CascaRun is a new native BlackBerry 10 app for sports tracking. It has a high focus on accuracy and usability, but provides very cool features such as:

Typical Sports Tracking features:
– Time, distance, speed, altitude tracking
– Heart-rate monitoring (since v1.1.0)
– Live map (support serveral map material like BlackBerry, OpenStreetMap and
– Diagrams (speed, intervals, altitude, HR)
– GPX file format

Unique features:
– Integrated lock screen
– Interactive training review, impresses most users
– Flash light (for night runs)
– Gesture control
– Configurable GPS filter
– Lightweight BB10/Cascades application

Additionally, it lets you share on Facebook and will be soon including voice feedback in English, Germand and French. CascaRun is available in BlackBerry World for the Z10 and Q10 for $3.99.