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Prediction-market data

Sports prediction markets, priced and tracked.

Kalshi and Polymarket prices for NFL, NBA, NHL, MLB, college basketball, PGA, college football and the Premier League, at the price to buy, recorded through the day and kept as history.

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How prices are captured

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As of: awaiting live prices

Each column is the home team's implied win probability. Kalshi and Polymarket show the ask, and only when the order book is two-sided with a spread of 5¢ or less. Book consensus is de-vigged and shown for comparison. US-sourced quotes are labelled Polymarket US.

GameTime (ET)KalshiPolymarketBook consensusModel

Market prices and a model probability. Not a recommendation.

Product surfaces

Venue boards

Kalshi and Polymarket prices game by game across MLB, NFL, NHL, NBA, CBB and CFB, with book consensus beside them for comparison.

Explore venue boards

Cross-venue futures

Kalshi and Polymarket futures paired market by market on the NFL, college football, NHL and Premier League boards.

Explore cross-venue futures

Kalshi player props

Kalshi player props for NFL, NHL and MLB, including NFL 1+/2+/3+ touchdown ladders. No account needed.

Explore Kalshi player props

Line movement

Follow how sportsbook prices move from open to close, game by game, for MLB and NFL.

Explore line movement

Player and team streaks, stat trends and prop lines set against recent form.

Explore trends

Model reference

Where a sport has a model, its probability sits beside the Kalshi and Polymarket prices as a reference, not a recommendation.

Explore model reference

Research tier

Research notes, early access to new boards and, opening soon, a seat on the play-level NFL analyzer. Pricing and terms in one place.

Explore research tier

Coverage matrix

  • MLB

    Kalshi
    Game winners, team totals and player props
    Polymarket
    Game winners and futures
    Book consensus
    Available
    Props
    Available
    Model
    Available
  • NFL

    Kalshi
    Game lines and player props
    Polymarket
    Futures, with game lines often too wide to show
    Book consensus
    Available
    Props
    Available
    Model
    Available
  • NHL

    Kalshi
    Game lines, team totals and player props
    Polymarket
    Futures, with game lines often too wide to show
    Book consensus
    Available
    Props
    Kalshi only
    Model
    Calibrated reference
  • NBA

    Kalshi
    Game winners
    Polymarket
    Game winners and futures
    Book consensus
    Available
    Props
    Available
    Model
    Available
  • CBB

    Kalshi
    Game winners
    Polymarket
    Game winners and futures
    Book consensus
    Available
    Props
    Available
    Model
    Available
  • CFB

    Kalshi
    Winner, spread and total ladders
    Polymarket
    Game winners, often too wide to show
    Book consensus
    Available
    Model
    Available
  • PGA

    Kalshi
    Outrights and matchups
    Polymarket
    Outrights
    Props
    Available
  • EPL

    Kalshi
    Match winner and futures
    Polymarket
    Match winner and futures
    Book consensus
    Best US book, all three legs

A blank cell, or a column missing from a sport card, means the surface is not available for that sport. Coverage within a sport varies by event and by season. US-sourced quotes are labelled Polymarket US.

MLB features for your models

Troxler supplies point-in-time-correct MLB outing-level signals and game data through a commercial REST API for institutional clients: quant funds, prop desks and sportsbook risk teams. Versioned signal definitions document the inputs to your own models.

No key required to browse the catalog. It serves signal definitions, with each signal's point-in-time constraints and measurement unit.

curl https://api.troxler.io/v1/mlb/signals

Illustrative response excerpt from GET /v1/mlb/signals. One signal shown; static example, not live data.

{
  "data": [
    {
      "name": "mlb.pitcher_rest",
      "version": "0.1.0",
      "description": "Days since the outing's pitcher last appeared, per Savant's pitcher_days_since_prev_game. Null on a season debut or an untracked outing -- unknown rest is not zero rest.",
      "point_in_time": {
        "description": "A schedule fact fixed before the outing's first pitch. Observes nothing from the outing itself beyond which game it is.",
        "uses_only_prior_events": true
      },
      "unit": "days"
    }
  ]
}

The research tier

A subscription for readers who want the work behind the record. The predictions, the props tools and the public record stay free.

What the tier includes

  • Research notes

    Methodology and calibration reports on the published record, written for readers who want to check the work rather than take it on trust.

  • Analyzer seat (opening soon)

    A seat on the play-level NFL analyzer, opening to subscribers soon. One million plays from 2015 through 2025, queryable by situation.

  • Early access

    New sport boards and tools before they open to free accounts.

Always free

  • Predictions

    Every prediction Troxler publishes stays free, with its result on the public record.

  • Model probabilities

    The probability behind each prediction is published with it. It is not sold separately and will not be.

$199.99 a year or $24.99 a month

7-day free trial, card required, cancel anytime.

Founding members see their founder rate after signing in.

Full pricing

How prices are captured

The schedule behind every price on the board, and the rule a price must pass before it is shown.

Capture

When prices are recorded

  • Kalshi and Polymarket prices are captured every 30 minutes from 10:00 AM to 3:00 AM ET during daylight time (EDT), or 9:00 AM to 2:00 AM ET during standard time (EST).
  • During a live NFL game, Kalshi prices are captured every 30 seconds.
  • Book consensus is drawn from US-regulated sportsbooks only.

Qualification

When a price is shown

  • A venue price is the ask, the price to buy, and never the midpoint.
  • The order book must be two-sided, with a spread of 5 cents or less, and the capture must be under 3 hours old. Otherwise the cell shows a dash.
  • Book consensus is de-vigged and needs at least two books.
  • Kalshi volume is counted in contracts and Polymarket volume in dollars, so the two are never added together.

FAQ

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Prediction-market data for sports. Kalshi and Polymarket prices with sportsbook consensus for comparison.

© 2026 Troxler Analytics, LLC

All predictions are for research and informational purposes only. Past performance does not guarantee future results.

Troxler is a research service. It is not an exchange, broker or sportsbook and does not accept orders or wagers. Prices come from third parties, can be up to 3 hours old and may not be available where you are.

League, team and sportsbook names and logos, including the Premier League name, logo and club crests, are trademarks of their respective owners and are used for identification only. Troxler is not affiliated with or endorsed by any league, team or sportsbook, including the Premier League and its clubs.

Kalshi and Polymarket are trademarks of their respective owners, used to identify the source of a price. Troxler is not affiliated with, endorsed by or a partner of either.