Keep it to one entry per day, tallying time and distance in the event of multiple activities (see Oscar the Grouch as an example).
We will tally at the end of the year and present a prize for the top male and female in the club in two categories - overall time and overall distance. This is supposed to be fun and a means to challenge yourself to get some miles in as the temperatures drop and the days shorten. Participate on any level and have fun!
If you log gym time it would obviously count as time, not mileage, unless there is a treadmill or erg component to the workout in which case you can log the distance on the machine's computer. Same goes for squash, pickleball, or even rock climbing. This is entirely on the honor system and will not be policed in any way. If you embellish your stats... well... you just have to live with yourself.
Sorry about all the dude photos ladies... I don't have any accessible shots of you.