We use this window to determine if a Peak or Best Effort is a top 3 achievement in your current fitness and to determine if you start to decline.
            
                - Breakthrough: We send a Breakthrough when a top (e.g. #1) Peak or Best Effort is achieved on a metric you follow.
 
                - Peak Achievements: These notifications are sent if we observe a top 3 Peak (e.g. Heartrate, Bike Power or Run Power).
 
                - Segment Achievements: Top 3 watts/kg on all segments completed with power (running and cylcing).  They're NOT ranked over an 8 week window, they are preserved for your personal ranking list and for the segment leaderboards (if activity isn't private).
 
                - Best Effort: For running activities we pivot the Peak Achievements to be over the distance of the Best Effort instead of over a time period.  For example, your peak average HR or run power over 5K instead of over 20 minutes.  The duration based ones are still calculated and available for factors assessment.
 
                - Segment PR: When you set a new PR on a watched segment we'll tell you what the forecasted Wind Index was as well as if you set your best watts/kg so you can decide if you have more PRs in the tank!
 
            
            Achievements Coming Soon
            
                - Decline: We will soon be sending (pending Peak subscription model) when a top Peak Threshold has been lost (not achieved again in window).
 
                - TrainingPeaks Breakthrough: Our plan is to begin sending achievements when you have a top 3 TSS during the window.