Machine Nerve is David Hodge Jr’s motorsport software company. Every tool started at a race weekend. This note is about Road Atlanta in 2026.
The topic
A four-hour race asks a driver for long stints. Focus, flow and fatigue are the three words drivers use for what happens inside them. David treats all three as a research topic.
The research framework for Road Atlanta set its own limits. It said that the platform records signals and computes research hypotheses. It said that no single signal is a focus meter. It said that simulator coaching is performance support and not medical guidance. The driver’s report and a coach’s judgment stayed first-class inputs.
The preparation
The framework was written as simulator preparation for the Road Atlanta race. It sets out how a driver and a coach can look at a long stint from several angles. These are the driver’s own report, the driver’s control inputs and the signals from the sensors.
The tool
Driver biofeedback in Machine Nerve is the tool for this topic. It gives a driver and a coach a place to study long stints. The tool does not give a driver a score for their state. It keeps the evidence together so a driver and a coach can talk about it.
At the track
David raced the Road Atlanta four-hour Porsche Endurance Challenge in September 2026. Read the race story for the result.
Read about the other tools on the building page. The tools sit at machinenerve.com.