I have a b5m, Tekin RSX, 17.5 motor and run a 2s 100c Lipo. How many amps am I running? Continuous?

Thanks!!

There is no continious.....

You can calculate the avarage by using the driving time started with a full battery and the needed capacity to charge the battery again.

Correct. To expand, you are never driving a single constant velocity going straight in a vacuum - you are always accelerating or braking/coasting. When batteries and ESC's have a constant or continuous rating on them, it is more of a reference point than a literal item.