001 / +EV Scanner

Find the bets
the books mispriced.
Before the line moves.

Iron Marker scans every major U.S. sportsbook against Pinnacle's sharp line in real time. The result: a live list of bets with positive expected value — and the Kelly stake to back them. Start free — a 7-day trial, then $39/mo. Cancel anytime.

Start your 7-day free trial → See how it works
4/5 “One of the best options out there” — reviewed by OddsPlays Read review →
Questions? [email protected]
Live scan Live
Lakers ML · DK +6.2% EV
Yankees -1.5 · FD +4.8% EV
UFC Pereira · MGM +3.9% EV
Arsenal o2.5 · Caesars +3.1% EV
Cowboys +7 · theScore Bet +2.7% EV
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Sports covered
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U.S. states supported
0/7
Always-on coverage
$0
Pro · monthly
Watch · Bankroll math in 2 minutes

Why most bettors go broke.
And the math that fixes it.

Lakers vs. Celtics · ML
Sharp line (Pinnacle) +118 / -130
DraftKings offering +135
Fair probability 44.8%
+EV % +5.3%
Kelly stake (¼) $10 / $1k roll
Time to game 2h 14m
002 / How it works

It's not picks.
It's math.

Pinnacle is the sharpest book in the world. Their line is the closest thing to a true probability the market produces. Other books move slower, react to public action, or simply price wrong.

Iron Marker pulls Pinnacle's line, devigs it, and compares it to every line on every other book. When a U.S. book is offering odds that imply a higher payout than the fair line says they should — that's a +EV bet.

We surface it. We size it with fractional Kelly. We deep-link you to the bet slip. You place it. Over hundreds of bets, the math compounds.

003 / Features

What we built, what we ship.

+EV math is the same everywhere. What separates Iron Marker is the build — what we put in, what we leave out, and what we refuse to ship until it's actually useful.

Available now
Freshness you can trust

Never sent to a closed line.

Every bet shows when it was scanned. Stale entries fade automatically with a warning banner. One-click re-scan before you walk to your sportsbook — so you always know the line was live when you saw it.

Sharp Pinnacle math

Compared to the real market.

Pinnacle is where pros and syndicates bet. Their line is the closest thing to true probability the market produces. We devig it and benchmark every soft book against it.

Player props + CLV

Props edges, and proof you have one.

The same Pinnacle +EV math applied to player props, where soft books lag most. Plus automatic closing-line-value tracking — we snapshot the no-vig close on every bet, so you can verify your edge is real over time.

Fractional Kelly sizing

Stakes calculated, not guessed.

Enter your bankroll once. Every bet shows the optimal stake based on the edge and your Kelly fraction. 1/4 Kelly recommended — the conservative setting pros actually use.

50-state aware

Built for your state.

Live in California? You won't see DraftKings bets you can't place. Live in New Jersey? You see everything. State-aware book filtering on by default — plus offshore books and prediction exchanges like Kalshi, so you get a full board in all 50 states.

Real-time alerts

The bet finds you.

Set your edge threshold and get a Telegram ping the second a qualifying +EV bet appears — separate thresholds for mainlines and props, so you're not buried in noise. Stop watching the scanner. The line moves fast; you move first.

Track + prove it

Every bet, logged and graded.

Track a bet in one click and Iron Marker builds your record for you — ROI, win rate, and profit broken down by sport, market, book, EV tier, even time-to-tipoff. See exactly where your edge is, and where it isn't.

Settles itself

Results that resolve on their own.

When a game ends, Iron Marker pulls the final score and grades your bet — won, lost, push — no manual entry. Your P&L lands on a calendar by date, so the whole season reads at a glance. Track hundreds of bets without the spreadsheet.

Built-in guardrails

It catches the bet you shouldn't make.

About to back the opposite side of a position you already hold? Iron Marker warns you first. It flags duplicates, and surfaces the occasional middle or arb when two books disagree enough to lock in value. Protection the soft books will never give you.

Straight to the slip

From edge to bet in one tap.

Every bet deep-links into the sportsbook's slip — right game, right market, already loaded. On your phone it opens the book's app if you have it installed. The line's live; don't lose it to a search bar.

Free tier

See real edges before you pay.

Every day the free tier shows the scanner's top 5 mainline +EV bets — the #1 edge fully unlocked with a one-tap bet slip link. No card, no expiry. Upgrade to Pro when you want the whole board.

On the roadmap
More coming soon

We ship constantly.

New features land regularly — and Pro subscribers get every one of them at no extra charge. The board keeps getting sharper. More on the way.

004 / Coverage

California. Texas. Florida.
We work where the others don't.

Most +EV tools assume you live in New Jersey. Iron Marker is state-aware out of the box — pick your state, get a filtered scan against the books you can actually use.

