Evrai
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Data → discipline → a sharper you

Stop guessing if you have an edge.

Evrai helps you prove the quality of your decisions across sportsbook bets and Kalshi or Polymarket positions — with objective evidence, from idea to impact.

Start free See the method

Same questions. A higher standard.

The evidence trailillustrative

1. Source & fill

Bring in your bets and market positions.

Example (illustrative)
Sportsbook
12 bets
Kalshi
8 positions
Polymarket
6 positions

2. Fair value

Estimate true probability and expected value.

Example (illustrative)
Model probability
54.2%
Market probability
50.0%
Fair value spread
+4¢

3. Execution quality

See how well you executed versus the close.

Example (illustrative)
Your price
+138
Closing price
+125
CLV
+2.3%

4. Bankroll risk

Size intelligently. Track long-term impact.

Example (illustrative)
Kelly fraction
4.8%
Recommended size
2.5%
Portfolio VaR (95%)
3.1%
From a bet to a better you.

Built for both markets

Sportsbook · closing line value and units Prediction markets · FVS and dollars

Different markets. Same discipline.

A record you can interrogate, not another stream of takes.

Evrai keeps the questions that matter connected, so a price, a result, and your exposure do not live in separate stories.

Closing line value

Track the close.

See your execution quality with closing line value across every bet and position.

Price vs. closeIllustrative
Your priceClosing line

True probability

Reconcile positions.

Combine your bets and market positions, estimate fair value, and find mispricings.

Example (illustrative)

MarketPriceFairEdge
Game total-110-125+2.1%
Kalshi position42¢46¢+4¢
Polymarket position58¢53¢-5¢

Bankroll management

Size risk.

Use model-driven sizing and track portfolio risk across all markets.

Recommended size (illustrative)

2.5%

of active bankroll

Kelly fraction
4.8%
Portfolio VaR (95%)
3.1%

What Evrai measures

One discipline. Two market-native lenses.

Evrai does not sell picks or promise outcomes. It gives sportsbook bettors and prediction-market traders a clear record of price, execution, exposure, and risk.

Sportsbook analytics

Measure your process against the close.

Log bets manually, compare your price with the closing line, and keep CLV, ROI, units, and bankroll history in one record.

  • Closing Line Value (CLV)
  • ROI by sport, bet type, and book
  • Bankroll and drawdown history

Prediction-market analytics

Reconcile a position with the market that created it.

Connect Kalshi and Polymarket or log positions yourself. Track fills, balances, P&L, and Fair Value Spread without blending them into sportsbook math.

  • Kalshi and Polymarket sync
  • Fair Value Spread
  • Position and balance reconciliation

Decision tools

Make risk visible before a result arrives.

Use Kelly sizing, investigate performance patterns, and connect model output to the positions it produced. AI player-prop analysis is available through plan credits.

  • Kelly sizing
  • Model builder
  • AI player-prop analysis
Compare plans and feature access →Read product and integration FAQs →
── AI Prop Analyzer

Bayesian edge on every player prop.

Enter a player, line, and odds. Our 4-layer model — Bayesian baseline, matchup context, Kalman form filter, and Monte Carlo simulation — runs live web research to give you a true edge percentage and recommended stake size.

🏀
NBA Player Props
Points, rebounds, assists, PRA, 3PM, and combos
⚡
4-Layer Framework
Bayesian · Kalman · Monte Carlo · Web search
📊
Live Edge %
Compares your model probability vs book implied odds
💡
Market Inefficiencies
Detects stale lines, sharp money signals, and mispricing
🏀
NBA Prop Analyzer
Bayesian · Kalman · Monte Carlo · Web search
Live
Bet details
Player
Team
Opponent
Prop type
Prop line
Odds
Stage
⚡ Analyze This Bet

Start the record

Give the next decision its full context.

Start with the markets you already follow. Log manually or connect an account, then let the history become more useful than a single outcome.

Start free