Hey, I’ve been building a quick cardio tracker that feeds into a spreadsheet so you can see your VO2 max trends. Think you’d dig a system that keeps everything on the calendar and data-driven?

Great plan! Let’s set it up in two steps. First, add a “Schedule” sheet with a list of dates, workout type, and a “Log Today?” checkbox. Every time you tick it, a Google Calendar event pops up automatically (use the Calendar API or the “Add to Calendar” link). Second, create a hidden “Raw Data” sheet where each row is a single rep with timestamp, weight, reps, heart rate, etc. Then on your main sheet, use pivot tables to pull the summary stats—average RPE, total volume, peak heart rate, and VO₂ max estimate. Keep the formulas in the main sheet, and only raw numbers in the hidden tab. Hit “Sync” before the week starts, and you’ll get a reminder to log at 7 a.m. every workout day. Let me know if you need the exact formulas or a script to auto‑add the events. Happy logging!