Combo Builder
Build Sports Combos With Data-Driven Analytics
A same-game combo stacks several outcomes from one game onto a single ticket. Sportslyx prices every leg from the same score model, so the correlation between legs is part of the price — not something you discover after the final whistle.
Basics
What Is a Sports Combo?
A sports combo — also called a parlay or an accumulator — is a single ticket made of two or more legs that must all land for the ticket to win. A leg is one outcome: a team to win, a game to stay under a points total, one side to clear its team total. Combine a favourite on the moneyline with the game total and you have a two-leg combo; add a team total and it becomes three. The payout grows with every leg, and so does the number of ways the ticket can fail.
Sportslyx focuses on same-game combos: every leg comes from one game (in the product's UFC section, two or three fights from one card). That constraint is deliberate. Legs from the same game share the same pace, the same injury news and the same final score — which means they are rarely independent. A ticket that ignores that relationship is mispriced before it is even saved.
On this page you will find how the Combo Builder prices a ticket, what the builder actually does, why correlation changes the math, and links to sport-specific guides for NFL, NBA, MLB, NHL and soccer combos. Sportslyx is an analytics workspace: it prices, explains and grades tickets. It is not a tout service — the company board is part of every paid plan, published before the start and graded in public.
Pricing
How Sportslyx Prices Combos
The price of a combo is not the product of its legs. Sportslyx builds one score distribution per game and reads every leg from it.
- 1
One model per game
From the current market lines, team form, pace or pitching context and availability, the builder fits a distribution over possible final scores for that specific game.
- 2
Each leg read from it
A spread, a game total, a team total or a match result is a region of that distribution. The leg’s probability is the share of simulated outcomes that fall inside it.
- 3
The ticket priced jointly
The combo’s probability is the share of outcomes where every leg lands at once. Correlated legs overlap; contradictory legs barely intersect.
- 4
Honest expected value
The builder compares the joint probability with the ticket’s combined odds and shows the expected value as a number you can audit — positive, negative or close to zero.
Multiplying the implied probabilities of each leg assumes the legs are independent. In a single game they are not: a favourite covering a large spread often means a game that stayed under the total, and an underdog's team total is tied to whether the game stayed close enough for its starters to keep scoring in the fourth quarter. The naive product overstates some tickets and understates others. Sportslyx prices from the shared score model so the number on the ticket already reflects those relationships.
The model is a statistical estimate. It can be wrong, its inputs can be delayed — a late scratch or an availability change may reach the feed after the ticket was priced — and no ticket price is a promise about the result. The builder shows its numbers so that you can disagree with them.
Guides
Same-Game Combos by Sport
Each sport has its own correlation structure — pace in basketball, the starting pitcher in baseball, the empty net in hockey, the draw in soccer. The guides below cover the legs you can combine and a worked correlation example for each.
NFL combos
NFL combos pair correlated markets from the same game — spread and total — and price each leg from the score distribution so the ticket reflects real correlation, not a naive multiplication.
Learn moreNBA combos
NBA combos combine same-game markets — spread and total — priced from a shared score model so correlated legs are not double-counted.
Learn moreMLB combos
MLB combos price the run line and total from one run-distribution model so a starter-driven under and a favorite moneyline are not treated as independent.
Learn moreNHL combos
NHL combos price the puck line and total from a shared goal-distribution model, so a low-scoring favorite is not mispriced as two unrelated legs.
Learn moreSoccer combos
Soccer combos price match result and goal totals from a shared goal model, so a home win and an under are priced with their real correlation.
Learn moreUFC and golf do not have public combo guides: a fight has no spread or total to combine, and a golf tournament is a single field rather than a two-sided game. Inside the product, UFC tickets combine two or three fights from one card; golf is previewed through the outright-winner market on the golf analytics hub.
Builder
Combo Builder Features
Same-game leg picker
Choose legs from one game’s lines — spread, moneyline or match result, game totals, team totals and, in soccer, both teams to score — all derived from the public feed. Player props are covered for MLB only and are not a combo leg.
Strategy presets
Balanced, Safe, Value and Correlated modes shape which legs the builder assembles, from lower-variance stacks to single-game correlated tickets.
Leg-by-leg probabilities
Every leg shows its model probability next to the market’s implied number, so you can see exactly where the two disagree.
Joint pricing and EV
The ticket’s joint probability and expected value come from the shared score distribution, not from multiplied legs.
