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AI parlay picks for sports betting.
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We research thousands of stats, matchups, and trends — and build your parlay like a professional sports bettor would.

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King Parlee

Built by AI. Backed by data.

What a Lock card looks like — MLBEXAMPLE
SP

Sample pitcher

Over 5.5 K · DraftKings

61%

-135

SP

Sample starter

Under 3.5 ER · FanDuel

58%

-120

SB

Sample batter

Over 1.5 H+R+RBI · BetMGM

56%

-110

Illustration only — not a build and not today’s board. Real builds are made on demand from the board. Every book’s prices are re-captured at least every 30 minutes, and every 5 minutes on game evenings.

How you build

Pick your style

Three main ways to build, all ranked by our own number — plus the Stack Builder, Moneyline, INSANITY, Where We Disagree and Anytime TD. Our number is built from our own data first; on some markets the books’ price is then weighed in as one more input.

Lock

Built from the top quarter of tonight’s board, ranked by our confidence that each prop hits — on NFL, NBA, NHL and MLB, only the props our number says pay at their price.

Edge

Built from the next group down: the legs ranked below LOCK, to the top half of the board — on NFL, NBA, NHL and MLB, only the props our number says pay at their price.

ParlayHub

Parlay My Way

Tell us the sport, the games, the props and how many legs. Parlay My Way builds from the top 60% of that ranking, from the top down, to exactly the number of legs you ask for.

Where it works

Picks for NFL, NBA, NHL, college football and MLB

Player props, moneylines and same game parlays, every leg ranked by our number. Pick one game in Parlay My Way for a same game parlay.

Works with DraftKings, FanDuel and Kalshi

Our number sits beside the prices at DraftKings, FanDuel, BetMGM, Caesars and more. Send a parlay to your DraftKings or FanDuel bet slip with its legs loaded (the slip names any leg the book doesn’t list, to add by hand), or pick Kalshi and open each leg’s market there.

Research Hub

Pro tools. Part of ParlayHub Pro.

Players, matchups, simulations and your own record — in your pocket.

EFX Environmental Factor Index

Player Intelligence

Search any player. Instant AI breakdown of every available prop.

Simulation Lab

Run 10,000 Monte Carlo iterations. Adjust variables. See distributions.

Matchup Lab

Pitcher stats, park factors, weather, umpire tendencies in one view.

Line Movement

Where each of a player’s lines opened and where it sits now, on his research page.

Correlation Builder

See which props move together and which cancel each other out.

Edge Report

Your hit rate by prop, sport and book, set against our confidence, with a bankroll tab beside it.

By the numbers

10,000

simulations per prop

Your book

DraftKings, FanDuel, BetMGM, Caesars and more

StatcastMLB Stats APIClaude AIMonte Carlo

APEX Scoring

Ratings and moneylines.

APEX is our ratings and moneyline side: its game models make our number for both sides of each MLB and NFL game on the Moneyline tab. The tab’s NBA, NHL and NCAAF games are priced from our own team ratings. Its 16 indexes — 10 NFL, 6 MLB — are research, laid out on the game and player pages for you to read.

See all 16 indexes

NFL — 10 indexes

SDR logo

SDR

Each defense’s points and yards allowed, adjusted for the offenses it faced.

GFI logo

GFI

How each game should play: scoring, how close it stays, and the pregame forecast.

QSI logo

QSI

Tonight’s starting quarterback against this defense, with a passing ceiling and floor.

OLI logo

OLI

Each offensive line’s PFF block grades against the defense it faces.

DPI logo

DPI

Each defense in coverage and in the pass rush, from PFF and FTN charting.

PFI logo

PFI

Each player’s workload and freshness: snaps, injury report, rest, age.

MGI logo

MGI

What a game is worth to each club: playoff picture, primetime, revenge, trap spots.

RZI logo

RZI

Red-zone trips and touchdowns for each offense, from EPA and SDR.

OTI logo

OTI

How each referee crew called its games, scored after the game.

MPI logo

MPI

How the books’ lines moved before kickoff, beside APEX’s own number.

MLB — 6 indexes

EFX logo

EFX

Park, weather and the plate umpire, scored per game.

PIX logo

PIX

Each starter’s season, last five starts and Statcast stuff, against the opposing team.

HIX logo

HIX

Each batter’s season, last 15 games and split against the starter’s hand.

BFX logo

BFX

Each bullpen’s closer and top relievers, and their pitches over the last three days.

UZX logo

UZX

Tonight’s plate umpire and his strikeout lean, from UmpScorecards.

MIX logo

MIX

Each batter against tonight’s starter: career meetings, pitch types, handedness.

See how it works

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