UPSET WATCHLIST · 2026 WORLD CUP

The matches the model flags as upset risks

The Onside model ranks every group-stage fixture by underdog combined probability (underdog win + draw). The 14 highest-upset matches are below — the favourite is still ahead but the betting market is likely to overprice them.

How we define an upset: the favourite is at least 5 percentage points ahead of the underdog AND the underdog's combined win + draw probability is at least 50%. That filters out coin-flip games and surfaces the matches where the betting market is most likely to overprice the favourite vs our model.

Probabilities refresh hourly. As results land, the model re-grades favourites — surprise wins ripple through champion-probability on the Tournament Winner tab.

WC MATCHDAY BRIEF · ONE LIST, TWO SEASONS

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