More options for “Availability” feature.
I love your new feature named “Available “ but it only allows you to be “unavailable.” Athletes travel for work, training, and or races and coaches need to be informed. The “availability” option should allow an athlete to input their status in this box. This would allow more communication between athlete and coach.

Sport type specific availability has been started!
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George Ganoung commented
A more specific and related suggestion on this one. Screen shot below for reference: The field "Training Availability" has "Unavailable" as a fixed value and its what shows up in the calendar and you can't edit it. This should be a free text field and it would make the feature much more valuable at the calendar level. Seeing a block on the calendar with "Tour of the Gila Stage Race" or "Tucson Training Camp" or "Wedding" is much more useful vs just a generic "Unavailable".