Colors = id:canvas value:rgb(0.937,0.937,0.937) id:linemark value:gray(0.8) id:linemark2 value:gray(0.9) BackgroundColors = canvas:canvas PlotData = mark:(line,linemark) from:start till:6 color:black shift:(20,-5) text:Bruce McLaren (Laps 1-6) from:6 till:7 color:white shift:(20,-5) text:John Surtees (Lap 7) from:7 till:12 color:black shift:(20,-5) text:Bruce McLaren (Laps 8-12) from:12 till:13 color:purple shift:(20,-5) text:Jackie Stewart (Lap 13) from:13 till:14 color:black shift:(20,-5) text:Bruce McLaren (Lap 14) from:14 till:16 color:darkblue shift:(20,-5) text:Jo Siffert (Laps 15-16) from:16 till:18 color:purple shift:(20,-5) text:Jackie Stewart (Laps 17-18) from:18 till:26 color:orange shift:(20,-5) text:Denny Hulme (Laps 19-26) from:26 till:27 color:purple shi