Now it is a tiered award chart (Certain number of miles up to a certain distance) as opposed to the old chart which is purely based on the distance between that route. (takeoffwithmiles.com)
With Southwest, once you receive a certain number of miles or points, you're granted Companion Pass Status. (entrepreneur.com)
For instance, the company will send subscribers who run a certain number of miles each week items that are also based on the data it gleans from more regular customers as well as on e-commerce data such as what is bought more frequently and gets top reviews. (fortune.com)