Real Sociedad boss David Moyes was denied a win in the Basque derby as Oscar de Marcos equalised for Athletic Bilbao, who finished with 10 men.
Former Arsenal forward Carlos Vela headed Real into a fourth minute lead following Chory Castro's cross.
Inigo Martinez and Alfred Finnbogason wasted chances to extend Real's lead before De Marcos connected with Markel Susaeta's ball to equalise.
Athletic defender Aymeric Laporte was sent off for two bookable offences.
Real substitute Sergio Canales was denied a late winner when he hit the woodwork.
Moyes's side move up to 14th in the La Liga table ahead of an away game at Levante on 20 December, the last before the winter break.
Moyes has one win in his first four league games in charge, with two draws and one defeat.
Athletic remain 10th in the table.
- 6Martínez Berridi
- 24De la Bella
- 10Prieto Argarate
- 8GraneroSubstituted forZurutuzaat 64'minutes
- 18CastroSubstituted forCanalesat 64'minutes
- 14Pardo Gutiérrez
- 19Berchiche Izeta
- 23Gaztañaga Arrospide
- 10De Marcos
- 6San JoséBooked at 13mins
- 4LaporteBooked at 80mins
- 8IturraspeBooked at 85mins
- 17Rico Moreno
- 14SusaetaSubstituted forGurpegiat 81'minutes
- 29López CabreraSubstituted forVigueraat 60'minutes
- 19MuniainSubstituted forGómezat 78'minutesBooked at 90mins
- 7Etxebarria Urkiaga
- 12Bustinza Martínez
- 13Herrerín Buisán
- 22Fernández Hierro
- David Fernández Borbalán
- Shots on Target