When two boats share the same hull type — in this case both the Pro-Line 20 Sport 2009 and the Pro-Line 23 cc 2011 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Pro-Line 23 cc 2011 measures 23,0 feet overall (2011), giving it roughly 21,0 additional feet of deck space compared to the Pro-Line 20 Sport 2009 at 2,0 feet (2009). At 26 lbs and 32 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 200 hp for the Pro-Line 20 Sport 2009 and 200 hp for the Pro-Line 23 cc 2011. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 7 gal and 7 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Pro-Line 23 cc 2011 is rated for 7 passengers, while the Pro-Line 20 Sport 2009 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Pro-Line 23 cc 2011 could be the deciding factor.
Bottom line: Choose the Pro-Line 23 cc 2011 if your priority is putting more people on the water — it handles 7 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Pro-Line 20 Sport 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.