Saturday, April 18, 2015

F1 2015 Bahrain - How Qualifying Progressed...

A quick sketch of when and what laptimes were recorded as qualifying progressed:

The purple and green times are cumulative times taken through the session. Drawing on a commentary about the qualifying session that appeared on the JamesAllenOnF1 blog, Charts are for Reading demonstrates what sorts of stories we might be able to read from this chart...

And a quick sketch of the session utilisation chart:

Bahrain 2015 FP3 Session Utilisation

A quick sketch of the FP3 Session utilisation chart:

and an annotated variant I'm working on (currently unchecked) that includes session classification, gap to best in session, and gap (difference) to classified position ahead:

Development Progress Tracked via FP2

An interesting chart I spotted from a comment on the JamesAllenOnF1 blog linking to a Brazilian F1 blog by Will Mesquita, Papaya Orange, showing some sort of (off-the-)pace development as tracked by FP2 session times, presumably, although I'm not sure what exactly the vertical y-axis shows?

Bahrain 2015 FP2 - Long Run pace

Laptimes for long run stints (10 laps or more) from FP2:

And for stints of at least 6 laps:

Friday, April 17, 2015

FP2 Bahrain - Session Utilisation Charts

A quick sketch of the basic session utilisation chart (as originally described here) for second practice in the 2015 Bahrain Grand Prix:

And some toggle views over it...

Firstly, showing lap deltas from one lap to the next (that is, the time difference between each lap and the previous lap in the stint), except for the first full lap of the stint, for which the laptime is displayed:

On the lap delta view, a stint with a constant run of red 0.1 values shows that a driver's time is getting worse (increasing by +0.1s) per lap. A run of blue -0.1 values would show he has getting 0.1 seconds faster on each lap.

Secondly, using stint gap, taken as the time difference between a lap and the first complete laptime from that stint.  If you look carefully, the stint gap times are displayed using italics as a point of difference from the lap-delta view. If a driver was getting 0.1s worse per lap in a stint, the numbers would increase 0.1, 0.2, 0.3,... lap on lap. As with the lap-delta view, the actual laptime for the first complete lap in the stint is displayed in full. The stint gap times show the difference between this first stint lap reference time and the laptime for a lap later in the stint.

[On my to do list are some annotations to the chart, to include things like the total number of laps run in the session by any given driver, and perhaps the gap to the session best overall laptime as well as the gap to the car classified one position ahead. And I still need to sort out the ordering!]

Bahrain FP1 - Session Utilisation

How the drivers used FP1...