Feature directory

The desk, one product at a time

Every tool on The Cold Line, grouped by what you want to do. Each card says what the tool does, who can open it, and where its link goes. Research software. We do not accept wagers or operate a sportsbook.

In a regular NFL survivor pool? The Standard NFL Survivor planner covers 18 weeks with one team per week, no team reuse, and holiday games in their normal weeks. Free to try; a free account saves your plans.

Mapping a Circa Survivor entry? The unofficial Circa Survivor 2026 planner covers the 20-leg survivor pool, including the Thanksgiving leg and the Christmas leg. Plan as a guest; a free account saves your plans.

Research

Context before the game: weather, schedules, and conditions.

  • Weather Command

    Stadium weather for today's games: conditions, rain, and wind direction drawn on the field.

    Access: Free, no account needed

    • Free, no account needed: Field view, conditions, temperature, hourly rain, and one wind-direction arrow
    • Any paid plan: Wind speed, ball carry, field-goal lines, swirl, and air quality
    Read the overview: Weather Command

  • Sports calendar

    Upcoming games and events across sports, filterable by sport and event type.

    Access: Free, no account needed

    Open Sports calendar

  • Game reports

    Matchup reports bring available news, injuries, weather, and game context into one place.

    Access: Pro or Sharp

    Read the overview: Game reports

  • NBA Load Management

    Review NBA schedule, rest, and workload context alongside your matchup research.

    Access: Sharp

    Read the overview: NBA Load Management

Build and simulate

Turn what you believe into your own fair number, then test it.

  • Cold Line Builder

    Start from data-driven dials for weather, travel, rest, injuries, and matchups, change what you believe, and get your own fair spread, total, or moneyline.

    Access: Free account

    • Free account: Builder preview and 5 saved builds per UTC day
    • Pro or Sharp: Every dial and unlimited saved builds
    Read the overview: Cold Line Builder

  • Simulation Lab

    Change the inputs and run the game: MLB and NBA game simulations plus NFL playoff scenarios.

    Access: Pro or Sharp

    Read the overview: Simulation Lab

  • Standard NFL Survivor planner

    Plan one team per NFL week without reusing teams. Holiday games stay in their normal weeks.

    Access: Free, no account needed

    • Free, no account needed: Plan as a guest; a free account saves your plans
    Open Standard NFL Survivor planner

  • Circa Survivor planner

    Plan a Circa Survivor entry week by week, including the Thanksgiving and Christmas legs.

    Access: Free, no account needed

    • Free, no account needed: Plan as a guest; a free account saves your plans
    Open Circa Survivor planner

Compare

Put your number next to the game line and the wider market.

  • Odds Board

    Game lines from many sportsbooks side by side, so you can see what the market is offering.

    Access: Free account

    • Free account: Delayed odds
    • Pro or Sharp: 30-second delayed odds and 24-hour line movement
    • Sharp: Real-time odds, full line movement, and consensus
    Read the overview: Odds Board

  • Edge Scanner

    Compares a sportsbook's moneyline, spread, and total with a sharp reference price and shows the difference.

    Access: Sharp

    Read the overview: Edge Scanner

Live context

Follow the game state while it unfolds.

Save and track

Keep your builds, logged bets, and paper tests in one place.

  • Saved builds

    Keep every number you build so you can reopen it and review it later.

    Access: Free account

    • Free account: 5 saved builds per UTC day
    • Pro or Sharp: Unlimited saved builds
    Open Saved buildsSign in required

  • My Bets

    Log the bets you place elsewhere and see them graded automatically.

    Access: Pro or Sharp

    Read the overview: My Bets

  • Forward Test Lab

    Paper-test your own Builder reads over time without placing a bet, then compare the results.

    Access: Pro or Sharp

    Read the overview: Forward Test Lab

Review

Timestamped evidence for looking back at what happened.

  • Audits

    A timestamped log of sportsbook line moves shown beside the play-by-play, in Eastern Time.

    Access: Pro or Sharp

    • Sharp: Real-time line data
    Read the overview: Audits

Alerts

Updates by email, browser push, or Telegram, depending on your plan.

  • Alerts

    Choose which updates you want, how they reach you, and when to stay quiet.

    Access: Free account

    • Free account: Email alerts
    • Any paid plan: Browser push and 3 active alerts
    • Sharp: Unlimited alerts and the private Telegram bot

    Telegram is included with Sharp and available as an add-on on Pro and Groundskeeper.

    Read the overview: Alerts

Learn

Plain-English lessons, a glossary, and calculators.

  • Learn

    Plain-English lessons on how lines, odds, and prices work, with videos and quizzes.

    Access: Free, no account needed

    Open Learn

  • Betting terms glossary

    Definitions and worked examples for common betting terms.

    Access: Free, no account needed

    Open Betting terms glossary

  • Bet calculators

    Work out payouts for parlays, teasers, round robins, if-bets, and action reverses.

    Access: Free, no account needed

    Open Bet calculators

  • Odds tools

    Convert odds to implied probability and check vig, single-bet payout, expected value, and closing line value.

    Access: Free, no account needed

    Open Odds tools

Free tools

Tools you can open today at no cost.

  • Weather Command

    Stadium weather for today's games: conditions, rain, and wind direction drawn on the field.

    Access: Free, no account needed

    • Free, no account needed: Field view, conditions, temperature, hourly rain, and one wind-direction arrow
    • Any paid plan: Wind speed, ball carry, field-goal lines, swirl, and air quality
    Open Weather Command

  • Sports calendar

    Upcoming games and events across sports, filterable by sport and event type.

    Access: Free, no account needed

    Open Sports calendar

  • Standard NFL Survivor planner

    Plan one team per NFL week without reusing teams. Holiday games stay in their normal weeks.

    Access: Free, no account needed

    • Free, no account needed: Plan as a guest; a free account saves your plans
    Open Standard NFL Survivor planner

  • Circa Survivor planner

    Plan a Circa Survivor entry week by week, including the Thanksgiving and Christmas legs.

    Access: Free, no account needed

    • Free, no account needed: Plan as a guest; a free account saves your plans
    Open Circa Survivor planner

  • Learn

    Plain-English lessons on how lines, odds, and prices work, with videos and quizzes.

    Access: Free, no account needed

    Open Learn

  • Betting terms glossary

    Definitions and worked examples for common betting terms.

    Access: Free, no account needed

    Open Betting terms glossary

  • Bet calculators

    Work out payouts for parlays, teasers, round robins, if-bets, and action reverses.

    Access: Free, no account needed

    Open Bet calculators

  • Odds tools

    Convert odds to implied probability and check vig, single-bet payout, expected value, and closing line value.

    Access: Free, no account needed

    Open Odds tools

By sport

The tools that cover each sport, with who can open them.

NFL

NCAAF

NBA

NCAAB

WNBA

MLB

NHL

Soccer