High-performance amateur racing is rarely limited by willingness to work. The difference at Challenge Canberra 100 is whether that work produces usable speed across a 2 km swim, 80 km bike and 18 km run. This 24-week plan is for an experienced athlete who already has an aerobic base and wants a sharper, more demanding path toward race-day execution. Canberra’s four-lap bike course rewards controlled aggression. Fast straights, gentle undulations and the Hindmarsh climb create repeated ...