The advantage of having the marathon in the city center is that you can choose the type of accommodation wich suits best your preferences.
Plenty of cheap apartments or luxury hotels are nearby.
Here you can find some suggestions:

 

- Hotel Palazzo Zichy
- Mercure Budapest Korona
- Hotel Ibis Budapest Centrum
- Hotel Leonardo
- Corvin Point Hostel
 

 

 

The address of the marathon venue is:

1085 Budapest, Mária utca 54.