Polar – zapfware https://www.zapfware.de/nmearemote/polar/polarsregates Llegiu més sobre Polar – zapfware
ORC sailboat data https://jieter.github.io/orc-data/site/polarsregatesprogramariratings Llegiu més sobre ORC sailboat data
How do Polar Plots Work on a Sailboat? - NauticEd Sailing Blog https://www.nauticed.org/sailing-blog/how-do-polar-plots-work-on-a-sailboat/regatespolars Llegiu més sobre How do Polar Plots Work on a Sailboat? - NauticEd Sailing Blog