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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11In stage rallying, the co-driver is the crew’s navigator, timekeeper, note reader and operations lead. The driver controls the car, while the co-driver turns reconnaissance observations into a shared pace-note system, delivers those calls at the right moment, and keeps the crew on schedule between stages. The two jobs are different, but the performance is a joint process: the driver acts on information that the co-driver has prepared, checked and communicated under pressure.
What a rally co-driver actually does
A co-driver’s work has three distinct phases: preparation before competition, information delivery during a timed stage, and navigation and administration on the road sections between stages. Calling corners is only the most visible part.
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Before the stage
- Attend reconnaissance (recce) and create or revise the crew’s pace notes.
- Study the event regulations, route book, time controls and schedule.
- Prepare note books, timing equipment, tripmeter, intercom, reading light and paperwork.
- Coordinate practical details with service personnel and the wider team.
During the timed stage
- Read the notes in sequence and at a cadence the driver can use.
- Warn about corners, crests, jumps, surface changes, junctions and other hazards.
- Track the car’s position in the notes even when the road looks different from recce because of weather, dust or damage.
- Keep communication concise so the driver can concentrate on braking, steering, throttle and grip.
Between stages
- Read the road book and direct the crew over public-road sections.
- Monitor target arrival times and present the timecard at controls.
- Operate or check the stopwatch and tripmeter, record official information and communicate with officials or service.
Former world champion Petter Solberg described the co-driver as “the most important thing inside the car together with the driver.” That is not a claim that the co-driver drives the car; it reflects how much of the driver’s usable forward information comes from the other seat.
How pace notes work
Pace notes are a compact description of what the road does and how quickly the crew expects to approach it. A call can combine corner direction, severity, distance, braking advice, a crest or jump, a surface change and a hazard. The driver hears the call before the feature arrives and uses it to plan an action that may begin before the corner is visible.
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There is no universal vocabulary
Crews develop a shared shorthand. One pair may use numbers for corner severity, another may use descriptive words, and many combine a severity scale with modifiers such as “tightens,” “opens,” “over crest” or “do not cut.” The meaning matters only when both people attach the same meaning to the word, number, punctuation and delivery style.
Do not assume that a “3” or “6” has the same severity in every car. A crew must agree what its scale means, how distances are measured, whether a call describes entry or exit speed, and how hazards are prioritized. Notes also reflect the car, tires, driver preference and event conditions.
What a call communicates
- Direction and severity: for example, a left or right corner classified on the crew’s own scale.
- Distance: how far until the next feature, using the crew’s agreed units and estimating method.
- Shape: whether a corner tightens, opens, double-apexes or links directly into the next turn.
- Road geometry: crests, dips, jumps, cambers, bridges, junctions and narrow sections.
- Surface and grip: tarmac, gravel, mud, standing water, loose stones or a change in friction.
- Risk information: rocks, posts, trees, ditches, uncut corners or areas where the car should not run wide.
- Action timing: braking points, gear changes or whether the next instruction follows immediately.
Solberg’s explanation captures the purpose: pace notes explain “how fast you can go through the corners, braking points and dangerous places.” They are not a guarantee of grip or a substitute for the driver’s judgment. The driver still reads the car and adapts to conditions.
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Rallies begin with reconnaissance at limited speed. The crew drives the competition route without making the timed run, observes the road and records information for later use. Event regulations determine how many passes are allowed, what speed limits apply and whether supplied route notes are used, so the current sporting regulations always take priority.
The first recce pass: build the sequence
On an initial pass, the crew establishes the order of features. The driver describes what the road does and how it feels; the co-driver writes a compact sequence that can be checked later. They identify every corner, major crest, junction, surface transition and obvious hazard rather than trying to perfect wording immediately.
