After a year of letting it languish in the bottom of my backpack, today I resurrected my Garmin. For today’s run I kept pace on both it and the MapMyRun app, which confirmed, sadly, what I already strongly suspected: MMR overestimates distance by about 5%. That doesn’t sound too bad until you realize that 5% error at a 10:00 per mile pace equates to 30 seconds per mile–and there’s a big difference between 10:00 and 9:30 per mile! So I had pretty inflated pacing times for a lot of my recent runs.
But even with more accurate stats, today’s run was good news! Today I ran all the way out to the dam at the end of the Vasona reservoir (heh. “All the way.” Like it’s far. But it felt far!) and back: just a hair over four miles.
mile 1 Garmin 8:57; MMR 8:34 (sigh. if only…)
mile 2 Garmin 9:03; MMR 8:36
mile 3 Garmin 9:36; MMR 9:26 (you can tell here that MMR is also not very consistent in how much it errs).
mile 4 mixed pace: I jogged some at about 10:15, ran a couple fast pickups (100m-0.1 mile) at 6:45-7:00 pace, and walked in between.
Overall this came to 5k at 28:02 (Garmin time), plus some jogging and speed work at the end. I would be entirely satisfied with 28 minutes at Jenny’s Light next Sunday. It’s also very evident that at this stage of recovery/retraining, a little bit of speed work goes a long way: after just a couple sprints with AM a few days ago I found my resting pace had improved.
Otherwise this has been a good week for exercise: ran 2.78 mi around campus on Tuesday, and did our family walk route Monday, Wednesday, and Thursday. I did AM’s micro-conditioning workout on Monday and Wednesday also, which is less than I intended: somehow I can’t shake feeling it’s something I need to really set aside time and dress for, and I totally don’t: I can do 60 jumping jacks and some pushups and crunches in jeans!