2003 Grady-White Marlin 300

$109,000

Used

Boat in Saint Petersburg, FL 33712 US

builtBuilt in 2003
Year the boat was built
model

Marlin 300

Boat model
engine

2 Engines (2x --)

Engine type and count
length

30.5 feet

Overall boat length
fuel

Gas

Fuel type
material

Fiberglass/Reinforced

Hull material
Nominal Length
30.5ft
Length Overall
32.58ft
Beam
10.58ft
Max Bridge Clearance
9.75ft
Max Draft
1.58ft
Deadrise At Transom
20deg
Dry Weight
7000lb
Heads
1
Fresh Water Tanks
39gal
Fuel Tanks
306gal
Hull Material
fiberglass
Hull Shape
sea-v2
Engine 1
Total Power
250hp
Engine Hours
1400
Engine Type
outboard-4s
Fuel Type
gasoline
Engine 2
Total Power
250hp
Engine Hours
1400
Engine Type
outboard-4s
Fuel Type
gasoline
Electric Bilge Pump
Marine Head
Air Conditioning
Heating
Refrigerator
Battery Charger
Depthsounder
Radar
Plotter
Autopilot
Compass
Gps
Vhf
Shore Power Inlet
Generator
Manufacturer Provided Description
No description
Engine Notes
Horsepower listed is the maximum available for this rig. Other engine options are available.
Disclaimer
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Price History

DateEventPrice
6/28/25Initial price$109,000

Contact SYS Yacht Sales St. Petersburg

5821 32nd Way South, St. Petersburg, FL, 33712

Boattest.com Review

Overview

The Grady White Marlin 300 is a classic offshore walkaround boat that blends the features of an express fishing boat with the fishing amenities typically found on center consoles. Unlike many center consoles, it offers overnight accommodations, making it a versatile and family-friendly vessel. Measuring 30 feet 6 inches in length overall with a beam of 10 feet 7 inches, the Marlin 300 provides a spacious and stable platform for offshore fishing and extended trips.

Exterior Design and Cockpit

The Marlin 300 features a hull draft of 23 inches and a closed foredeck with a protected bridge and high windshield, which effectively shed green water in rough seas, ensuring a dry and safe ride offshore. The cockpit is designed with fishing in mind, offering 8 feet 10 inches of space from bolster to bolster and 6 feet 6 inches from the transom to the bait prep station, allowing ample room for multiple anglers to move and fish comfortably. The cockpit is 28 inches deep, with large bolsters and sturdy tow rails enhancing safety. Storage is well thought out, including rod storage under the gunnels and multiple rod holders on the cap rails and hardtop. The transom includes a door leading to a stern platform with a four-step ladder and grab rail for easy water access. Additional features include a freshwater shower wand, shore power connections, engine freshwater flush attachments, washdown hoses, battery switches, and circuit breakers housed in a dedicated compartment. The transom deck incorporates a cutting board over a storage compartment with pull-out tubs and battery storage below. A transom bench seat provides comfortable seating, and hatches grant access to the optional Fisher Panda 5 kW generator, pumps, seacock levers, water tanks, and a large insulated fish box.

Helm and Bridge Features

The helm deck is equipped with optional command chairs that are adjustable both vertically and horizontally, featuring ventilated backrests, swivel seats, flip-up bolsters and armrests, and fold-down footrests. Storage is integrated into the helm seats with locking drawers. The dash offers ample space for electronics and includes a Yamaha engine monitoring screen, compass, accessory switches, and a stainless steel tilt steering wheel. Controls for the twin Yamaha 300 horsepower V6 4.2-liter four-stroke outboards, trim tabs, stereo remote, and optional bow thruster are ergonomically positioned for ease of use. The fiberglass hardtop with a painted aluminum frame includes lockable storage boxes, storage nets, spreader lights, and opening side vents. Strata glass front and side curtains complete the enclosure, making the boat suitable for three-season use. Walk-around side decks with nine-inch bulwarks and tall rails provide safe access to the foredeck, which features a recessed design, a windlass with foot controls, a large hatch for the rode locker, and cushioned seating on the trunk cabin.

Interior Living Spaces

Below deck, the Marlin 300 offers comfortable accommodations suitable for overnight stays. The cabin includes a small galley to port equipped with a sink providing hot and cold running water, an electric stovetop set into a Corian countertop, a microwave, and a refrigerator. The bow features a dinette with a cherry wood table that converts into a V-berth. To starboard, there is an enclosed wet head with standing headroom, and a crawl-in mid-cabin contains a double berth, an opening port light, and rod holders. The interior is finished with a teak and holly sole and includes a six-gallon water heater and a 32-gallon fresh water tank, all standard equipment enhancing comfort and convenience.

