Layer Estimates:

Layer: ChicagoMarathonTrack (ID:0)
Count: 1
Extent:

XMin: -9760110.30870254
YMin: 5135734.63800592
XMax: -9753547.2418103
YMax: 5153931.49888289
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 105790 (3855)