In legal states: DraftKings, FanDuel, BetMGM, Caesars, theScore Bet, Hard Rock, Fanatics, BetRivers. Everywhere else — CA, TX, FL and more — offshore books and prediction exchanges like Kalshi give you a full board, in the same scan.

In legal states
DraftKings FanDuel BetMGM Caesars theScore Bet Hard Rock Fanatics BetRivers
Everywhere else — offshore & exchanges, all 50 states
Bovada BetOnline BetUS MyBookie Kalshi Novig ProphetX Fliff
005 / Pricing

Start free. Upgrade when you see the edges.

Free tier forever, no card. Pro is 7 days free, cancel anytime in two clicks.

No card required

Free

$0 / forever
See real +EV edges every day, free
  • Top 5 mainline +EV bets daily, ranked by edge
  • #1 bet fully unlocked — book + one-tap bet slip link
  • Live count of every edge the scanner is seeing
  • Fractional Kelly stake sizing on visible bets
Create your free account →
Every book · every state

Pro

$39 / month
7 days free, then $39/mo · cancel anytime
  • U.S. books: DraftKings, FanDuel, BetMGM, Caesars, theScore Bet, Hard Rock, Fanatics, BetRivers
  • Offshore books + prediction exchanges (Kalshi) — a full board in all 50 states
  • 10+ sports · NFL, NBA, MLB, NHL, UFC, boxing, soccer, tennis, college football & basketball
  • Real-time scan engine · always on
  • Fractional Kelly stake sizing
  • Player props + closing-line-value tracking
  • Deep links straight to the bet slip
  • Bet tracking + ROI dashboard
  • Real-time Telegram alerts the moment an edge appears
  • Automatic closing-line-value grading on every tracked bet
Start your 7-day free trial →
Questions? [email protected]
006 / FAQ

Honest answers.

A positive expected value bet is one where the math says the book is paying you more than the true odds suggest. Over a single bet, anything can happen. Over hundreds of +EV bets, the edge compounds and you come out ahead — assuming the math is right.

Iron Marker doesn't predict winners. It finds places where the book has mispriced the line versus the sharpest source in the market, and it sizes your stake so a bad streak can't blow up your bankroll.

Iron Marker is built for the bettor turning $500 into $5,000, not a hedge fund.

Pro is one flat $39/mo — every feature included. The free tier shows the top 5 bets a day so you can verify the edges are real before paying.

Pinnacle takes the largest bets in the world from the sharpest players, and they don't limit winners. That feedback loop produces the closest thing to a true probability the betting market generates.

We pull Pinnacle's line, remove the vig, and compare it to every U.S. book. When the U.S. book is offering odds that imply a worse probability than Pinnacle's fair line — that's a +EV bet.

Yes. Iron Marker is state-aware. In legal states you'll see scans against the books you can actually use — DraftKings, FanDuel, BetMGM, Caesars, theScore Bet, Fanatics, BetRivers.

In non-legal states, the offshore tier scans Bovada, BetUS, MyBookie, and BetOnline — the books most U.S. bettors in those states are already using. Same price. Same math.

Eventually, some books will limit consistent winners — that's true of any +EV strategy. The mitigation is behavioral: spread volume across books, vary stake sizes, avoid round-number stakes, mix in mainline markets, don't bet exclusively into closing lines.

Throttling-aware features (per-book heat scoring, behavioral nudges) are on the near-term roadmap so the product helps you bet sustainably, not just optimally.

NFL, NBA, MLB, NHL, UFC/MMA, boxing, soccer (EPL, MLS, UCL, La Liga), tennis (ATP/WTA), college football and basketball when in season. WNBA in summer. New leagues get added when there's a credible Pinnacle line to anchor on.

Sign up and your 7-day free trial starts right away — the +EV scanner runs immediately across every major U.S. sportsbook. No waiting, no approval queue.

It's $39/month after the trial. Cancel anytime in two clicks from inside the app, no questions asked.

No. Iron Marker is an analytics tool. We surface bets where the math suggests a positive expected return, and we size stakes using fractional Kelly. The decision to place a bet — and the bet itself — is yours. We don't accept wagers and we are not a financial advisor.

Bet what you can afford to lose. Problem gambling? Call 1-800-GAMBLER.

Free tools & guides

Run the numbers yourself.

Every concept behind Iron Marker has a free, no-signup calculator — plus plain-English guides on the math the sharps use.

Calculator
Expected Value (EV)

See if any bet is +EV against its fair price.
Calculator
No-Vig / Fair Odds

Strip the juice out of a line to find true odds.
Calculator
Kelly Criterion

Size a bet by your edge, the right way.
Calculator
Odds Converter

American ↔ decimal ↔ fractional ↔ prob.
All 7 calculators → Betting guides → Glossary → Sportsbook value guides →

The line is moving. Be there first.

Get started free →
Free tier forever, no card · Pro $39/mo with a 7-day free trial · cancel anytime
Questions? [email protected]