LoL odds tips: how to read prices like a trading desk

An LoL bet is a price, not a pick. Once that clicks, the rest of betting gets easier. This article covers how odds work, how to compare them across books, and how to tell a good price from a bad one in under 30 seconds.

Three formats, one number

Books show the same price three different ways depending on where the book is based.

Decimal. 2.00 means your stake doubles. 1.50 means you get back 1.5x what you bet.
American. -110 means you risk 110 to win 100. +150 means you risk 100 to win 150.
Fractional. 3/2 means you win 3 for every 2 bet. 1/2 means you win 1 for every 2 bet.

They all say the same thing. Pick one and learn it. For LoL, decimal is standard at most esports-specialist books. Stick with decimal and you will save yourself conversion errors.

Turning odds into probability

This is the single most valuable skill in sports betting. It takes two seconds.

Decimal odds to implied probability: 1 divided by the decimal price.

2.00 decimal = 1/2.00 = 50 percent.
1.50 decimal = 1/1.50 = 66.7 percent.
3.00 decimal = 1/3.00 = 33.3 percent.

Implied probability is what the book is pricing the outcome at, including their vig.

Vig, hold, and why they matter

Vig (or juice) is the book’s commission. Hold is the total vig across all outcomes of a market.

A fair coinflip priced at 2.00/2.00 has zero vig. You would break even flipping forever. A real book offers 1.91/1.91, which implies 52.36 percent + 52.36 percent = 104.72 percent. The extra 4.72 percent is the hold. That is the book’s theoretical edge.

Hold on LoL moneylines by book type (April 2026 snapshot):

Book type	Typical hold
Sharp reduced-juice books	2.0 to 2.5%
Esports-specialist books	4.0 to 5.0%
US-regulated books	5.5 to 7.0%
Recreational books	6.5 to 8.0%

Same match, wildly different prices. The gap is real money over time.

No-vig probabilities

Strip the hold and you get the “true” probability the book is implying. Formula for a two-way market:

No-vig implied prob for team A = implied(A) divided by the sum of implied(A) + implied(B).

Example. T1 at 1.70, Hanwha Life at 2.30.

Implied T1: 1/1.70 = 58.82%.
Implied HLE: 1/2.30 = 43.48%.
Total: 102.30%.
No-vig T1: 58.82 / 102.30 = 57.50%.
No-vig HLE: 43.48 / 102.30 = 42.50%.

The book is pricing the match at 57.50/42.50 before vig. If your opinion on T1 is above 57.50 percent, you have value. If it is below, you do not.

Line shopping is not optional

Every book prices independently. The difference between the best and worst LoL price on a major match is usually 4 to 8 percent. That is the single largest edge available to recreational bettors, and it requires zero modeling skill.

Do this before every bet:

Open 3 books covering different segments (one sharp, one esports-specialist, one recreational).
Find the match.
Compare the price on your side.
Bet the best one.

The math: line shopping is worth roughly 1.5 percent ROI on average for LoL. If your baseline is break-even, line shopping alone puts you in profit. If you skip it, you are leaving free money on the table.

Reading line moves

Odds change before a match starts. The final price, right before the match goes live, is the closing line. Line movement is a signal.

Sharp moves

Lines that move 5 percent or more within a short window, without obvious news, usually indicate sharp money. If a line moves from 1.85 to 1.72 in an hour, someone is betting heavy on that side for a reason. Two possibilities:

They have information you do not (usually).
They are wrong and the price will correct.

Fading sharp moves is a losing strategy for recreational bettors. Following them is a winning strategy, but only at prices that still have value. Late sharp steam usually kills the value you would have had.

Public moves

Slower drift in one direction, often toward the favorite or a popular team. This is the square side. Sharps take the other side at a discount.

If T1 drifts from 1.65 to 1.55 in a 6-hour window before a match with no news, that is the public piling in. The underdog price is now inflated. This is the kind of market move you want to be on the right side of.

News moves

A player gets benched. A visa denial. A patch gets delayed. These can move lines 10 percent or more in minutes. Books usually pull markets briefly when it happens. If you see a line way out of line with the rest of the market and there is no news, check sources. If there is news, the line is probably fair.

Closing line value (CLV)

The closing line is the market’s final answer. If you beat it, you beat the market.

Say you bet T1 at 1.90 six hours before tip. The closing line is 1.80. You beat the close by 10 price points, or roughly 5.5 percent.

Over hundreds of bets, positive CLV predicts long-term profit better than your current win rate does. You can be unlucky for a split and still be betting well. You can be lucky for a split and be betting badly. CLV tells you which one it is.

Track CLV in your spreadsheet. If your average is positive, you are picking winners the market did not want to give you cheaply. If it is negative, reconsider your process before you reconsider your bankroll.

The most common odds mistakes in LoL

Confusing odds with certainty. A -400 favorite loses 20 percent of the time. LoL upsets are common.
Chasing longshots at big international events. Worlds and MSI produce viral upsets. Fading the chaos is usually correct.
Ignoring timing. Betting a day in advance is different from betting 10 minutes before. Information and prices shift.
Not shopping. If you bet one book on every play, you are paying the highest available rate.
Round number bias. Books price slightly higher at round numbers (2.00, 2.50) because casuals bet them. Fade round numbers when you can.

The short version

Convert every price to implied probability.
Strip the vig before comparing to your opinion.
Shop the line across at least two books.
Track CLV, not just wins.
Fade slow public moves. Follow, carefully, fast sharp moves.

None of this is secret. All of it is what people who beat the vig actually do.