Why Do We Throw Two Jabs?
01 · The Situation
Your trainer keeps saying: double jab, then cross.
You throw two jabs. They feel identical. The second one doesn't seem to do anything the first one didn't.
02 · Your Turn
Find a partner holding pads. Do this slowly — this is not about speed.
Round 1: Throw a single jab. Watch what your partner does with their head and shoulders the moment it lands. Watch carefully.
Round 2: Now throw two jabs in a row. Watch what happens on the second one specifically — not the first.
Do three rounds of each. Notice the difference in how your partner reacts to jab one versus jab two.
Come back when you have seen it.
Look for what changes. Not in your punch — in them.
03 · Solution
The first jab is not meant to hurt anyone.
It is meant to get a reaction.
When your jab arrives, something happens in the person receiving it — they blink, their head moves, their shoulders rise slightly, their attention goes to the hand coming at their face. For a fraction of a second, they are busy with what just happened.
The second jab arrives into that moment.
They are still processing the first one. They have not fully reset. Their guard has not fully recovered, their eyes have not fully refocused. The second jab does not need to find a gap — the first one created it.
This is the principle behind combinations
Every punch in a combination has a job. Early punches create reactions. Later punches exploit them. When you understand this, every combination starts to make sense — not as a memorised sequence, but as cause and effect.
The double jab is the simplest version of this idea. One punch causes a flinch. The next punch arrives while the flinch is still happening.
Why the second jab feels the same to you
When you throw it, both jabs feel identical because you are focusing on your own movement. Your Turn asked you to focus on them instead — and that is what changes what you see.
Once you see the reaction, you cannot unsee it. Every punch you throw from now on, you will be watching for what it does to the other person, not just whether it lands.
That is fighter's vision. It starts with two jabs.