platform
Parlay Builder
Also known as: SGP, Same-Game Parlay
A parlay builder is a sportsbook tool for combining legs from a single game into one parlay ticket, priced with correlation adjustments. Same-game parlays are among the highest-vig products sportsbooks offer.
A parlay builder (most commonly a same-game parlay, or SGP) is the sportsbook product that lets a bettor stack multiple legs from the same game. The legs are correlated (events inside one game share game-state inputs), so independent-parlay math overstates the true joint probability. Books adjust the price downward to reflect correlation, but they also embed substantial additional hold.
Hold on SGPs typically ranges from 20% to 40%, compared to 4-5% on standard sides and totals. The compounding of juice across legs, plus the correlation adjustment in the book’s favor, plus the difficulty of independently price-checking SGPs across books, makes them the highest-margin product most sportsbooks offer.
Worked example. A bettor builds a same-game parlay: QB over 250 passing yards (-110), lead WR over 70 receiving yards (-115), team to cover -3 (-110), game over 47 (-105). Independent-parlay math gives approximately +1430. The book offers +650. The gap reflects (a) honest positive-correlation pricing (real, smaller) and (b) embedded hold (large). Backing out hold from this kind of construction without book disclosure requires a model that simulates joint outcomes; most bettors don’t have one.
Elite Picks treats parlay-builder analysis as a defense more than an offense. The model identifies which leg combinations have favorable correlation (often run unders correlate with team total unders; QB rushing yards correlate negatively with team passing totals on dominant rushing scripts) and which combinations are sucker constructions. Most SGPs the model evaluates are net-negative EV; the rare positive ones are flagged explicitly.
Example
A four-leg SGP combining QB anytime TD, WR over receiving yards, team to win, and game over total is offered at +650. Theoretical fair pricing accounting for correlation might be +900-plus, with the gap representing 25-30% hold.