NFL system builder

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Pulls every NFL game since 1999 from the nflverse public dataset — closing spread, total, referee, roof, surface, temperature, wind, rest days. Roughly 7,000 games, free.

Saved systems

Situation

Conference

Team

Opponent

Head coach

Opposing coach

Side

Role

Spread size — absolute points (3 and 3 = exactly 3)

Total line

Division game

Conference game (same AFC/NFC)

Timing

Seasons

Season type

Exact week (overrides range)

Week range (regular season)

Weekday

Rest days — team

Rest days — opponent

Conditions

Roof

Surface

Temperature (°F)

Wind (mph)

Officials

Referee

Recent form

Off a straight-up…

Off an ATS…

ATS wins in last 3 games

Opponent — off a straight-up…

Streaks

Straight-up streak entering (+ won, − lost)

ATS streak entering (+ covered, − didn't)

O/U streak entering (+ overs, − unders)

Consecutive games at this site (1 = first)

Win% gap vs opp, entering — same season (+ this team better)

e.g. min 25 = this team's SU win% was ≥25 points higher than the opponent's coming in. Both teams need a game played that season.

ATS Receiptssystem ticket

System record — against the spread

sample 0 games

0-0

—

ATS win %

—

Units @ −110

—

ROI

coversbreak-even 52.4%no cover

Straight up

—

Moneyline units

—

Over / under

—

O/U units @ odds

—

Avg margin vs spread

—

points per game

Avg total

—

Equity curve — units at −110

A steady climb is a system. One cliff is a lucky week.

By season

Season	ATS	Win%	Units

Matching games

Date	Sea	Wk	Team		Opp	Spread	Score	Margin	ATS	O/U	Referee