RECORDS

-One of the three clubs that have only played in Primera División, along with FC Barcelona and Real Madrid.
-Five-time Liga and Copa Champions in the same season.
-First team to be permanently awarded the original Liga trophy.
-Achievement of Liga Championship unbeaten. 1929/30 Season. (Joint record).
-Record for biggest Liga win. Athletic Club 12 Barcelona 1. 1930/31 Season.
-Record for most goals in a Liga match, 14. Athletic Club 9 Racing 5. 1932/33 Season.
-Record for most goals scored in a Liga match as a visiting team, Osasuna 1 - Athletic 8 (1958/59 Season). (Joint record)
-Draw with the most goals in a Liga match, Atlético 6 - Athletic 6 (1949/50 Season).
-All-time Liga goalscorer (percentage) in the same season (home); with 5.44 goals per match in 1930/31.
-All-time Liga goalscorer (percentage) in the same season (away); with 3.11 goals per match in 1932/33.
-All-time Liga goalscorer (percentage) in one season; with 4.06 goals per match in 1930/31.
-Biggest away victories (percentage) in one season with 8 out of 9, 89% in 1932-33.
-Biggest number of away points (percentage) in one season with 16 out of 18, 89%, in 1932-33.
-Of the current Primera División teams, heaviest defeats inflicted at home on Barcelona, Betis, Espanyol, Sporting, (Zaragoza, Tenerife, Salamanca, Merida, Lleida and Celta).
-Of the current Primera División teams, heaviest Liga defeats inflicted away on Barcelona (0-6), Real Madrid (0-6), Espanyol (1-5) and Osasuna (1-8).
-Leading goalscorer in a Liga match (Bata with seven goals, Athletic Club 12 Barcelona 1. 1930/31 Season.) (Joint record).
-Leading goalscorer in Liga competition the most times (Zarra, six seasons).
-All-time goalscorer in the history of the Liga, Zarra con 253.
-Player with most appearances in Primera División, Zubizarreta, 622, the first 169 matches with Athletic Club.
-Twenty-four times Copa Champion (Joint record).
-Four permanently awarded Champion Cups (Joint record).
-Player with most Copa final wins (Gainza, with seven).
-Players with most Copa finals disputed (Gainza and Jose Mari Belauste with 9 confirm).
-All-time leading goalscorer in the history of the Copa, Zarra with 81.
-Leading goalscorer in a Copa match (Gainza with eight goals). (Athletic 12 – Celta 1. 1946/47 Season.).
-Player with most Copa matches: Gainza 99.