On Friday the 13th I did my first triathlon! Well, more like a mock-athlon. The idea was to test my limits before the Ironman 70.3 in Marbella, my first real triathlon event. Under the excellent supervision of coach Karen Parnell (Ironman U, Twitter) I swam 2000m in the pool, followed by a bike/run “brick workout”: A brick workout refers to the stacking of two disciplines during the same workout,