Tools · Review

OddsJam review

OddsJam is the arbitrage and positive-EV tool most US bettors use: 150+ sportsbooks and exchanges, including Kalshi and Polymarket, pre-match and live. Here is what each plan does, what it costs, and whether it pays for itself.

Updated October 16, 2026 · Plans and prices checked on OddsJam's website

OddsJam at a glance

How OddsJam works

OddsJam watches prices across US sportsbooks, exchanges and prediction markets in real time. When the best prices on two sides of a market add up to less than 100% implied probability, it shows the arb with the exact stakes for each side. When one book's price is better than the sharpest books' consensus, it shows a positive-EV bet. Click through and, at select books, it opens the bet slip directly; on Kalshi, Polymarket and ProphetX you can place the trade without leaving OddsJam.

Pre-match arbitrage

Bet both sides before the game and keep the difference either way. OddsJam puts typical returns at 2% to 3% per arb, which matches what we see in US markets. Check any arb, and round your stakes, with our arbitrage calculator; it handles American odds.

Live arbitrage

In-game prices move fast and books update at different speeds, so live arbs are bigger, around 3% to 5% by OddsJam's figures, but last seconds. They need quick hands and well-funded accounts. If a price moves before your second leg fills, our hedge bet calculator shows what you can still lock in.

Positive-EV bets

A positive-EV bet is a single bet at a price better than the true probability, judged against the most accurate books. Each one can lose, but over many bets the edge adds up. To see how far a price is from fair odds, try the margin tool in our odds converter.

Prediction markets

This is where OddsJam stands out. Kalshi and Polymarket often price US games differently from sportsbooks, and OddsJam includes them in its scans. For the fee math behind those trades, see our Kalshi arbitrage calculator and prediction market arbitrage.

Pricing: which plan to choose

OddsJam also sells two one-sided strategies: Sharp Money ($199.99/month), which follows sudden spikes in betting volume on Novig and ProphetX, and Prediction Traders ($449.99/month), which follows top prediction-market traders. Those bets can lose individually and aren't arbitrage, so start with Pre-Match Arbitrage & EV, and add Live once your routine is fast. See current prices.

Is OddsJam worth it?

On Pre-Match Arbitrage & EV ($199.99 a month), with $300 staked per arb and a 3.5% average margin ($10.50 an arb), about 19 arbs a month cover the cost; at $500 an arb it takes 12. OddsJam itself recommends 20 or more bets a day, so an active user covers the subscription within the first days of the month. Live Arbitrage & EV, at $499.99, needs about 48 arbs at $300 and makes sense for full-time arbers. For monthly scenarios, see is arbitrage betting worth it.

The free trial is the honest test: run a week with your own books and stakes, and log every bet before you pay.

OddsJam vs RebelBetting vs BetBurger

In the US, OddsJam is the pick: it covers the books and prediction markets you actually use. Outside the US, start with RebelBetting for the easiest start or BetBurger for volume. For every option, see the best arbitrage software for the USA.

How to start

1. Start the OddsJam 7-day free trial on Pre-Match Arbitrage & EV.
2. Filter to the sportsbooks and prediction markets you already have funded accounts with, in your state.
3. Take arbs of 2% and up, round your stakes, and spread bets across books; see arbitrage without getting limited.
4. Log every bet. At the end of the week you will know your real numbers before you pay.

FAQ

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