MSport is a pocket circuit coach for the days you train without a spreadsheet. You build a vertical station ladder, set work and rest for each rung, and let RUN walk the lane while you focus on form. Lane is the board. Numbered stations stack like track rungs. Add a blank station when you invent a drill, or pull polished moves from Kit. Tap any rung to tune the label, work seconds, rest seconds, and a short coach note. Kit is a ready library of bodyweight and footwork drills with starter timings. One tap drops a move onto your lane so you can assemble a session in under a minute. When you hit RUN, MSport counts work and rest through the ladder and stamps a Tape entry when the circuit finishes. Tape keeps finished loops on the phone with station count and total time. Nothing leaves the device. No account, no network, no permissions. Built for home floors, gym corners, and short outdoor loops. Keep the lane honest, keep the rest honest, and leave the clipboard at home.