Hotel/Pension Corniche
This guesthouse is only 150m away from the marathon location. It has opened in 2013. They have single, double and triple rooms. Unfortunately, they were not able to offer a discount for MAratango participants this year.
https://www.corniche-hotel.de/
Rhein-Neckar Hotel
It is in 15 min walking distance to the marathon location. Besides double and single rooms, they offer apartments for up to 7 persons.
Pension Bilharz
This guesthouse is just in 5 min walking distance to the marathon location.
https://www.pension-bilharz.de/
list of hotels and B&Bs:
Touristeninformation Mannheim
Rhein-Neckar-Guide.de
AirBnB community marketplace ->Mannheim