This is the shortest FKT in Michigan at 3.35 miles with 176' of elevation gain. It's far too short to be in my wheelhouse, but it's a great single-track trail and I do a lot of my training here, so I gave it a shot. The previous FKT had stood for 4 years, but I barely snuck past and beat it by 10 seconds (finishing in 20:18). I'm not accustomed to these short, fast efforts and I was already feeling it after the first climb less than a mile in. I thought the record was out of reach and coasted for a bit, until some quick mental math helped me realize that I still had a shot. I was able to close with a fast last mile while avoiding stumbling on the many roots covering the trail, which is the real key to posting a fast time on this route. I'd like to try this again someday and break 20 minutes, but for now I'll go back to my preferred 30+ mile efforts.
FKT Website (Lake Lansing Trail)