IJSBA is alerting competitors of the updates for the 2018 Blowsion World Finals class list.  Women's Runabout 1100 Stock is added as an official class.  Runabout Naturally Aspirated Open is added as official class.  Please use this link to register for the 2018 Blowsion World Finals:  
https://www.ijsba.com/ijsba-world-finals-entryforms/.