The Mainz Company Run will take place in Mainz on September 3.
As a result, bus routes 6, 28, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 70, 71, 78, 79, 80, and 81 will be rerouted on that day.
You can find more information on the Mainzer Mobilität website.