Methodology

LineTerminal grades every bet against the actual closing price from DraftKings, FanDuel, and BetMGM and computes ROI on flat $100 stakes at those real prices. We never assume −110 juice. This page documents data sources, grading rules, and refresh cadence so the numbers on every team and player page can be reproduced or audited.

Updated April 26, 2026

Data sources

Closing odds from DraftKings, FanDuel, and BetMGM through licensed third-party providers.
Game outcomes graded against official NBA, NHL, MLB, and NCAAB box scores.
Player prop outcomes graded against official league box scores per sport (NBA box scores, NHL box scores, MLB box scores).
Inside Edge matchup ratings sourced from a licensed third-party scouting feed.
Five-plus years of structured historical data, aligned to closing lines from the same three books.

How records and ROI are computed

Every bet uses the actual closing odds for that specific market and side, on the listed sportsbook. Records (e.g. "78-82-2 ATS") are wins-losses-pushes against the closing line. Cover rate is wins divided by wins-plus-losses (pushes excluded). ROI is computed on flat $100 bets:

A win at −180 returns +$55.55 profit; a win at +130 returns +$130 profit.
A loss forfeits the $100 stake.
A push returns the stake (zero P&L).
ROI = total P&L ÷ total stake, expressed as a percentage.

We do not compute ROI from a flat-juice assumption. Bins where actual closing odds are missing fall back to per-bin average odds with the source flagged.

Refresh cadence

Live odds refresh every 5 minutes.
Game grading runs twice an hour.
Player props are stamped at grade-time with a frozen point-in-time snapshot to prevent historical drift.
Visible Updated timestamps on every page link to the underlying record date in machine-readable form (<time datetime>).

Disclaimer

LineTerminal does not accept, place, or facilitate bets. All content is for informational and entertainment purposes only.

Frequently asked questions

Where does LineTerminal get its odds data?

LineTerminal ingests closing lines from DraftKings, FanDuel, and BetMGM through licensed third-party odds providers. Closing lines are the price snapshot taken at the moment a market locks before game start, and they are the most efficient prices available — which is why we grade against them rather than opening lines or any user-shopped midpoint.

How does LineTerminal compute records and ROI?

Every bet on the site is graded individually against the actual closing price for that specific market and side. ROI is computed on flat $100 stakes at those actual closing odds — never on assumed −110 or any flat-juice approximation. A bet that wins at +130 returns $130; a bet that loses at −180 forfeits $100. We sum profit and loss across the bin, divide by total stake, and report the percentage. The "ROI must always use actual closing odds" rule is enforced everywhere on the site.

How does LineTerminal grade bets?

Pre-game lines are matched against final box-score outcomes from official league sources: NBA box scores, NHL box scores, MLB box scores, and NCAAB box scores. The grading job runs twice an hour. Each prop is stamped at grade-time with a point-in-time snapshot so historical analysis cannot drift as new data arrives.

How often is the data on LineTerminal refreshed?

Live odds refresh every 5 minutes. Game grading runs twice every hour. Sitemap entries reflect actual data freshness rather than render time, and visible "Updated" timestamps on every page link to the underlying record date in machine-readable form.

Does LineTerminal accept bets or facilitate wagers?

No. LineTerminal is a sports data and analytics product. We do not accept, place, or facilitate wagers of any kind. All content is for informational and entertainment purposes only. Past performance does not guarantee future results.

Who maintains LineTerminal's editorial standards?

LineTerminal is built and operated by LineTerminal LLC, a Wyoming limited liability company. All content reflects organizational positions rather than fabricated individual bylines — when a real human contributor publishes, they are named directly. We disclose data sources and grading rules on this page. We do not generate previews or predictions algorithmically and ship them as editorial.