When two boats share the same hull type — in this case both the Fish-Rite Rivermaster 21 ft. 2008 and the Fish-Rite Sportsman Cuddy 18 ft. 2008 are modified vee designs with aluminum 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?
On paper these two are close siblings in the size department — Fish-Rite Rivermaster 21 ft. 2008 at 21,0 ft versus Fish-Rite Sportsman Cuddy 18 ft. 2008 at 18,0 ft. At 13 lbs and 9 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.
The Fish-Rite Rivermaster 21 ft. 2008 carries a rated maximum of 225 hp. Engine data for the Fish-Rite Sportsman Cuddy 18 ft. 2008 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Fish-Rite Sportsman Cuddy 18 ft. 2008 carries 39 gallons versus 3 gallons in the Fish-Rite Rivermaster 21 ft. 2008. 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 Fish-Rite Rivermaster 21 ft. 2008 is rated for 6 passengers, while the Fish-Rite Sportsman Cuddy 18 ft. 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Fish-Rite Rivermaster 21 ft. 2008 could be the deciding factor.
Bottom line: Choose the Fish-Rite Rivermaster 21 ft. 2008 if your priority is putting more people on the water — it handles 6 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Fish-Rite Sportsman Cuddy 18 ft. 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.