On our own behalf: The British online platform thesolesupplier.co.uk recently carried out a study of 476 marathon events worldwide that were certified by the World Marathon Association and evaluated on the basis of various criteria.
Categories were among other things organizational factors such as starting fees, infrastructure (catering, number and locations of WCs, medical security, hotel availability etc.), in addition, external factors such as weather conditions, air quality, temperature, elevation or distance profile.
Events were already excluded from the analysis if no data was available for more than one evaluation category. The remaining 81 marathon events are listed in a ranking after evaluation.
The Haspa Marathon Hamburg took 1st place in this ranking.