When two boats share the same hull type — in this case both the Fish-Rite Kenai Series 2009 and the Fish-Rite Rivermaster 21 ft. 2007 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?
Size is the most obvious dividing line here. The Fish-Rite Rivermaster 21 ft. 2007 measures 21,0 feet overall (2007), giving it roughly 19,0 additional feet of deck space compared to the Fish-Rite Kenai Series 2009 at 2,0 feet (2009). At 13 lbs and 13 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. 2007 tops out at 225 hp. Engine specs for the Fish-Rite Kenai Series 2009 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 2 gal and 3 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Fish-Rite Rivermaster 21 ft. 2007 is rated for 6 passengers, while the Fish-Rite Kenai Series 2009 caps at 1. 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. 2007 could be the deciding factor.
Bottom line: Choose the Fish-Rite Rivermaster 21 ft. 2007 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 Kenai Series 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.