The later pass: test and refine
On subsequent passes, the crew checks distances, links corners, confirms whether a bend tightens or opens and adds details that affect speed or line choice. The driver may request a different emphasis—for example, a warning earlier before a blind crest—while the co-driver verifies that the note can be read without ambiguity. If the road cannot be seen clearly because of a crest or vegetation, that uncertainty is itself useful information.
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How notes are recorded
A pace-note pad or notebook normally uses short lines, abbreviations, arrows, spacing and symbols rather than complete sentences. The layout must be readable in a moving car, often in poor light and vibration. A note that is technically accurate but visually crowded can fail when the co-driver has only a fraction of a second to find the next line.
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Pace notes versus route notes
Route notes describe where the route goes: junctions, roads, distances and navigation points. They can be supplied by an organizer or a specialist note provider. Pace notes describe how the crew intends to drive the road, including corner severity, braking, hazards and the sequence in which the driver should process those instructions.
Motorsport UK makes this distinction in its rally guidance. A route book can get the crew to the start of a stage; pace notes are the driver-specific performance language used inside the stage. Some events supply route information or restrict recce, but the crew still has to understand the event’s approved note system and any limits on changing it.
What happens when the co-driver calls a stage
At the start line, the co-driver is not simply reading a script from top to bottom. The co-driver is tracking the car’s exact position, anticipating the next instruction and managing the timing of each call while listening to the driver and the car.
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Timing the delivery
A call must arrive early enough for the driver to act but not so early that it is forgotten among several later instructions. The correct distance depends on speed, corner severity, visibility, surface and the crew’s established cadence. A fast, severe corner may need an earlier warning than a slow, open bend. There is no single delivery distance that applies to every crew or stage.
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Keeping the sequence intact
Calls are normally delivered in a consistent order, such as the next corner, its severity, the distance to the following feature and any modifier. Consistency lets the driver recognize the important word without decoding a new sentence each time. If a note is missed, the co-driver should use the crew’s agreed recovery phrase or skip forward to a known reference rather than create a long explanation while the car is moving.
Adapting to changing conditions
Pace notes describe the road observed during recce, not a frozen promise about grip. Rain, ice, dust, mud, loose gravel, a damaged surface or a changed line can make a familiar corner behave differently. The driver remains responsible for judging available grip and car balance; the co-driver’s job is to preserve the route information and highlight known hazards. Short, agreed updates are safer than improvising a new vocabulary at speed.
Who keeps time in a rally car?
The co-driver manages the crew’s schedule and official timing on road sections. The car must reach each time control within its target window, neither early nor late, according to the event’s regulations. The co-driver monitors the clock, calculates or checks the target arrival, presents the timecard to officials and records the result.
World Rally Championship timing is described in its official explainer as being recorded to one-tenth of a second. That precision applies to the event’s timing system; it does not mean the co-driver can ignore the larger schedule. A missed control, an incorrect timecard entry or an early arrival can produce a sporting penalty even when the car is mechanically perfect.
The road-section workflow
- Leave the control with the correct target. Confirm the next control, its due time and any instructions in the road book.
- Navigate the public-road route. Read junctions and route references while the driver obeys road laws and event restrictions.
- Check progress. Use the official clock, stopwatch and tripmeter as appropriate to monitor distance and available time.
- Prepare before arrival. Have the timecard and required information ready before reaching the control zone.
- Record and communicate. Check the official entry, retain the crew’s record and report relevant information to service or team personnel.
RallyGuide’s co-driving outline lists navigation, timing, stopwatch and tripmeter operation, and road-book reading as core tasks. The role is therefore part navigation, part scheduling and part records management.
Driver and co-driver responsibilities compared
| Responsibility axis | Driver | Co-driver |
|---|---|---|
| Primary information | Grip, balance, braking, steering response and what the car communicates | Route sequence, pace notes, hazards, timing and official instructions |
| Moment of action | Controls steering, braking, throttle and gear selection during the stage | Prepares notes before the stage and delivers information during it; navigates and keeps time between stages |
| Accuracy burden | Precise car control and adaptation to changing grip | Accurate notes, cadence, time calculations, timecards and paperwork |
| Team interface | Reports how the car behaves and what setup changes are needed | Connects the crew with officials, controls, service planning, records and contingency communication |
The division is practical rather than absolute. Both people must understand the route, the car’s limits and the event rules, but each has a different primary decision at the instant of action.
