Comparison
OddsRelay vs OddsJam
OddsJam has earned its consumer reputation: the arbitrage, positive-EV, promo-conversion and middles tooling is genuinely strong, backed by a mobile app, a 7-day free trial and coverage its site states at 150+ sportsbooks. The honest differences for a data buyer are procurement and payload. Its API is sales-gated — access starts at a contact form, and the developer docs now live under sibling brand OpticOdds — and it delivers raw prices, with no matched back-vs-lay output documented. OddsRelay's odds data API delivers UK prices already matched against exchange lay odds and rated, with bet365 included as standard.Powers a leading UK matched-betting platform.
Matched · rated
IllustrativeArsenal v Chelsea · Match Odds
Football · Arsenal
- Back · bet365
- 2.10
- Lay · Exchange
- 2.12
- Rating
- 98.1%
Paired, rated, liquidity-gated — qualifying loss and profit already computed. You render the row.
What OddsJam does well
- A genuinely strong consumer product: arbitrage, positive-EV, promo-conversion and middles tools, a mobile app and a 7-day free trial.
- Serious US breadth: the consumer site states 150+ sportsbooks, with US-led sports coverage — NFL, NBA, MLB, NHL, college football and basketball, soccer and golf.
- A large developer source list: the sportsbooks page behind its API (served under OpticOdds) runs to roughly 300+ sources, bet365 included.
- Real engineering depth on the API side: push streaming, player props, JSON/XML delivery and a historical odds database for backtesting.
- Exchange coverage at the raw level, including explicit Betfair Exchange lay-price sources and Smarkets.
- Major UK bookmakers on the developer list — Ladbrokes, Coral, William Hill, BetVictor and Unibet (UK).
Side by side
| Dimension | OddsJam | OddsRelay |
|---|---|---|
| Core output | Raw odds per sportsbook — prices its API page bills as real-time, player props, a historical odds database, JSON/XML with push streaming. Pairing, rating and any matching are your build. | Back prices arrive already paired to a live exchange lay price, rated, with the qualifying loss computed — oddsmatcher-ready. |
| bet365 | Listed on the developer sportsbooks page as one raw source among roughly 300+ — pairing it against an exchange price is your work. | Included as standard across all seven feed types, already matched — see the bet365 spoke. |
| UK bookmaker depth | The developer list includes major UK names — Ladbrokes, Coral, William Hill, BetVictor, Unibet (UK) — but the API pages document no UK regional coverage. | 60+ UK books including the domestic names big aggregators skip, normalised into one schema — live on the coverage dashboard. |
| Exchange lay prices | Available as raw individual sources — Betfair Exchange (with explicit lay-price sources) and Smarkets — unpaired to any back price. | Lay prices with liquidity from three exchanges (Betfair, Smarkets, Matchbook), pre-paired to every bookmaker back price and rated. |
| Regions beyond the US | Does not list a South Africa or Nigeria region; of the common SA books only Supabets appears, and Bet9ja, SportyBet and BetKing are not listed. | Deep UK today; South African and Nigerian domestic books are on the roadmap — stated as roadmap, not shipped. |
| Pricing posture | Sales-gated: the API page says "Contact us now to get premium access and pricing" and publishes no tiers. | Scoped per client: a trial key first, then a plain conversation — no contact-form wait. |
| Docs and API access | Developer docs are publicly viewable at developer.opticodds.com (where developer.oddsjam.com redirects); a licence key is requested via a contact form — no self-serve signup is described. | Public docs, no login wall, and a self-serve trial key that puts the matched feed in your product the same day. |
Where OddsJam is the right pick
For a US-facing product, OddsJam's ecosystem is hard to argue with. The consumer tooling — arbitrage, positive-EV, promo conversion, middles — is polished and widely used, and the API behind it offers breadth a UK-first feed doesn't try to match: a developer source list of roughly 300+ sportsbooks, push streaming, player props and a historical odds database for modelling. If that is your product's shape and a sales-led procurement process suits you, it is a credible, enterprise-scale choice.
One structural note before comparing further: developer.oddsjam.com now permanently redirects to developer.opticodds.com, so the OddsJam API and OpticOdds are effectively one data product with two front doors. The developer-level facts on this page — the sportsbooks list, the getting-started flow — are cited to the OpticOdds pages where they now live, and the OpticOdds comparison covers the same surface in more depth.
