Sports Betting

Same-Game Parlay Calculator

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate SGP payouts for correlated and uncorrelated prop combinations. See how correlation affects true odds.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Why Sportsbooks Love SGPs
Using Correlation to Your Advantage

SGPs

Kombinieren Moneyline + Total + Props desselben Spiels. Effektive Marge: 15-30% — extrem profitabel für Buchmacher. Korrelierte Auswahlen werden als unabhängig behandelt, was die Marge aufbläht. Zum Spaß mit kleinen Einsätzen: völlig okay. Zur Gewinnmaximierung: eine der schlechtesten Wettformen.

Boost-Angebote

Buchmacher bewerben SGPs mit Quotenboosts — selbst mit Boost meist noch negativ EV. Marketing, nicht Großzügigkeit.

⚡ CalcWolf Insight

A Harvard study of DraftKings SGP data found the average house edge was 19.7% — nearly 4x the edge on standard spread bets. The most profitable SGPs for the sportsbook were those with 4+ legs, where the compounding margin effect is strongest.

Frequently asked questions

Sind SGPs gute Wetten?▾

Mathematisch nein — 15-30% Marge. Zum Spaß: ja. Zum Geldverdienen: nein.

Und die Boosts?▾

Verbessern die Quoten, aber reichen selten für positiven EV. Cleveres Marketing.

✓ Math logic verified against primary sources → See our verification process

Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →