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Oday 30
Designer: Hunt & Associates  ·  Builder: O'day Corp.  ·  First built: 1977
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About the Oday 30

First launched in the early 1980s, this 30-foot sailboat emerged from O'Day Corporation during their era of producing accessible family cruisers. Built with fiberglass construction typical of the period, the design emphasized comfortable coastal cruising over racing performance. The boat features a moderate beam and draft combination that strikes a balance between interior space and shoal-water accessibility, making it well-suited for exploring protected waters, harbors, and coastal areas. Her traditional fin keel configuration provides adequate stability for weekend adventures and short coastal passages, though serious offshore work would push beyond her intended design envelope. O'Day positioned this model as an entry-level family cruiser, targeting sailors who wanted comfortable accommodations without sacrificing reasonable sailing characteristics. The cockpit offers sufficient space for day sailing with family and friends, while the cabin provides basic amenities for overnight trips. Like many O'Day designs of this vintage, the boat prioritized affordability and practicality over cutting-edge performance or luxury appointments. This approach made sailing accessible to a broader audience, contributing to O'Day's reputation for producing dependable, no-nonsense cruising boats that could introduce new sailors to the sport without intimidation or excessive complexity.

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Market Price Estimate Beta
$7,500 – $19,900
typical asking price
Median $7,500  ·  5 listings used
All listings
$7,500 – $19,900 5
Rate a listing price
$
About this estimate
  • Prices are based on recent asking prices from public listings — not actual sale prices, which are typically lower.
  • Condition is not factored in. A well-maintained boat with new sails and engine can be worth significantly more than a project boat of the same model.
  • Location affects price. Boats in landlocked states or areas with fewer buyers often sell for less than those on the coast.
  • Year of manufacture is not filtered. Older examples of this model will generally be priced lower than newer ones.
  • Included equipment varies widely. A boat with a full suite of electronics, dodger, and new standing rigging may command a large premium.
  • Outliers are automatically excluded using statistical filtering to improve accuracy, but some bad data may remain.
Core Dimensions
LOA (Length Overall) 29.92 ft / 9.12 m
LWL (Waterline Length) 25.42 ft / 7.75 m
Beam 10.75 ft / 3.28 m
Max Draft 4.92 ft / 1.50 m
Displacement 10,500.00 lb / 4,763 kg
Ballast 4,200.00 lb / 1,905 kg
Sail Area (Reported) 441.30 ft² / 41.00 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Hunt & Associates
Builder O'Day Corp.
First Built 1977
Last Built 1984
Related Sailboats Catalina 30 · Hunter 30 · Tartan 30 · S2 92 C · Coronado 30
Owner Reviews

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Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
180
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
14.78
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
25.64
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
1.97
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 6.76
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
1.67
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 976.41
Rig Dimensions
I (Foretriangle Height) 39.75
J (Foretriangle Base) 13.5
P (Mainsail Luff) 33.75
E (Mainsail Foot) 10.25
SA Fore 268.31
SA Main 172.97
How It Compares

vs. Catalina 30, Coronado 30, Hunter 30, S2 92 C, Tartan 30

This boat Similar boats
Dimensions
LOA
Oday 30 ★
29.9 ft
Catalina 30
29.9 ft
Coronado 30
29.9 ft
Hunter 30
29.9 ft
S2 92 C
29.9 ft
Tartan 30
29.9 ft
LWL
Oday 30 ★
25.4 ft
Catalina 30
25.0 ft
Coronado 30
24.0 ft
Hunter 30
25.6 ft
S2 92 C
25.0 ft
Tartan 30
24.3 ft
Beam
Oday 30 ★
10.8 ft
Catalina 30
10.8 ft
Coronado 30
10.1 ft
Hunter 30
10.8 ft
S2 92 C
10.3 ft
Tartan 30
10.0 ft
Displacement
Oday 30 ★
10 lbs
Catalina 30
10 lbs
Coronado 30
8 lbs
Hunter 30
9 lbs
S2 92 C
9 lbs
Tartan 30
8 lbs
Ballast
Oday 30 ★
4 lbs
Catalina 30
4 lbs
Coronado 30
2 lbs
Hunter 30
3 lbs
S2 92 C
4 lbs
Tartan 30
3 lbs
Sail Area
Oday 30 ★
441 sq ft
Catalina 30
446 sq ft
Coronado 30
408 sq ft
Hunter 30
417 sq ft
S2 92 C
468 sq ft
Tartan 30
449 sq ft
Performance
PHRF Rating (lower = faster)
Oday 30 ★
180 s/nm
Catalina 30
180 s/nm
Coronado 30
192 s/nm
Hunter 30
189 s/nm
S2 92 C
Tartan 30
171 s/nm
SA / Displacement (higher = more powerful)
Oday 30 ★
14.8
Catalina 30
15.2
Coronado 30
15.7
Hunter 30
14.5
S2 92 C
16.4
Tartan 30
17.0
Ballast / Disp (higher = stiffer)
Oday 30 ★
Catalina 30
41.2 %
Coronado 30
31.8 %
Hunter 30
39.4 %
S2 92 C
Tartan 30
41.1 %
Comfort Ratio (higher = more comfortable offshore)
Oday 30 ★
25.6
Catalina 30
24.9
Coronado 30
23.5
Hunter 30
S2 92 C
25.8
Tartan 30
24.3
Capsize Screening (lower = safer)
Oday 30 ★
1.97
Catalina 30
2.00
Coronado 30
1.97
Hunter 30
S2 92 C
1.92
Tartan 30
1.94
Displacement / Length (lower = lighter)
Oday 30 ★
Catalina 30
291
Coronado 30
274
Hunter 30
264
S2 92 C
Tartan 30
273
Hull Speed
Oday 30 ★
6.8 kts
Catalina 30
6.7 kts
Coronado 30
6.6 kts
Hunter 30
S2 92 C
6.7 kts
Tartan 30
6.6 kts
Speed Number (higher = faster)
Oday 30 ★
1.7
Catalina 30
1.6
Coronado 30
1.8
Hunter 30
S2 92 C
1.9
Tartan 30
2.0
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