Have you ever clicked “swap” on a DEX only to find you got fewer tokens than expected? You might have been a victim of “Front-running.” To be honest, this topic makes me angry. It is a world where bots watch your moves and cut in line just to steal a bit of your profit. As someone who values trust and honesty, I find this “hidden trick” incredibly frustrating. Here is how it works and why we need to talk about it.

What is Front-running? A Clear Explanation for Beginners (2026)

In the world of blockchain, transparency is usually a good thing. But there is a darker side to this openness. When you send a transaction to the network, everyone can see it before it is officially completed. This creates an opportunity for something called “Front-running.”

To be completely honest, just hearing this word makes me angry. As I have shared in my previous posts, I have a deep dislike for people—or in this case, bots—that cut in line and take advantage of others. It feels like a fundamental violation of the “fair play” that blockchain was supposed to bring us.

Contents

The Simple Analogy: The Coffee Shop Bully
How It Works: The War of the Gas Fees
Why It Matters: Protecting Your Assets
The Reality: A Hard Problem to Solve
Closing Reflection

The Simple Analogy: The Coffee Shop Bully

Imagine you are standing at the counter of a coffee shop. There is only one limited-edition mug left for $20. You reach into your pocket and say to the cashier, “I’ll take that mug, please.”

Suddenly, a person standing behind you realizes you are about to buy it. They lean over your shoulder and whisper to the cashier, “I’ll give you $25 if you process my order first.” The cashier, wanting the extra $5, sells it to them. Then, the person turns to you and says, “I have the mug now. I’ll sell it to you for $30.”

In the digital world of Polygon PoS, that “person” is a bot, and the “extra $5” is a higher gas fee. You lose money, the bot wins, and the system feels rigged.

How It Works: The War of the Gas Fees

When you attempt a trade on a DEX, your transaction waits in a temporary holding area. This is where Front-running bots strike:

First, the bot sees your transaction and calculates how much it will move the price of the token. Second, the bot sends an identical buy order but attaches a higher gas fee. Because Polygon’s Bor engine and Validators generally prioritize higher fees, the bot’s trade happens first.

Third, your trade executes at a higher price because the bot already bought in. Finally, the bot sells the tokens immediately back to the market, pocketing the difference. They are essentially “taxing” your trade without your permission.

Why It Matters: Protecting Your Assets

Understanding Front-running is vital because it directly impacts your wallet. It is a primary component of MEV (Maximal Extractable Value). If you don’t know it exists, you might wonder why you are always losing a small percentage of your money every time you make a move.

While I am building RizeCoin (RZC), I often think about how to make the experience safer for those who aren’t tech-savvy. Front-running is a barrier to the financial equality I dream about at About RizeGate.

The Reality: A Hard Problem to Solve

I’ve mentioned before how much it hurt when I lent money and lost a friend. That experience taught me that some people will always look for a way to exploit a situation. Bot-driven Front-running feels like the digital version of that betrayal.

The technical details go deeper than this overview, and developers are working on “Private RPCs” and other tools to hide transactions from bots. However, it’s not a perfect fix yet. It’s a constant race between the people building the system and the people trying to exploit it. I find it difficult to accept that this is “just business” in the crypto world. To me, it feels like a bug in the ethics of the code.

Closing Reflection

Front-running is an uncomfortable reality of modern blockchain. It reminds us that while we are moving away from traditional banks, we still have to be careful about who—or what—is watching our every move.

Have you ever looked at PolygonScan and noticed a bot trade happening just milliseconds before yours? Does it make you as frustrated as it makes me, or do you see it as just another part of the technology? If you have found a good way to protect your trades, or if you think I’m being too hard on the bots, please tell me in the comments. Let’s find a way to make this space more honest, together.