Rank listing of competitive performances of exercise on a machine

A system comprising:

• a first exercise machine that is configurable to transmit performance data to at least one other exercise machine over a network;
• and
• a tangible storage storing instructions which, when executed by a computing device, cause the computing device to:
• receive, from the first exercise machine, current performance data of a subject competitor performing a current instance of a lesser scope of an exercise activity having a predefined scope, wherein the current instance is performed on the first exercise machine;
• receive respective historical performance data representing respective historical performances of the lesser scope and the predefined scope during previous instances of the exercise activity by at least one other competitor on respective exercise machines of the at least one other exercise machine;
• identify a second competitor of at least one other competitor based on a relative ranking between (i) the current performance data and (ii) first historical performance data of the second competitor over the lesser scope in a corresponding previous instance of the exercise activity performed on a second exercise machine of the at least one other exercise machine;
• based on the current performance data and based on second historical performance data of the second competitor over the predefined scope in the corresponding previous instance of the exercise activity, compute a projected performance metric for the subject competitor over the predefined scope, wherein the projected performance metric comprises a time duration or a distance;
• and
• transmit the projected performance metric to a user device.