01 Starting advantages
8/24 starting-position score
Strongest documented signals: Parent / family domain, Direct domain exposure, Frontier geography.
Describes the starting position, not what the person later made of it.
Cohort percentile: 51
Stefan Johansson
Athletes · Motorsport · milestone at age 17 ·T3 Domain-recognized
Milestone (age 17)
Won the Swedish karting championship in 1973 at age 17; won the British Formula Three championship in 1980 at age 24 and made his Formula One debut the same year.
Born in Växjö, Sweden, Johansson started karting at age 8 with help from his father Roland, a weekend saloon car racer who ran a body repair shop. He won the Swedish karting championship at 17, progressed through Formula Ford, and won the British F3 championship at 24 before entering Formula One.
Starting point
Born in Växjö, Sweden; father ran a body repair shop and raced saloon cars on weekends, providing early immersion in motorsport.
Current position (2025)
Former F1 and CART driver; won 24 Hours of Le Mans in 1997; now a motorsport executive running Johansson Motorsports in Indianapolis.
How this path compounded
02 Built or converted leverage
9/25 multiplying-capacity score
Strongest observed levers:Domain proximity, Started serious reps before 20, Prior reps.
Measures what was present, not whether it was inherited, earned, self-built, external, or mixed.
Cohort percentile: 12
03 Compounding trajectory
7 documented steps
The timeline below shows the sequence of work and transitions around the selected early milestone. It is evidence of a path, not proof that every step was necessary.
Milestone at age 17
04 Observed career standing
T3 · Domain-recognized
Notable and widely recognized within the domain. The tier summarizes documented career recognition through the data cutoff—not Stefan Johansson's worth or future potential.
Question four · where did the leverage come from?
Stefan Johansson's leverage provenance
Each non-zero lever gets a best-supported origin, evidence signals, and confidence. Unresolved is the honest default when the biography cannot distinguish self-built, advantage-enabled, earned, external, or mixed.
Started serious reps before 201/1
Advantage-enabledmedium confidence
One or more documented starting advantages plausibly enabled this lever.
Parent / family domain (2/2)Rare early tools (1/2)Dedicated mentor / coach (1/2)
Domain proximity2/2
Advantage-enabledmedium confidence
One or more documented starting advantages plausibly enabled this lever.
Direct domain exposure (2/2)Parent / family domain (2/2)Frontier geography (1/2)
Prior reps2/3
Advantage-enabledmedium confidence
One or more documented starting advantages plausibly enabled this lever.
Parent / family domain (2/2)Rare early tools (1/2)Dedicated mentor / coach (1/2)
Scarce skill depth1/3
Advantage-enabledmedium confidence
One or more documented starting advantages plausibly enabled this lever.
Parent / family domain (2/2)Rare early tools (1/2)Dedicated mentor / coach (1/2)
Elite ecosystem network1/3
Advantage-enabledmedium confidence
One or more documented starting advantages plausibly enabled this lever.
Parent / family domain (2/2)Frontier geography (1/2)
Structural wave / timing1/3
Externalmedium confidence
A structural wave is external to the person, even when their position improved access to it.
Frontier geography (1/2)
Concentration intensity1/3
Advantage-enabledmedium confidence
One or more documented starting advantages plausibly enabled this lever.
Dedicated mentor / coach (1/2)Adversity / constraint catalyst (1/2)
This is a bounded inference from the current annotations—not a claim about private effort, merit, or the percentage of Stefan Johansson's outcome attributable to any origin.
Structural luck, Encounter luck, Event luck, Outcome variance can change every arrow in the path. This successful-only dataset cannot observe the near-identical paths that did not break through, so luck stays visible and unscored.
Within Athletes, Stefan Johansson's starting-advantage total is at the 51th percentile. Separately, their built or converted leverage total is at the 12th percentile. Other T3 profiles average 7.0 / 24 starting advantage and 11.7 / 25 leverage. Similar scores appear in other tiers, so these figures describe positioning—not a cause.
Trajectory
- 1973 · age 17Won the Swedish karting championshipEstablishing himself as a rising talent in Scandinavian motorsport.
- 1977 · age 21Won the Swedish Formula Ford title.
- 1980 · age 24Won the British Formula Three championshipSix wins and made his Formula One debut with Shadow at the Argentine Grand Prix.
- 1985 · age 29Joined Ferrari mid-season, replacing René ArnouxAnd scored his maiden F1 podium in Canada.
- 1986 · age 30Achieved a career-best fifth place in the Formula One World Drivers' Championship with Ferrari.
- 1987 · age 31Moved to McLaren alongside Alain ProstFinishing sixth in the championship with five podiums.
- 1997 · age 41Won the 24 Hours of Le MansJoest Racing in a Porsche 911 GT1.
Primary leverage engine
Early specialization
Early specialization / prior reps
Secondary engine
Family-domain exposure
Built/converted leverage
9 / 25
evidence: Medium
Built or converted leverage
Multiplying capacity documented later in the path. Measures what was present, not whether it was inherited, earned, self-built, external, or mixed.
Starting-advantage scores (0–2 each)
Access or conditions documented near the beginning of the path. Zero means "no clear evidence in reviewed sources," not "advantage was absent."
Family context
Born in Växjö, Sweden. Father Roland Johansson ran a body repair shop and raced saloon cars on weekends (VW Beetle, Mini, ex-Alan Mann Escort). The family was not wealthy; Stefan later slept in his car and struggled to afford food while racing in England.
Parent / family domain
Father was a successful touring/saloon car racer who introduced Stefan to motorsport from childhood. Stefan grew up in racing paddocks and started driving karts at age 8 with his father's enthusiastic support.
Archetype & tags
Family-domain apprenticeshipfather racerkarting from age 8body repair shopSwedish racing traditionfinancial hardship
Evidence summary
Johansson grew up in Växjö with a father who raced saloon cars and ran a body repair shop, giving him early immersion in motorsport. He started karting at 8, won the Swedish championship at 17, and progressed through Formula Ford to win the British F3 title at 24. His father's racing connections and hands-on support were critical, but the family lacked financial resources—Stefan slept in his car and struggled to eat while racing in England. He made his F1 debut with Shadow in 1980.
advantage confidence: Medium · source count: 4 · audit: not_independently_audited · status: subagent_researched_beta
Sources
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