At the circuit of Tor Poznan the fourth round of the S2 Championship is held this weekend. After a few days of bad and cold weather conditions the crowd enjoyed the practices in sunny and warmer conditions. In S2 it was Italian rider Diego Monticelli who was the fastest on his factory TM. The leader of the 2016 S2 European championship, Suzuki Grau rider Petr Vorlicek started his race weekend perfectly with the fastest time on the final lap in the first free practice in the S2 class. Behind the Czech rider it was his fellow countryman TMS Honda rider Milan Sitniansky who set the second fastest time 00.430 seconds behind Vorlicek. Third place was for Gazza Racing rider Luca Ciaglia in this first session. Diego Monticelli and Giovanni Bussei were placed back ten positions because of disrespecting the red crossed medical flag. After his race win in Busca TM