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:3 color:claret shift:(20,-5) text:Clay Regazzoni (Laps 1–3) from:3 till:7 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 4–7) from:7 till:8 color:blue shift:(20,-6) text:Jackie Stewart (Lap 8) from:8 till:9 color:claret shift:(20,-4) text:Clay Regazzoni (Lap 9) from:9 till:14 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 10–14) from:14 till:16 color:darkblue shift:(20,-5) text:François Cevert (Laps 15–16) from:16 till:22 color:purple shift:(20,-5) text:Ronnie Peterson (Laps 17–22) from:22 till:23 color:darkblue shift:(20,-7) text:François Cevert (Lap 23) from:23 till:24 c