AI combo breakdown
An optional written analysis explains what the model likes and dislikes about the ticket and which leg carries the most risk.
Saved and graded
Saved combos are tracked as tickets. Every leg is graded from the official final score; a leg that lands exactly on its line is a push and drops out of the ticket. Your combo record sits next to your single picks in the tracker.
Worked example
Why Correlation Matters
Take an NFL game where the home team is a 7-point favourite and the total is 44.5. Two legs: the favourite covers, and the game stays under. Priced separately, each leg is close to a coin flip, so a naive combo price treats the ticket as roughly one in four.
Now look at how a 7-point cover actually happens. Suppose the favourite's edge is a run-heavy offense and a defense that gets off the field. When that team controls the game, the clock runs, possessions shrink and the opponent scores less — exactly the conditions for an under. A cover and an under arrive together more often than independence would suggest. The joint probability is higher than one in four, the ticket is worth more than the naive math implies, and the market price may or may not reflect that.
Flip the team profile — a fast, pass-first favourite — and the same two legs pull against each other: a big cover tends to come with a high score, and the under becomes less likely precisely when the spread leg wins. Same legs, opposite correlation, a very different fair price. The Combo Builder captures this because both legs are read from one score distribution that already knows how this particular game tends to be played. Correlation is not a bonus feature of combo pricing; it is the whole difference between a fair ticket and an expensive one.
The sport guides walk through the same idea with the markets specific to each league: NFL combos, NBA combos, MLB combos, NHL combos, Soccer combos.
Plans
Combos Are Available on Pro
The Combo Builder is part of the Pro plan and above. Starter includes AI match breakdowns and the daily board but not Combos or Studio. Pro is priced at $59/month + tax and includes 120 Builder tokens a month — the currency that pays for combo builds and Studio runs — alongside 500 AI tokens with no daily cap. Every new account starts with a 7-day Pro trial: a card is required, nothing is charged today, and the trial includes the Combo Builder.
- 120 Builder tokens a month on Pro — each combo build or Studio run spends one
- No daily cap on AI actions on Pro and Unlimited
- Unlimited builds and runs on the Unlimited plan
- Cancel from your account at any time; the trial ends without a charge if you cancel before it renews
Frequently Asked Questions
What is a same-game combo?
A ticket made of two or more legs from one game — for example a favourite on the moneyline plus the game total. All legs must land for the ticket to win. Because the legs share the same game, they are usually correlated, which is why Sportslyx prices them together instead of one at a time.
Why not just multiply the odds of each leg?
Multiplying implied probabilities assumes the legs are independent. In one game they are not: pace, score state and injuries affect every leg at once. Sportslyx builds a score distribution for the game and prices the ticket as the share of outcomes where every leg lands, which captures the correlation the naive product ignores.
Which sports support combos on Sportslyx?
NFL, NBA, MLB, NHL and soccer have public combo guides and a same-game builder. UFC tickets inside the product combine two or three fights from a single card. Golf is covered through outright-winner previews rather than combos.
Which plan do I need for the Combo Builder?
Pro and above. Combo builds spend Builder tokens — 120 a month on Pro, unlimited on Unlimited. The 7-day Pro trial includes the builder, so you can test it before the first charge.
Are my combos tracked and graded?
Yes. A saved combo becomes a tracked ticket. After the final score every leg — winner, spread, game total, team total, both teams to score — is graded from the official result. A leg that lands exactly on its line is a push: it drops out of the ticket and the payout is recalculated from the remaining legs; a ticket made only of pushed legs is voided and the stake returned. The settled ticket appears in your personal tracker next to your single picks — wins, losses, pushes and voids included.
Is the combo price a recommendation?
No. The joint probability and expected value are statistical estimates from a model that can be wrong and that works from data that can be delayed or incomplete. Sportslyx is not a tout service — the company board is part of every paid plan, published before the start and graded in public — and the builder shows you the math and the graded record so you can judge a ticket yourself.
Price Your First Combo on the Pro Trial
Full Pro access for 7 days: the Combo Builder, Studio, AI breakdowns for every game and the pick tracker. A card is required, nothing is charged today, and you can cancel before the trial ends.
7-day trial · $0 today · card required · cancel anytime before the trial ends
Sportslyx produces statistical estimates and analytical breakdowns for information and entertainment. Nothing on this page is betting advice, and no outcome is certain. 18+ only. Please play responsibly — see our Responsible Play page.