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Team operations beyond the cockpit
The co-driver’s checklist begins before the first recce pass. Preparation can include reading supplementary regulations, confirming control procedures, organizing note books, checking intercoms and reading lights, preparing a tripmeter and ensuring that the correct route documentation is in the car. During the event, the co-driver relays useful information to service personnel, records official notices and helps the crew respond to delays, damage or a change in schedule.
A specialist co-driving curriculum commonly covers time controls, timecards, pace-note phrasing and timing, reconnaissance, team operations, tripmeters, intercoms and reading lights. These are not optional accessories to note calling: a failure in any one of them can end a rally through a missed control, unreadable notes or a communication breakdown.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Safety, officials and the limits of the role
The co-driver is not an independent safety controller who can make the stage safe by warning about every hazard. Event organizers, stage commanders, marshals and timing teams manage the official safety system. The FIA’s 2026 Rally Safety Guidelines emphasize accurate timing-equipment operation and coordination among those officials. The crew’s timing discipline is one part of that broader system.
Inside the car, the co-driver should identify hazards observed during recce and use the agreed call structure. If an emergency occurs, the crew follows the event’s current regulations and safety procedures rather than relying on an improvised phrase. Never generalize a procedure from one rally to another: control layouts, reconnaissance limits, time penalties and communications requirements vary by championship and event.
Common failure modes and practical fixes
The driver receives a call too late
Move the call earlier only after discussing the change and testing it at a controlled pace. The problem may be a distance convention, an unexpectedly high approach speed or a note that hides the key warning after too many modifiers.
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The notes are accurate but hard to read
Rewrite crowded lines, increase spacing and standardize symbols. A co-driver should be able to find the next instruction without searching across a page while the car is accelerating or braking.
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The crew disagrees about a number or word
Stop and define the term during recce or service. Record the meaning in the crew’s shorthand and use it consistently. Do not assume a number scale used by another crew has the same meaning.
Conditions no longer match recce
The driver reduces speed or changes line according to actual grip. The co-driver keeps the sequence and gives the known hazard information, adding only concise, agreed updates. Pace notes inform the decision; they do not override what the car is doing.
A time-control calculation looks wrong
Recheck the control number, due time, clock reference, timecard entry and route distance. If the discrepancy remains, ask an official before entering the control rather than guessing. Keep the crew’s records so an error can be identified later.
What a new co-driver should practice
- Read a road book aloud while following a route on a map or approved training loop.
- Develop a small, unambiguous shorthand with the driver instead of copying another crew’s vocabulary.
- Practice writing and finding notes quickly under vibration, using the same page layout intended for competition.
- Use a stopwatch and tripmeter to calculate target times and distances, then check the arithmetic independently.
- Learn the event’s time-control, timecard, recce and safety rules before attending the rally.
- Practice recovery phrases for a missed note, wrong page or unexpected interruption.
Motorsport UK reported 6,400 licensed rally drivers in its 2025 starter pack, illustrating the size of the participant base; licensing, training and event requirements still depend on the relevant national authority and competition. A clinic or co-driver course can teach procedure, but the crew must apply the current regulations for its specific event.
Bottom line
Rally co-driving works because two people share one forward plan. During recce they convert the road into a crew-specific language; during the stage the co-driver delivers that language with disciplined timing; on road sections the co-driver navigates, keeps the schedule and manages official records. The driver remains responsible for controlling the car and adapting to grip, while the co-driver makes the route, timing and team information usable at speed. There is no magic universal code—only a tested system that both crew members understand exactly.
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