2010-11: Filip Pyrochta played for the Bili Tygri Liberec club in the Czech Republic. He scored 2 goals and was -2 in five games with the Bili Tygri U18 team and was +24 with 1 goal, 2 assists and 18 penalty minutes in 26 games for the U16 squad.
2011-12: Pyrochta split the year between Bili Tygri Liberec's U18 and U16 teams and played for the Czech U16 team. He scored 10 goals with 9 assists and was +20 with 12 penalty minutes in 36 regular season games and was +2 with 1 assist and 2 penalty minutes in seven U18 playoff games. Pyrochta scored 14 goals with 19 assists and was +33 with 26 penalty minutes in 33 games for the Liberec U16 team.
2012-13: Pyrochta made his debut in Czech men's hockey late in the year after playing for Bili Tygri's U20 team and played for the Czech Republic in the 2012 World Junior A Challenge and the 2013 U18 World Junior Championship. He had no points and 2 penalty minutes in one regular season game for HC Benatky nad Jizerou in the Czech second league and played in four games during the relegation playoffs; recording an assist and finishing -2 with 2 penalty minutes. Pyrochta scored 4 goals with 11 assists in 38 regular season games and was -9 with 28 penalty minutes with Bili Tygri Liberec's U20 team. In five playoff games he had 2 assists and 2 penalty minutes. He had 1 assist and 2 penalty minutes in four games with the Czech U19 team at the WJAC and had 1 assist with 2 penalty minutes at the U18 WJC. Pyrochta was selected by Dinamo Riga in the second round (39th overall) in the 2013 KHL Draft.
2013-14: Pyrochta played for HC Benatky nad Jizerou most of the season and played with Bili Tygri's U20 and U18 teams — winning a Czech championship with the Liberec U18 team. He played for the Czech Republic in the 2012 World Junior A Challenge and skated for the U18 team in the 2013 Ivan Hlinka Memorial Tournament and the 2014 World Junior Championship. He scored 1 goal with 5 assists and was -4 with 26 penalty minutes in 38 regular season games and was -1 with no points and 4 penalty minutes in six playoff games for HC Benatky. Pyrochta scored 4 goals with 10 assists and was -7 with 28 penalty minutes in 15 games, including four playoff games, with Bili Tygri's U20 team. He scored 3 goals with 3 assists and was +10 with 4 penalty minutes in six games during the U18 playoffs. Pyrochta had no points and 4 penalty minutes at the WJAC. In four games at the Ivan Hlinka tournament he scored 1 goal with 2 assists and was +3 with 4 penalty minutes. He was an assistant captain at the WJC and scored 1 goal with 2 assists, finishing -1. The Czech Republic defeated Canada in the semifinals before falling to the USA in the gold medal game. Pyrochta was ranked 38th amongst European skaters in Central Scouting's final rankings prior to the 2014 NHL Draft.
Pyrochta, the next Marek Židlický as said by a Czech junior hockey coach, is a mobile defenseman with a knack for making big plays on the blue line. He's a good power-play leader who has all the tools that power play quarterbacks need – a rocket of a shot, great vision and also the ability to race back and shut down a potential breakaway. The 6-foot blueliner from Třebíč, Czech Republic used to be a physical presence in juniors but is now a solid offensive-minded defender who does his job in his own end, but his small frame limits him on using his stick and smarts to take away the puck. While he is not the fastest of skaters, he's been able to move the puck effectively and can change the flow of the game in a moment.