Where the numbers come from, and how they are worked out.

• Odds

  The Odds API: moneylines, spreads and totals from 8 US books, with FanDuel's line the one Unitley shows. Player props are fetched on request.

  • On a schedule, not live: see below
  • Every price shows how old it is

• Schedule and results

  nflverse's schedule: kickoff times, venues, roofs and final scores.

  • Checked every 5 minutes while games are on, hourly otherwise

• Live status

  BALLDONTLIE: whether a game has started or finished, and a second final score to check results against.

  • Every 5 minutes while a game is on, hourly otherwise, until both sources agree on the final score

• Injuries

  nflverse's copy of the official injury report, merged with the rosters' reserve lists.

  • Checked for new files every hour
  • No game-day inactives

• Stats

  nflverse's weekly player and team files, summed by Unitley into season totals.

  • Checked every 3 hours

• Weather

  The US National Weather Service, with MET Norway as its fallback and for games abroad. Domes are skipped.

  • Every 3 hours, for games in the next 7 days

1. 01

   Tuesday, 10:00 ET

   Opening lines for the coming games.

2. 02

   Saturday, 10:00 ET

   After Friday's injury reports. Skipped when a kickoff window's call already runs that Saturday.

3. 03

   About 90 minutes before each kickoff window

   One call per window: kickoffs within 90 minutes of a window's first share it.

4. 04

   Player props, on request

   In the 24 hours before kickoff, cached and shared, so one load serves everyone.

console.unitley.com

01

Every price says how old it is

Each game's page shows its prices, how the line has moved since Unitley first saw it, both teams' injuries and the stadium's weather.

• If the month's odds calls run out, the last prices stay up with their age
• Prices vary by state and move often: check your own book before betting

• 01

  Implied chance

  What a price says about the chance it wins: 1 ÷ decimal odds. −110 is 1.91 in decimal, so 52.4%.

  • It includes the book's margin, so both sides add up to more than 100%
• 02

  No-vig chance, multiplicative

  The margin taken out by scaling each side down by the same factor. −150 / +130 add up to 103.48%; scaled, they are 57.98% / 42.02%.

  • The method Unitley uses for the slate
• 03

  No-vig chance, power

  Each implied chance raised to the one power that makes them add up to 100%. It takes more of the margin from the longshot: the same market comes out at 58.40% / 41.60%.

  • Offered by the no-vig calculator and calc_no_vig_odds
• 04

  Consensus and best price

  For each market, the no-vig chances of every book that prices FanDuel's exact outcomes and line, averaged. The best price is the best odds at that same line; a tie stays with FanDuel.

  • Books on a different line are left out, not adjusted
• 05

  Expected value

  What a bet is worth on average at a given chance: chance × profit − (1 − chance) × stake. $100 on −150 at a 63% chance is worth +$5.

  • The slate's EV is FanDuel's price at the consensus chance
• 06

  Edge

  Your chance minus the market's, in percentage points: 72% against a 68.75% line is an edge of 3.25 points. Compare against the no-vig chance, not the taxed one.
• 07

  Fractional Kelly

  Full Kelly, (b × p − q) ÷ b, says to bet 6.0% of your bankroll at a 53% chance on even money. Quarter Kelly bets 1.5%, Third Kelly bets 2.0%, Half Kelly bets 3.0%, each under its profile's cap of 2%, 3%, 5%.

  • A bigger edge meets the cap: at 55%, Quarter Kelly's 2.5% is held to 2.0%
  • Then your max stake and the room under your loss limits

  Bankroll and limits
• 08

  Parlays

  The legs' decimal prices multiplied: 1.91 × 2.10 × 1.80 = 7.22, or +622, an implied 13.85%. Your combined chance multiplies the legs' chances, which holds only for independent legs.

  • Legs on the same game raise a correlation warning

  The Parlay Builder

Try them on your own numbers with the calculators, or read the guides on implied probability, vig and Kelly.

What they cover

Odds, stats and injuries, weather, betting math, bankroll and bets, picks, knowledge, research.

Runs as you

Every call runs as the signed-in user, with that account's permissions: it reads and writes your bankroll, picks and bets, and no one else's.

Who does what

The AI reads the data and reasons about it. Unitley does the arithmetic and sizes every stake, so a model never makes up a number.

Each tool, its arguments and the REST routes are in the docs.

No bets placed

Unitley never places a bet or holds money. You bet at your own book, where it is legal.

No live odds

Prices come on the schedule above, not in real time, and there is no in-game betting yet.

No guarantees

Positive EV is an average over many bets at a chance that may be wrong. Any one bet can lose.

Limits that warn

Loss limits hold suggested stakes down, but a bet you log past one is recorded with a warning, not refused.

If betting stops being fun, help is here.