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 →
Nations League 2026/27: who exceeded expectations?
Greece beat Sirius’s expectations by the widest margin. Northern Ireland gained the most Elo. Seven teams explain the Nations League’s first four rounds.

Which club players carried the biggest international workload?
Eight of the players in our selected comparison completed four full internationals. Here is how the 21 September–6 October break played out for prominent outfield players at clubs in Europe’s five major domestic leagues.

Ronaldo’s Portugal camp exit: what happened with Jorge Jesus?
Cristiano Ronaldo’s Portugal camp exit explained: the selection dispute with Jorge Jesus, Bruno Fernandes’s response and his unresolved international future.

Why these Nations League results already matter for Euro 2028
This autumn can shape next year’s qualifying draw—and leave a second route to the finals. Here is what matters for teams in every league, and why the hosts complicate the picture.

Zidane’s France: what has changed before the Italy reunion?
Two wins offer an early glimpse of the attacking support Zidane wants. The fullbacks help explain the idea; the defensive passages show how much remains to be tested.

Why are long throws so dangerous? Kayode’s weapon, explained.
The throw gets the ball into a crowded area. The danger comes from who meets it, where the next touch goes and who is ready when it comes loose.

What changes around Ronaldo when Portugal change their striker?
Félix scored beside both strikers. Four changes to Portugal's starting XI make the Norway win a question about the whole attack, rather than a verdict on Ronaldo.

England without Rice: who does each part of his job?
After the Spain defeat, England need to share the passing, carrying and defensive work — while keeping Jude Bellingham close enough to goal to make a difference.

Alaba to Udinese: what can they realistically expect?
David Alaba gives Udinese a credible route to better passing and organisation in defence. His recent workload makes the size of his role something to establish on the pitch.

Has the offside rule changed? Current law and the daylight trial explained
Has offside changed? Compare current IFAB Law 11 with the daylight trial: clear diagrams, Wenger’s proposal, Canadian testing and what the evidence shows.

What has Klopp actually changed in Germany?
Kimmich is back in midfield and the attacking roles are taking shape. Klopp’s first two games show how much still depends on the movements around them.

Is 2–0 really the most dangerous lead?
We studied 15,340 matches across nine seasons to separate losing a lead from losing a match—and show how time and team strength change the picture.

Kane, Mbappé and Yamal: three cases for the 2026 Ballon d’Or
Kane has the strongest season-long scoring record, Mbappé the most compelling collection of scoring crowns, and Yamal a claim that reaches beyond the scoresheet. The difficult part is deciding how much each should count.

Slow starts, explained: who should worry and who can improve?
Tottenham need more than a change of luck. Bournemouth have reasons for patience. Across five leagues, the opening weeks reveal different problems hiding behind disappointing results.

Summer signings 2026: seven arrivals already making a difference
Gutiérrez’s service, Frattesi’s runs and Aubameyang’s goals: seven new arrivals whose early contributions explain more than their transfer fees.

Top 10 U19 football talents to watch in 2026/27
From Max Dowman and Lennart Karl to Cavan Sullivan and Mezian Mesloub: ten young players worth following, the evidence behind their promise and the next step each needs to take.

10 U21 players poised for a breakthrough season in 2026/27
Ten under-21 players who could make 2026/27 their breakthrough season, with early-season stats, rising valuations and the stories behind their new opportunities.

September international break 2026: what to watch
England–Spain, Klopp’s Germany and Norway’s Portugal double-header: the fixtures, squad changes and club form shaping the September–October window.

Best players of 2026/27 so far: eight standout starts, explained
Raphinha’s goals, Groß’s craft and Valles’s saves: eight standout players across Europe’s five major leagues, with the context behind their early-season form.

The 10 most valuable U21 players in 2026, explained
Yamal leads Oddsivio’s September 2026 ranking of players aged 21 and under. Compare the top 10, value changes, playing roles and standout statistics.

Who has made the best start to the season? The results, chances and opposition explained
Barcelona have the clearest combined case. Bayern and Roma offer strong supporting evidence, while some of the most eye-catching points totals need a closer look.

A narrow lead for Sirius. Team scoring helps Janus.
Sirius finished almost level with the saved market forecast. Janus’s team-scoring estimates added more than its goal totals. Here is what held up, what missed, and where the record is incomplete.

Four league games, no goals: what is going wrong with De Zerbi’s Tottenham?
Spurs are getting plenty of the ball, but too few attacks end with a useful shot. The numbers and De Zerbi’s own explanations point to a problem bigger than finishing—and more specific than a broken system.

28 goals in six games: why Barcelona are scoring so freely
Raphinha and Lamine Yamal lead the scoring. The chances they create, the players around them and the strength of the opposition explain the start more fully.

The week ahead, explained: Europe first, rivalries next
Twelve games across seven competitions for 14–21 September: four result forecasts rechecked, fresh goals forecasts, and eight weekend games awaiting earlier fixtures.

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
Read player values, rolling 24-month profiles, squad importance and recent form on Oddsivio. A practical guide to the time windows, peer groups and missing data behind the numbers.

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