The gap that decides it: matched output
Matched betting and arbitrage products trade on how close a bookmaker's back price sits to the exchange lay price for the same selection. Neither the OddsJam API page nor the developer docs document a matched back-vs-lay output — no rating, no qualifying-loss field; exchange lay prices appear only as raw individual sources such as Betfair Exchange (Lay) and Smarkets. The pairing, the rating and the qualifying-loss maths are left to you to build. OddsRelay ships that pair as a single row — rated, liquidity included — the shape set out on the matched-betting spoke and the exchange-lay page, and in full in the API docs.
The vocabulary tells the same story. The consumer site does advertise UK content — "Get data-backed UK bets sent daily for free" — but neither the consumer nor the API pages list matched-betting terms, and the API pages document no UK, South Africa or Nigeria regional coverage. bet365 is present, honestly stated, as one raw source on the developer list; here it arrives already matched, because for a UK matched-betting audience it is usually the first book on the requirements list.
Test the difference in an afternoon
OddsJam's 7-day free trial is real, but it trials the consumer app; API access is requested through a contact form, so evaluating the feed itself starts with a sales conversation. Here the order is reversed: a free trial key puts the matched UK feed — bet365 included — into your own product the same day, and the live coverage dashboard shows coverage and freshness before you sign anything. Other rivals, including the sibling API brand, are compared on the comparison hub.
Pick OddsJam if
- Your product is US-facing and needs its breadth of US sportsbooks and player-props coverage.
- You want push streaming and a historical odds database for modelling or backtesting.
- The consumer tooling is the point — the arbitrage, positive-EV and promo tools, the mobile app and the 7-day free trial.
- You are comfortable with sales-led procurement and want an enterprise-scale supplier behind a very large source list.
Pick OddsRelay if
- Your product is a UK oddsmatcher, arb scanner or matched-betting tool and you want back-vs-lay rows, not raw prices.
- bet365 matched against exchange lay prices as standard is the requirement — not bet365 as one raw source to pair yourself.
- You want to evaluate self-serve: public docs and a trial key the same day, no contact form.
- UK depth beyond the mainstream names matters now, or South African and Nigerian domestic books are on your roadmap as they are on ours.
Questions
Does the OddsJam API include bet365?
Yes. As of 2 July 2026, bet365 appears on the developer sportsbooks list (served at developer.opticodds.com, where OddsJam's API docs redirect) as one raw source among roughly 300+. What is not documented is any pairing of that price against an exchange lay price — the matching is your build. OddsRelay includes bet365 as standard, already matched and rated.
Can I build a matched-betting product on the OddsJam API?
You can, but the matching layer is yours to build: neither the API page nor the developer docs document a matched back-vs-exchange-lay output, a rating or a qualifying-loss field. Exchange lay prices exist as raw individual sources, so the matching and the maths sit on your side of the build. OddsRelay delivers each row already paired and rated.
What is the relationship between OddsJam and OpticOdds?
They are sibling brands. OddsJam's developer documentation domain permanently redirects to developer.opticodds.com, and both sit within Gambling.com Group, which acquired their parent company, Odds Holdings, in a deal announced in December 2024 and completed in January 2025. For the API itself, the OpticOdds comparison on this site covers the same product surface in more depth.
Where do these competitor facts come from?
Every claim about OddsJam on this page is taken from its own public pages — the homepage, the odds-API page and the developer docs (now served under OpticOdds) — plus the acquirer's own announcement for the ownership facts. Each is linked in the sources block with the date we last checked it. If something has changed since, their pages win.
Keep comparing
The odds API pillar
The full product: coverage, feed types, processing and delivery.
Matched-betting data
What the processing layer replaces in your build.
bet365 odds API
Included as standard, already matched — the beachhead book.
The comparison hub
Every provider comparison, one honest index.
vs OpticOdds
The sibling API brand — the same developer surface, compared in depth.
How to test an odds feed
A buyer's checklist for evaluating any feed before committing.
Compare for yourself
A trial key delivers the matched UK feed — bet365 included — into your own product the same day; the live dashboard shows coverage and freshness first.