First blood, first tower, 100 CS: how a BYLT duel is won

Most 1v1 formats in League of Legends pick one way to win and stick to it. First to a kill, or first to a tower, or first to a CS target. Each one rewards a single skill, and each one can be solved by a single plan.

BYLT duels work differently. Every duel runs all three win conditions at the same time: first blood, first tower and 100 CS. The first player to achieve any one of them wins, and the game ends there. That sounds like a small rules detail. It isn't. It changes how you trade, how you farm, how you push and how you read your opponent. This post explains how the three conditions interact and what that means for your decisions in lane.

The three conditions

• First blood: the first champion kill of the game. The fastest condition: it can end a duel in the opening minute.
• First tower: the first tower destroyed. It needs wave control and a lead you can turn into tower damage.
• 100 CS: the first player to 100 creep score. The slowest and steadiest: pure last-hitting and wave control.

On their own, each condition is a race. Put together, they become a triangle. Whatever you do to pursue one condition changes your position in the other two. That's the whole game.

Three races, one lane

Think of a duel as three progress bars running in parallel, one for each condition, for each player. At any moment, you should know roughly where all six bars are:

1. Health: who is closer to dying? Health is the first blood race.
2. Tower health: whose tower has taken more damage, and whose wave is pushing? That's the tower race.
3. CS: who has more last hits, and who is farming more safely? Press Tab: the scoreboard shows both players' CS.

Your goal is not to win all three races. You only need to win one, before your opponent wins any. The best players pick the race they are favoured in, and make every other race expensive for their opponent.

Every action moves more than one bar

This is where the format gets interesting. Almost nothing you do affects a single condition:

• Trading moves the health race, but every second you spend trading is a second you're not last-hitting. Win the trade and lose six minions, and you may have lost the CS race.
• Pushing the wave adds damage to their tower and denies their farm, but it puts you forward in the lane, closer to their tower and further from yours. That's exactly where you get caught.
• Farming safely under your tower protects your health bar, but gives your opponent free wave control and free tower pressure.
• Dying doesn't just lose you the duel through first blood. It's the one mistake that can't be traded back.

So the question is never just "should I trade?". It's "what does this trade cost me in the other two races, and is it worth it?".

When to go for the kill

First blood is the highest-tempo condition. Go for it when:

• your champion has clearly more burst or all-in power than theirs;
• you have a health lead from earlier trades;
• their key defensive tool (a dash, a shield, a summoner spell) is on cooldown;
• you are behind in the CS race and the kill is your realistic way back.

Remember the unusual math of BYLT: the duel ends the instant the kill lands. You don't need to survive after it. A dive that trades your life for the kill one second later is a win, not a trade. That makes committed all-ins stronger than in a normal game, as long as you are sure they land first. If you aren't sure, the same commitment hands your opponent the duel.

When to farm

The CS race is the safest and slowest. It suits champions with strong wave clear, safe range or a lot of sustain. Lean into it when:

• your opponent wins short all-ins, so you want as few fights as possible;
• you're already ahead on CS and every minute widens the gap;
• you can freeze the wave near your tower, forcing them to farm from a dangerous position.

Farming is never passive, though. A player who only farms gives up wave control, and a pushing opponent turns that into tower damage. Keep an eye on your tower's health while you farm. If it drops too far, the tower race becomes the one you're losing.

When to push

First tower is the strategic condition. A kill alone won't do it: you need waves hitting the tower and time to hit it yourself. Push when:

• you have better wave clear and can make every wave crash on their side;
• you have a health lead, so your opponent can't punish you for standing forward;
• your champion deals strong damage to structures or can hit the tower from range;
• your opponent is behind in health and has to choose between defending the tower and staying alive.

Pushing also feeds the CS race: clearing waves means last hits. That makes a well-timed push one of the few actions that advances two races at once.

Reading the state of the duel

Because the conditions run in parallel, the right plan can change several times in one duel. A few common situations:

You're ahead on CS, behind on health

Play safe and let the CS gap do the work. Your opponent now has to force a fight to win, so don't give them one on their terms. Stay out of their kill range, take relics, and last-hit from a safe distance.

You're ahead on health, behind on CS

Your lead is in the health race, so use it. Pressure them every time they step up for a last hit. Either they give up minions to stay safe, or they take another trade at a disadvantage.

Their tower is low

Your opponent must defend it, which means standing in front of it. That's a predictable position. Use the wave to keep the tower under pressure, and look for the kill when they step up to clear.

The CS race is close and late

Near 100 CS, every minion matters. Last hits under pressure become decisive, and denying a single cannon minion can swing the result. Expect your opponent to be more aggressive here, because a kill is their way out of a lost farm race.

How results are settled

With three conditions live at once, the order of events matters. Every kill, tower and CS is timestamped in the game data, so the result never depends on someone's memory or a screenshot taken a second too late. Both players report the result after the game; if they agree, the duel settles instantly, and if they don't, the game data decides.

Conclusion

First blood rewards aggression. First tower rewards tempo. 100 CS rewards discipline. Running all three at once means no single plan wins every duel: you have to read the matchup, track three races and adapt as the lane changes. That's what makes a BYLT duel a real test of skill, and why the best duelists aren't the ones with the most mechanics, but the ones who always know which race they're in.

Want to sharpen your lane first? Read how to win a 1v1 on Howling Abyss.