How to Build an Offshore Trolling Spread

Set up a productive offshore trolling spread for mahi, tuna, and wahoo. Learn lure positions, speeds, and patterns that catch fish.

Moon Tide Tackle

•Monday, August 3, 2026•6 min read

 

How to Build an Offshore Trolling Spread

Building an effective offshore trolling spread is part science, part art. Get it right and you'll be pulling mahi, tuna, and wahoo out of the spread all day. Get it wrong and you'll spend hours dragging lures through empty water. This guide breaks down exactly how to set up a spread that produces fish.

Understanding the Basics of a Trolling Spread

A trolling spread is the arrangement of lures you pull behind the boat at trolling speed. The goal is to create the illusion of a school of baitfish fleeing from a predator — which is your boat. When pelagic fish see this, their instinct kicks in and they attack.

A well-designed spread covers different distances and depths behind the boat, presents multiple lure types and colors, and creates a realistic bait school pattern in the wake. Most offshore anglers run 4–6 lines at a time, though tournament boats sometimes run more.

The Five Positions in a Standard Spread

1. Short Rigger (30–50 feet back)

The short rigger lines run closest to the boat on each side. This is prime real estate in the spread — the white water from your wake creates a turbulent, bubbly zone that fish associate with baitfish activity. Run your most visible, high-action lures here.

Best lures: Trolling birds, chugger heads, bright-colored rubber squid

2. Long Rigger (80–120 feet back)

The long rigger lines run further back on each side, outside the main wake. Fish that are spooked by the boat's noise often come in from the sides and hit the long riggers. These lines see a lot of action on pressured fish.

Best lures: Rubber squid, skirted ballyhoo, natural-colored lures

3. Short Corner (50–70 feet back)

The corner lines run straight back from the stern corners. They sit in the prop wash — the churned-up water directly behind the engines. This turbulent zone is a fish magnet. The corners are often your most productive positions.

Best lures: Chugger heads, rubber squid, any lure with good action in rough water

4. Long Corner (100–150 feet back)

The long corner lines run further back from the stern, outside the prop wash. They present a calmer, more natural look to fish that are hanging back from the commotion.

Best lures: Natural-colored squid, skirted lures, ballyhoo

5. Shotgun (200+ feet back)

The shotgun line runs straight back from the center of the boat, far behind the rest of the spread. It targets fish that are following the spread from a distance. Many big fish — especially wahoo — are caught on the shotgun.

Best lures: High-speed wahoo lures, natural-colored squid, diving plugs

Choosing the Right Lures for Each Position

The key to a productive spread is variety. You want different sizes, colors, and action types working together to appeal to different fish and different moods.

A solid 5-lure spread might look like this:

• Short rigger left: 9" Hot Pink Rubber Squid
• Short rigger right: Trolling Bird with 9" Green Rubber Squid trailer
• Short corner left: Chugger Head in Blue/Pink/White
• Short corner right: Chugger Head in Green/Chartreuse
• Shotgun: 9" Black or Purple Rubber Squid

This spread covers multiple colors, multiple depths, and multiple action types. If the fish want something specific, you'll figure it out quickly and can adjust.

Trolling Speed

Speed is critical. Most offshore lures perform best between 6 and 9 knots. Here's a general guide:

• 6–7 knots: Best for rubber squid, skirted ballyhoo, natural presentations
• 7–8 knots: All-around sweet spot for most offshore lures
• 8–9 knots: Chugger heads, trolling birds, high-action lures
• 9–12 knots: Wahoo-specific high-speed lures

When you're not sure, start at 7.5 knots and adjust based on how your lures are running. Watch each lure from the stern — it should be swimming, not skipping or sinking.

Reading the Water

The best spread in the world won't catch fish if you're not in the right water. Here's what to look for:

Color changes: The line where blue water meets green water is a natural bait aggregation zone. Work these edges hard.

Weed lines: Floating sargassum weed holds baitfish, which holds mahi. Run your spread along weed lines and through weed patches.

Temperature breaks: A 2–3 degree temperature change can concentrate fish. Use your chartplotter's sea surface temperature overlay to find these breaks.

Birds: Diving birds mean baitfish near the surface, which means predators below. Head toward any bird activity you see.

Current edges: Where two currents meet, bait gets pushed together. These convergence zones are prime trolling territory.

Adjusting Your Spread When Fish Are Picky

Some days the fish are aggressive and will hit anything. Other days they're finicky and you need to make adjustments. Here's how to troubleshoot a slow spread:

Change colors first. If you've been running bright colors without a bite, switch to natural tones. If you've been running naturals, go bright.

Change depths. Add a diving lure or weighted rig to get something running deeper in the water column.

Change speed. Slow down or speed up by half a knot and see if that triggers a bite.

Shorten your lines. Sometimes fish are right in the prop wash and your lures are running too far back.

Add a teaser. A daisy chain teaser with no hook draws fish into the spread and gets them fired up. Once they're in the zone, they'll hit your hooked lures.

Safety Tips for Managing a Spread

Running multiple lines at once requires discipline to avoid tangles and accidents:

• Always reel in lines before making sharp turns
• When a fish is hooked, clear the other lines quickly to avoid tangles
• Use different length leaders on each position to keep lures from crossing
• Mark your line lengths with a marker or use different colored line to identify each position

Build Your Spread with Moon Tide Tackle

Now that you know how to set up a spread, it's time to stock your tackle box. Our trolling birds, chugger heads, and rubber squid are designed to run true at trolling speed and trigger strikes from the biggest pelagics in the ocean. Mix and match colors to build a spread that covers all the bases.

Get out there, find the right water, and let the spread do the work. Tight lines.