Both the Duckworth 19 2010 and the Duckworth 20 Sport 2011 are deep-V designs, both built in aluminium, so 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?
On paper these two are close siblings in the size department - Duckworth 19 2010 at 19,0 ft versus Duckworth 20 Sport 2011 at 21,9 ft. Weight tells a clearer story for trailering families: the Duckworth 19 2010 tips the scales at 2 500 lbs - 865 lbs more than the Duckworth 20 Sport 2011 at 1 635 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The Duckworth 20 Sport 2011 tops out at 150 hp. Engine specs for the Duckworth 19 2010 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Duckworth 19 2010 carries 62 gallons versus 42 gallons in the Duckworth 20 Sport 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Duckworth 20 Sport 2011 is rated for 6 passengers, while the Duckworth 19 2010 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth 20 Sport 2011 could be the deciding factor.
Bottom line: Choose the Duckworth 20 Sport 2011 if your priority is putting more people on the water - it handles 6 passengers and at 21,9 ft it has the deck room to back that rating up comfortably. The Duckworth 19 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.