The Uni Knot vs. The San Diego Jam Knot Strength Test

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Episode Show Notes

The uni knot and the San Diego Jam are both excellent terminal knots, and in my test they were nearly dead even: tied in 20-pound Daiwa J Braid fluorocarbon off the same spool, the San Diego Jam broke at 20.08 pounds and the uni knot just edged it out at 20.24 pounds. In this How 2 Tuesday I put two of the most popular hook-and-lure knots head to head in an East Coast versus West Coast battle to find out which is actually stronger.

Listen now: press play in the player above and follow along.

Frequently Asked Questions

Is the uni knot stronger than the San Diego Jam?

Just barely. I tied the uni knot with five turns and the San Diego Jam with seven turns, both in 20-pound Daiwa J Braid fluorocarbon off the same spool. The San Diego Jam broke at 20.08 pounds and the uni knot broke at 20.24 pounds. The uni edges it out, but the gap is so small it comes down to personal preference.

What is the difference between the uni knot and the San Diego Jam?

Both are terminal knots for tying on a hook or lure, and both are extremely popular. I think of it as an East Coast versus West Coast battle. The uni knot I tied uses five wraps and the San Diego Jam uses seven. They are built differently but in my test they delivered almost identical strength.

How many turns should you use on a uni knot?

For this test I tied the uni knot with five turns, which is a common count for a terminal connection on the hook or lure. Five wraps gave me 20.24 pounds on 20-pound line. The uni is versatile and you can adjust the turns, but five worked great here.

How many turns should you use on a San Diego Jam knot?

I tied the San Diego Jam with seven turns for this test, and it broke at 20.08 pounds on 20-pound line. Seven wraps is a standard count for the San Diego Jam, which is a favorite of a lot of West Coast anglers throwing iron and live bait.

Which knot should I use, the uni or the San Diego Jam?

Honestly, you cannot go wrong with either one. Both broke right around the full rated strength of 20-pound line, 20.08 versus 20.24, so it really is a matter of personal preference. Tie the one you can tie cleanly and confidently every time and you are in great shape.

What line did you use to test these knots?

I used Daiwa J Braid fluorocarbon in 20-pound test, pulling line off exactly the same spool for both knots so the comparison was uniform. Testing both knots on identical line is the only way to know the difference you are seeing is the knot and not the line.

Why I Tested the Uni Knot Against the San Diego Jam

I know a lot of anglers who only tie the San Diego Jam and just as many who only tie the uni knot, and both swear theirs is stronger. Rather than argue about it, I tied the uni with five turns and the San Diego Jam with seven and broke them both. I break down what I found in the episode, so press play in the player above.

How to Tie and Test the Uni Knot and San Diego Jam

Here are the steps I walk through in this How 2 Tuesday, with the full demonstration in the episode.

  1. Pick your two knots. Choose the uni knot tied to the hook or lure and the San Diego Jam as the head-to-head competitor.
  2. Tie the uni knot with five turns. Run the line through the eye, form a loop, and make five wraps through the loop before snugging it down.
  3. Tie the San Diego Jam with seven turns. Build the San Diego Jam with seven wraps so each knot is at its standard turn count.
  4. Use identical line for both. Pull 20-pound Daiwa J Braid fluorocarbon off the same spool for each knot so the test is uniform.
  5. Lubricate, cinch, and test. Wet each knot, cinch it down smoothly, and pull it to failure to compare breaking strength.

I unpack each of these in the episode. Press play in the player above.

How Close Was This Knot Battle?

The San Diego Jam came in at 20.08 pounds and the uni knot at 20.24 pounds. Both knots essentially held the full rated strength of 20-pound line, so the difference is razor thin. I explain why that means you really cannot lose here in the episode, so press play in the player above.

Final Thoughts From Me

When two knots break this close together, the decision comes down to which one you can tie cleanly and confidently every single time. Both of these are strong, proven connections.

We have now tied and tested over 40 knots on the podcast, and they are all in the free knot guide with the numbers side by side. Tie the one you trust and go fishing. Press play in the player above.

More How 2 Tuesday Tutorials

How 2 Tuesday is my weekly series where I break down one fishing skill at a time, from knots and casting to gear, tactics, and the habits that make you a better angler. Watch and listen to every How 2 Tuesday episode from Tom Rowland.

People & Topics Mentioned

uni knot · San Diego Jam knot · Daiwa J Braid fluorocarbon · 20-pound test · terminal knot · knot strength test · How 2 Tuesday · Saltwater Experience

About Me

I'm Tom Rowland, a professional fishing guide based in the Florida Keys, host of the Tom Rowland Podcast, and the longtime host of the Saltwater Experience television show. On the podcast's How 2 Tuesday series I break down one practical skill or lesson at a time, from fishing technique and gear to the habits that make you a better angler, in short, focused episodes you can put to use right away.

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