May 17, 2026
Going an entire campaign without defeat is usually enough to guarantee a league title for most clubs.
But football has also produced a few extraordinary exceptions: seasons where teams refused to lose a single match, yet still did not finish as league champions. These rare cases are among the most controversial and fascinating in football history.
Below are the most well-documented clubs in major European leagues that went unbeaten for an entire league season but did not win the title.
S.L. Benfica are one of the few clubs in European football history to complete a league season unbeaten and still fail to win the title.
