Upwind & VMG

In almost every discipline - from dinghy to foil - the winner is rarely whoever had the highest boatspeed for a few seconds. It’s whoever made the best progress toward the next mark. Velocity Made Good (VMG) is the common language for that: how fast you’re actually climbing or sliding on the course.

KnotNow relates your GPS course to wind direction and shows VMG on port and starboard, pointing, and upwind progress so you can see whether you were genuinely high and fast - or pinching, footing, or sailing the wrong side of a shift.

Because the forecast at the club rarely matches the water, you can adjust the reference wind on the session to line up with what you actually sailed. That keeps the debrief honest: you’re measuring against your day, not a model that stayed ashore.

• Port vs starboard VMG - see which tack paid.
• Pointing & progress - connect angle and boatspeed to height on the course.
• Wind alignment - correct strength and direction when reality diverged from the default.