On May 13 I bought a Garmin Forerunner 235, which I’ve been wearing practically 24/7. For the past couple of weeks, the watch has given me a VO2 Max of 47 and its “Race Predictor” feature has been predicting 22:XX for a 5k. (Riiiight…..) So, last Saturday I went to the track to see how many 7min miles I could string together, and I bailed after 4 laps. I figured then I may be able to break 24min in a 5k. (But consider last month I wondered whether I was even capable of breaking 30 minutes.)
This morning, the watch said my “Body Battery” was fully charged (to 100) and I was “Peaking” after my run yesterday. (Hmmm…so how did this watch surmise I was considering entering a 5k this weekend to find out where my fitness level was at?)
Tonight I went to the track and performed the McMillan Running marquee 5k Predictor workout: 5x1000m.
Per McMillan: If you can perform five 1000-meter repeats at your goal 5K pace in the last one to two weeks before your race, you will achieve your goal time. Period.
So here are the splits from the workout:
4:27.4 (Gulp, four more to go.)
4:24.3 (Hang in there.)
4:22.0 (Starting to feel some tightness in the quads and mammies.)
Summing the splits gives: 21:53.8. (Thank you Lord!)
But here is the kicker: the Garmin watch is now giving me a VO2 Max of 48 and the “Race Predictor” is pegging me for a 21:54 5k!
I kid you not.
So how did the watch algorithm figure that out?!?