and .958 save percentage in his only U18 game.
2011-12: Pajpach skated for HK SKP Poprad’s U18 team — sharing the goaltending duties with 17-year-old Erik Gabler. In 34 games he had a 4.36 goals against and .881 save percentage on a team that finished 13th in the 16-team league; missing the playoffs.
2012-13: Pajpach appeared in one game with HK SKP Poprad’s U20 team — skating in 41 game’s with the club’s U18 squad — and played for Slovakia’s U17 team in the 2013 World Hockey Challenge. He did not allow a goal in his only U20 game and had a 3.09 goals against and .909 save percentage with Poprad’s U18 team. In three games at the WHC he had a 6.45 goals against and .848 save percentage.
2013-14: Pajpach played for Slovakia’s U18 team at the 2013 Ivan Hlinka Memorial Tournament before joining HK Orange (Slovakia’s national junior team program which has U20 and U18 teams in the Slovakia Extraliga and the second division). In two games at the U20 level Pajpach had a 7.06 goals against and .793 save percentage. Pajpach had better success in 14 games with the HK Orange U18 team; posting a 4.32 goals against and .793 save percentage. He played five games with HK SKP Proprad in the U20 regular season and two playoff games with the Proprad U18 team. In three games at the Ivan Hlinka tournament he was 0-3 with a 6.03 goals against and .868 save percentage. Pajpach was ranked ninth amongst international goaltenders in the final Central Scouting rankings and was selected by Colorado in the sixth round (174th overall) of the 2014 NHL Draft.