Power and Performance

The test boat weighed an estimated 10,615 pounds with three people aboard, 39% fuel, and test power installed. Powered by twin 300 horsepower Yamaha V6 4.2-liter four-stroke outboards, the Marlin 300 achieved a top speed of 50 miles per hour at 5,900 RPM. The best cruise speed was 27.6 miles per hour at 3,500 RPM, delivering fuel efficiency of 1.5 miles per gallon and a range of approximately 390 statute miles with a 10% fuel reserve from its 282-gallon capacity. Acceleration was brisk, reaching planing speed in 3.3 seconds, 20 miles per hour in 3.9 seconds, and 30 miles per hour in 6.9 seconds. The hull’s 19.5-degree dead rise at the transom provided smooth handling through one-foot chop and 10-mile-per-hour gusting winds. Maneuverability was responsive and predictable, aided by the optional bow thruster and twin outboards, which facilitated easy docking and slip entry.

Conclusion

The Grady White Marlin 300 has been a mainstay in the brand’s lineup since 1989 for good reason. It offers a dry, secure, and comfortable platform suitable for families and anglers alike, combining offshore fishing capabilities with overnight accommodations. Its spacious cockpit, well-thought-out fishing amenities, protective design, and reliable performance make it a versatile vessel that meets the needs of a wide range of boaters. Overall, the Marlin 300 stands out as a well-rounded offshore walkaround that balances fishing functionality with cruising comfort.

Overview from around the web 2003 Grady-White Marlin 300

Customers praise the 2003 Grady-White Marlin 300 for its exceptional build quality and reliable performance

Many highlight its spacious and comfortable cockpit, making it ideal for both fishing and family outings. The boat’s stable ride and smooth handling in various sea conditions receive frequent commendations. Additionally, users appreciate the thoughtful layout, ample storage, and quality fishing amenities that enhance their experience on the water. Overall, the 2003 Marlin 300 is regarded as a versatile and durable vessel that meets the needs of serious anglers and recreational boaters alike.

The Biggest Pros and Cons

The 2003 Grady-White Marlin 300 is a well-regarded center console boat known for its blend of fishing capability and family-friendly features. Here are some of the pros and cons to consider:

Pros

Solid Construction: Grady-White is known for its durable, high-quality build, and the Marlin 300 is no exception, offering excellent seaworthiness and a smooth ride.

Spacious Layout: The 30-foot length provides ample deck space for fishing, entertaining, and comfort.

Fishing Features: Equipped with rod holders, a livewell, and fish boxes, it caters well to serious anglers.

Comfort and Amenities: Includes a cabin with sleeping accommodations, a head (toilet), and a galley area, making it suitable for overnight trips.

Power and Performance: Typically powered by twin outboard engines, it delivers good speed and maneuverability.

Versatility: Great for both offshore fishing and family cruising.

Cons

Fuel Consumption: With twin outboards and a larger size, fuel usage can be relatively high.

Maintenance Costs: As a quality boat with multiple systems, upkeep can be more expensive compared to smaller or simpler vessels.

Age Considerations: Being a 2003 model, some components may require updating or refurbishment depending on prior maintenance.

Storage: While spacious, storage below deck may be limited compared to larger cabin boats.

Made For

The 2003 Grady-White Marlin 300 is ideal for anglers and boating enthusiasts who seek a versatile and reliable offshore fishing boat. Designed for serious sportfishing, it offers a spacious cockpit, sturdy construction, and advanced features that make it perfect for both day trips and extended excursions on the water. Whether you're a seasoned fisherman or a family looking for a comfortable and safe boat for cruising and fishing, the Marlin 300 provides excellent performance, stability, and convenience.

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2003 Grady-White Marlin 300. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Saltwater Fishing cost in today's market, or how much does a Grady-White cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$690.23/mo
$
$
%
Principal Loan Amount$ 92,650
Total Payment$165,654.76

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2003 Grady-White Marlin 300. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Saltwater Fishing cost in today's market, or how much does a Grady-White cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$690.23/mo
$
$
%
Principal Loan Amount$ 92,650
Total Payment$165,654.76

Be the first to know when similar boats hit the market

Get notified when new boats become available

Boats For Sale in Florida, United States Similar to the 2003 Grady-White Marlin 300

Compare with similar boats and find the perfect one for you.

The Image of Manufacturer Provided Image - 02003 Grady-White Marlin 300
$109,000$109,000$99,100$84,990$135,000$82,499
Saint PetersburgPort Saint JoeKey LargoSteinhatcheeVero BeachStuart
31'30'34'30'31'30'
2'-----
-YamahaYAMAHA 350TohatsuYamahaYamaha
250 hp250 hp350 hp225 hp250 hp250 hp
805183166629828
Price
Location
Nominal Length
Draft
Engine Make
Total Engine Power
Days on Market

Other 2003 Grady-White Marlin 300 For Sale in Florida, United States

Meet the Broker

Address

5821 32nd Way South
St. Petersburg, FL 33712

Boat Location

Be the First to Know

Get notified when new boats become available.