The High-Speed Dependency on Continuous Instruction
Evaluating rally drivers against one another by stage times assumes both crews can commit to road hazards with equal visibility and preparation. Unlike circuit racing, stage rallying relies entirely on the co-driver delivering advance descriptions of blind crests, tightenings, and braking points. When that communication breaks down, comparing pure driver speed becomes impossible, as the driver is immediately forced to lift off the throttle and rely solely on forward sightlines.
Physical disruption inside the car remains a persistent risk on violent surfaces. During the Cambyreta stage of Rally del Paraguay, M-Sport driver Josh McErlean experienced dropped notes when co-driver Eoin Treacy had his note book knocked from his hands over a hard jump landing. In incidents involving WRC lost pace notes, the driver loses the ability to anticipate what lies beyond blind brows, turning high-commitment sections into cautious, reactive driving that artificially widens the timing gap to rivals.
Reconnaissance Deficits and Incomplete Information
Time loss does not only occur when physical books are dropped; flawed or missing descriptions from reconnaissance create similar performance deficits. Low-speed recce restrictions can limit how accurately a crew maps high-speed behavior, as Thierry Neuville observed during the 2022 Rally Japan when recce limits around 60 km/h made judging full-speed line commitments difficult.
When pace details are missing or compromised, drivers must brake early and scan visually to preserve the car. At the 2026 Rally Japan, Takamoto Katsuta conceded 25.9 seconds on a single stage while managing missing pacenote data alongside earlier puncture damage. When interpreting rally splits and driver performance, such sudden drops in pace frequently reflect a breakdown in operational information rather than an underlying disparity in driver skill.
Official reference: FIA World Rally Championship regulations.
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