sentences:  Where boats do not race in One Design starts, the boat competes using the well-known PHRF handicapping system, and more recently in some cases in IRC (sailing).Using these handicapping systems, the Olson 30 is commonly pitted against other well-known racing designs such as the Melges 24, Soverel 33, and J/29.Because the Olson 30 is so light for its length and has a relatively overpowered (for its design's age) sail profile, the Olson 30 excels at light-air sailing.