Data & sources
A valuation is only as trustworthy as the data underneath it. So here's exactly where ours comes from — what's licensed, what's open, who we credit, and what we deliberately don't touch.
The feeds we run on
Our primary feed, licensed commercially. It powers player and club statistics, fixtures and results, squad data, and the real 2026 World Cup draw. This is the backbone the valuation model reads from.
A supplementary competitions-and-fixtures feed we use to cross-check coverage and fill scheduling gaps across the leagues we track.
An excellent open analytics resource for MLS and North American football. We use it under its free terms and credit it visibly wherever its data informs what you see — see the attribution below.
The circular country flags across the app come from the MIT-licensed circle-flags project. Clean, consistent, and freely licensed — no national emblems are used in any official capacity.
Some North American football data is provided by American Soccer Analysis. We're grateful for their open work and credit it here as their terms require.
What we deliberately don't use
Being rigorous about data also means being disciplined about rights and trademarks. To keep Onside clean and independent:
- ●We do not use licensed player photographs or club crests. Player imagery and club badges are rights-protected, so you won't find them here. We use our own marks, neutral avatars, and the open-source circular flags described above.
- ●Onside is not affiliated with, endorsed by, or associated with FIFA. “World Cup” is referenced descriptively, to identify the tournament our coverage relates to — not as any official designation, partnership, or licence.
- ●Valuations are model estimates. Every figure on Onside is produced by our own model — not sourced from any official market, club, or third party as a quoted price. See the methodology for exactly how they're built.