How to Tie the GT Knot

Usage

The GT Knot is a braid-to-leader connection built specifically for fighting big fish. It's often used when targeting Giant Trevally, tuna, and other hard-fighting big-game species at heavy line class, where it scored 100% strength in an IGFA-tested contest — one of the strongest braid-to-leader knots on record. It shares the finger-trap mechanic of the FG Knot, with a different wrap topology and an important catch in how it's usually taught.

Why Learn the GT Knot?

Because the "100% strength" number most people quote only applies to one build at heavy line class, and most tutorials don't teach that build. Learning the real story here means knowing which knot you actually tied. The Knot IQ app lets you rotate a 3D model and step through it before you try it on real line.

Common Uses

• Giant Trevally & Tuna (Heavy Tackle): The knot's best-documented case — the Bimini-Twist-based construction scored 100% of line strength in the IGFA/Sport Fishing Magazine heavy-line test (50lb braid/80lb leader), beating the FG Knot's 82.1%.
• Offshore Popping & Jigging: A designed use case for heavy braid to thick mono or fluorocarbon shock leader.
• Heavy-Tackle Bottom Fishing: Grouper, amberjack, and similar hard-fighting species sit within the knot's tested heavy-line niche.
• Light-Tackle Connections (10–20lb Braid): Acceptable, not recommended. Salt Strong's test found the popular build only about 55% as strong as the FG Knot at light line, with outright slippage at 10lb braid/20lb mono. Use the FG Knot instead here.

ABOK Number (Ashley Book of Knots) N/A — this finger-trap family postdates Ashley's 1944 book, emerging alongside gel-spun braided lines in the 1990s onward. Other Names Giant Trevally Knot Category Fishing Bends Braid-to-Leader Knots

Notable Features

• Finger-Trap Grip: The leader's wraps compress a doubled braid loop, tightening rather than loosening under load — same working principle as the FG Knot, different wrap structure.
• Wrap Count Is Everything: Bear Essentials' read on the strength split: it isn't really about which "version" you tie — it's wrap count. Under roughly 30 initial wraps the finger-trap effect never fully engages, and a build that can score 100% at heavy line class will slip out entirely if it's rushed.
• Bulkier Than the FG: The doubled-loop construction uses more line and creates a bigger profile through the guides than its slimmer sibling.

Similar Knots

FG Knot vs. GT Knot

• Advantage: The FG Knot is slimmer, faster to tie, and more consistently corroborated across light and heavy line classes alike.
• Disadvantage: At heavy line class, the properly-built GT Knot has the single best measured result in this comparison — the FG doesn't beat that heavy-line ceiling.

The Alberto Knot, built from a modified Albright rather than a finger-trap, is another braid-to-leader option worth knowing — a good next knot once the GT and FG are down. We'll link its full how-to here once that guide is live.

Security Level

Security here depends on which build you tie and how many wraps go in. Under about 30 initial wraps, the finger-trap effect doesn't fully engage and the knot can pull out under hard load. Properly built at heavy line class, it's one of the most secure braid-to-leader connections available; at light line class, treat it as needing a backup plan, not a guaranteed hold.

Downsides

• Slow to Tie: Five minutes or more even with practice — 45–60 total wraps across two passes.
• Bulky Profile: Thicker through the guides than the FG Knot, costing casting distance.
• Not Beginner-Friendly: Many steps, many places to slip — a rushed tie won't warn you before it fails.
• No Untying: Once fully cinched, standard practice is cut and retie.

When Not to Use the GT Knot

Skip it for light-tackle connections (10–20lb braid class) unless you accept the documented slippage risk — the FG Knot is better-corroborated there. Also skip it if you're relying on a tutorial without confirming which build it teaches; tied wrong, this knot doesn't degrade politely.

History

Per knots.fish, the GT Knot was reportedly developed by Japanese offshore anglers needing a connection to withstand brutal runs from powerful pelagic species like the Giant Trevally it's named for — though no primary source corroborates the claim beyond that one page. The more consequential history is recent: in 2024, Sport Fishing Magazine's IGFA-tested knot challenge ranked the Bimini-Twist-based build #1 of 53 entrants in the heavy-braid division, beating the PR Bobbin Knot (99.5%) and Improved FG Knot (82.1%). Around the same time, Salt Strong's testing found the popular tutorial build most anglers learn is a different, weaker construction — only about 55% of the FG Knot's strength on light braid.

FAQ

Is the GT Knot stronger than the FG Knot?

It depends entirely on which construction you tie and at what line class. The rigorously-tested Bimini-Twist-based GT Knot beat the FG Knot at heavy line class (100% vs. 82.1% in the IGFA/Sport Fishing Magazine study), but the popular simplified single-strand version most tutorials teach tested only about 55% as strong as the FG Knot at light line, with documented outright slippage at 10lb braid/20lb mono.

Why do people say the GT Knot on YouTube isn't the "real" GT Knot?

Because most popular tutorials teach a simpler, faster single-strand build that skips the Bimini Twist foundation used in the IGFA-tested, 100%-heavy-line construction. Both are called "GT Knot," but only one has the rigorous strength data behind it.

How to Tie the GT Knot

Step 1

Double over about 18 inches of braided mainline to form a long bight, or loop.

Step 2

Thread the doubled braid through the leader's tag-end eye, or lay it alongside about 12 inches of leader. Pinch both together where they overlap.

Step 3

Wrap the leader tag end around the doubled braid loop: 30–40 tight, closely spaced wraps, working away from the pinch point.

Step 4

Fold the remaining braid loop back over all the wraps just made.

Step 5

Make 15–20 additional wraps with the leader tag end over the folded braid loop and previous wraps, working back toward the start.

Step 6

Pass the leader tag end through the small remaining braid loop. Moisten thoroughly, then pull both standing lines slowly and steadily over 15–20 seconds to seat the wraps. Trim both tags close to the knot.

Pro Tip: Wrap count matters more here than on almost any other knot. Fewer than 30 initial wraps and the finger-trap effect never fully engages — take the extra thirty seconds to hit the full count. A Knot Tying Companion Kit is good for practicing the wrap-and-cinch motion before you tie it on line that matters.

A structurally different build also circulates under this name: a uni-knot-style wrap on the braid side with a figure-eight weave on the leader side. No full step list exists for it yet — worth knowing it's out there, but not taught here.

Important Notes on Safety

• More than one knot is called the GT Knot and they are not equally strong. The 100%-strength version starts with a Bimini Twist at heavy line class; the version taught here skips it and came in at roughly 55% of an FG Knot's strength on light braid, slipping clean out at 10lb braid to 20lb leader. The real question isn't how to tie the GT Knot — it's which one you tied.
• Wrap count is the whole game here. Under about 30 wraps it can pull out under a hard load, and it doesn't degrade politely: either it holds, the leader creeps through, or the braid cuts into itself.
• Once fully set, there's no documented way to untie it — plan on scissors and a retie, not a rescue.
• For heavy-tackle applications, confirm you're tying the Bimini-based build, not the simplified version most tutorials show.