Oday 28vsOday 30
Two Oday models · used asking prices, listed in the US
At the same age, the Oday 30 asks 10% more than the Oday 28; on the headline Gauge Values it asks 6.3% more, which mixes ages: its boats are older (median build year 1980 against 1983). Neither has a published depreciation curve yet, so we can't say which holds its value better.
same age · 5 shared build years · 11 and 9 boats in them · Indicative · in today’s prices · asking, not sold
Head to head
The better figure on each line is in orange. Where either side has too few boats, we say so rather than pick a winner.
Year by year
Each build year's Gauge Estimate, for the 5 years both have boats in. Pooled across those years (11 and 9 boats), the Oday 30 asks 10% more than the Oday 28.
What your budget buys
At £8,500, only the Oday 28 has a build year within reach.
A year of ownership
Each at its Gauge Value, on a South Coast marina berth, 44 engine hours a year (the median of 103 UK-listed sailing boats that report hours). An estimate in pounds from published rates, not a quote.
Each line is the middle of the cited range, to the nearest fifty pounds. Depreciation is a year of age on each model's published curve, at its Gauge Value, and stays out of the totals.
Neither model has a published depreciation curve, so depreciation is withheld on both sides.
Fuel is left out of both totals: for the Oday 28, fewer than three of its listings give the engine power.
Sources: Lake Yard price list 2026 · BerthFinder · Boatsetter · Velos Insurance; Admiral Yacht Insurance · Boating Magazine, "Calculating Boat Fuel Consumption" · Littlehampton Marina fuel prices
Specification
Questions
Which is cheaper, the Oday 28 or the Oday 30?
At the same age the Oday 28 is cheaper: the Oday 30 asks 10% more than the Oday 28 across 5 shared build years. Their Gauge Values, the median asking prices of all the boats we observed whatever their age, are £8,000 and £8,500.
Which holds its value better?
We can't say yet: neither has a published depreciation curve, and we fit one from at least 20 boats across six build years and publish it only when the fit holds. We have 12 Oday 28 boats across 6 build years. We have 10 Oday 30 boats across 6 build years.
Which spends less time on the market?
Too few boats of either were seen on two dates to say how long they stay listed. We don't measure time to sell yet.
How do you compare them like for like?
We compare boats of the same build year. For each of the 5 years both models have boats in, we take the ratio of their median asking prices in today's prices, then pool the years, giving more weight to years with more boats on both sides. The figure is Indicative because the thinner side has 9 boats in those years. The Gauge Values compare the whole fleets instead, so they mix boats of different ages.