BLOG
Field Notes
Football markets, transfer windows, methodology, and the machinery behind the product.
Football, explained: a complete guide to everything Oddsivio does
Anyone can tell you what happened. We show you why it happened, who reported it, how often that person turns out to be right — and what we expected before kickoff, graded in public.
Read article →A close week for Sirius. A mixed one for Janus.
Our match-result forecasts stayed close to the saved market benchmark. Inside the matches, Janus added most in home-team scoring and cards. Here is the week in two charts and two games.
The new football rules explained: five moments that will confuse fans this season
A second yellow overturned, a substitute kept waiting and a healthy player ordered off after his goalkeeper needs treatment. Here is what the Premier League’s 2026/27 changes mean during a match.
Why September’s international break is suddenly so long
Two autumn breaks have become one. Here is how the new calendar works, what to watch and when the leagues restart.
Promoted clubs, explained: who actually stays up
Fourteen clubs came up into Europe’s big five leagues for 2026-27 — history says about nine will still be there next summer. Every promotion since 2011-12 counted in our own match data, every newcomer priced by our player-value model, and fourteen dated survival calls we will grade in May. Promoted clubs, explained.
Top 10 most valuable U18 players, ranked by our model
Our model prices every player's current output weekly — a model estimate, not a market price. These are the ten most valuable U18 players — born 2008 or later, the international age-group cutoff — across Europe's big five leagues, counted down to a €60m No 1 who already has a full Germany cap.
The 2026-27 season, explained — all five leagues, with receipts
Europe’s big five side by side: where the money actually went this summer, who owns the deepest squads, what the market thinks it already knows — and all twenty-five dated calls we will grade in public in May, in one place.
The 2026-27 Ligue 1, explained — with receipts
Every squad priced by our player-value model, the summer window added up move by move, market expectations translated into plain probabilities — and five dated calls we will publicly grade in May. The 2026-27 Ligue 1, explained.
The 2026-27 Serie A, explained — with receipts
Every squad priced by our player-value model, the summer window added up move by move, market expectations translated into plain probabilities — and five dated calls we will publicly grade in May. The 2026-27 Serie A, explained.
The 2026-27 Bundesliga, explained — with receipts
Every squad priced by our player-value model, the summer window added up move by move, market expectations translated into plain probabilities — and five dated calls we will publicly grade in May. The 2026-27 Bundesliga, explained.
The 2026-27 La Liga, explained — with receipts
Every squad priced by our player-value model, the summer window added up move by move, market expectations translated into plain probabilities — and five dated calls we will publicly grade in May. The 2026-27 La Liga, explained.
The World Cup hangover, quantified
Spain won the World Cup on 19 July, and La Liga moved fixtures so its heaviest squads could breathe. We counted every minute of all 104 matches to rank which clubs start 2026-27 carrying the most tournament load — then checked our own data on whether the hangover is even real.
Follow the 2026-27 season on Oddsivio: set up your whole season in ten minutes
The 2026-27 season arrives in waves from this weekend. Eight stops around Oddsivio — goal alerts, match pages, highlights, forecasts with a public record, transfer receipts and player values — and a ten-minute setup that pays off for nine months.
The 2026-27 Premier League, explained — with receipts
Every squad priced by our player-value model, the summer window added up move by move, market expectations translated into plain probabilities — and five dated calls we will publicly grade in May. The 2026-27 Premier League, explained.
The 2026 summer window's endgame: two British records, 691 tracked stories, 19 days left
Our June preview tracked 114 source-backed rumour cards. Two months on: 691 tracked stories, 343 done deals, two British transfer records and a 79.7% journalist hit rate. The 2026 window's endgame, straight from production data.
How our player-value model works: 87 signals, one honest number
Every eligible player on Oddsivio carries an estimated value in euros. Here's exactly how the model produces it — the 87 signals, the benchmarks it learns from, the confidence rules, and the numbers we refuse to publish.
How to read an Oddsivio player page: values, percentiles and form, explained
Every player on Oddsivio has a page — estimated value, percentile traits, form, importance, career. This guide walks through one page slowly, using Lamine Yamal, so every number on it makes sense.
Get goal alerts on your phone: the step-by-step Oddsivio setup guide
Oddsivio can notify your phone the moment your team scores — no app store, nothing to pay. Every tap for iPhone and Android, plus an honest troubleshooting list for when notifications go quiet.
The 10 most valuable U21 players in Ligue 1, ranked by our model
Our model prices every player's current output weekly — a model estimate, not a market price. These are the ten most valuable U21 players at Ligue 1 clubs — six of them PSG's, counted down to a €110m No 1.
The 10 most valuable U21 players in Serie A, ranked by our model
Our model prices every player's current output weekly — a model estimate, not a market price. These are the ten most valuable U21 players at Serie A clubs — three of them at newly-Champions-League Como, counted down to Juventus' No 10.
The 10 most valuable U21 players in the Bundesliga, ranked by our model
Our model prices every player's current output weekly — a model estimate, not a market price. These are the ten most valuable U21 players at Bundesliga clubs, in the window that sold the would-be No 1 to Real Madrid for €125m.
The closing line, explained — and how our forecasts measure up against it
What the closing line is, why forecasters treat it as the exam that matters, and an honest first look at how our forecasts compare with the market’s final word — real ledger numbers, caveats included.
The 10 most valuable U21 players in La Liga, ranked by our model
Our model prices every player's current output weekly — a model estimate, not a market price. These are the ten most valuable U21 players at La Liga clubs, counted down to a €204m No 1 who tops our entire model.
Brier score, calibration and CLV: football prediction terms, explained
Brier score, calibration, baselines, closing line value — every football prediction term worth knowing, mapped to the plain-English labels Oddsivio uses, with live examples from our public record.
How to read Match Insights: a step-by-step guide to Oddsivio's predictions
Every match on Oddsivio carries a Match Insights tab — the model's forecast, per-market calls on goals, cards and corners, and the transparent statistics behind them. Here's how to read all of it, and where we keep the receipts.
Form is a myth. We checked 19,162 matches.
And head-to-head. And rest days. This is how Sirius — the engine that writes the verdict on every Oddsivio match page — decides what counts, shows its receipts, and gets graded in public.
The 10 most valuable U21 players in the Premier League, ranked by our model
Our model prices every player's current output weekly — a model estimate, not a market price. These are the ten most valuable U21 players at Premier League clubs, counted down to a €126m No 1.
A cleaner way to follow football
Most football apps try to show you everything. Oddsivio helps you understand the game in front of you — smart insights, must-see highlights, transfer updates, and data that makes sense.
The 2026 summer transfer window is already loud
A production-data guide to the coming window: 114 source-backed cards, source heat, club pressure, player photos, and the traps hiding in transfer gossip.
Follow along: RSS feed