← back to explore

Documented path

Slobodan Kačar

Athletes · Other · milestone at age 22 ·Field-leading
Selected age-relative milestone · age 22
Won Olympic gold medal in light heavyweight boxing at the 1980 Moscow Olympics at age 22, also winning bronze at the 1978 World Amateur Boxing Championships at age 20.

Born in Jajce, Bosnia to a farming family that moved to Novi Sad when he was a teenager. Inspired by Muhammad Ali and Yugoslav boxer Mate Parlov, Kačar and his older brother Tadija started boxing at a club in Novi Sad. He compiled a reported amateur record of 241-9, winning bronze at the 1978 World Championships and gold at the 1979 Mediterranean Games before his Olympic triumph in 1980.

Starting point

Born in 1957 in Jajce, Bosnia (then Yugoslavia) to a farming family; parents worked abroad in Germany while children were raised by grandparents, later moving to Novi Sad, Serbia.

Current position (2025)

Retired professional boxer; former IBF Light Heavyweight world champion (1985-1986); served as president of the Boxing Association of Serbia; lives in Serbia.

Where the conditions came from

Three sources, read side by side

Each is placed on a −1 to 3 scale from documented evidence, and the three are never added together. A combined total would rank Slobodan Kačar against other people. Held apart, they explain why this path ran differently from another one—which is the only comparison this project supports.

The marble itself

What they brought

+2Tailwind

What capability, drive, or early skill is documented in the person rather than their surroundings?

Compiled a reported amateur record of 241-9. Won Olympic gold at 22 and World Championship bronze at 20. Exceptional boxing talent with an outstanding amateur record, inspired by Muhammad Ali and Yugoslav boxer Mate Parlov.

Where it was dropped

What they were handed

-1Active headwind

What money, family standing, network, or permission was already in place before the work began?

Born to a farming family in Jajce, Bosnia. Parents went abroad to work (pečalba) when Slobodan was 4, leaving him and his brothers to be raised by grandparents. Active disadvantage of rural poverty and parental absence.

The shape of the track

What surrounded them

+2Tailwind

What place, timing, institution, or peer group made the next step available?

Older brother Tadija Kačar was an Olympic silver medalist boxer (1976) who started boxing together with Slobodan in 1972. BK Vojvodina in Novi Sad provided club training. Yugoslav amateur boxing system with strong competitive pipeline. Sibling peer relationship was a key ecosystem advantage.

A −1 is a documented headwind, not a missing value; a 0 means the sources record nothing notable either way. Annotation confidence: High. These are analyst readings of what the sources record, not measurements of merit, talent, or effort. The twenty-two scored dimensions remain available inside the deeper research detail.

What moved through the conditions

Perseverance and luck stay visible—not scored.

Documented perseveranceBK Vojvodina in Novi Sad provided club training.

This records repeated behaviour or recovery described by sources; it is not a grit or merit score.

Luck and unobserved varianceNo discrete luck event is documented in the reviewed biographical summaries.

A successful-only archive cannot recover all encounters, avoided setbacks, or alternative outcomes.

Open the legacy 22-field research annotation
How this path compounded
01 Starting advantages

9/24 starting-position score

Strongest documented signals: Exceptional peer / cofounder, Parent / family domain, Elite institution pipeline.

Describes the starting position, not what the person later made of it.

Cohort percentile: 61
02 Built or converted leverage

11/25 multiplying-capacity score

Strongest observed levers: Started serious reps before 20, Prior reps, Scarce skill depth.

Measures what was present, not whether it was inherited, earned, self-built, external, or mixed.

Cohort percentile: 32
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 22
04 Observed career standing

T2 · Field-leading

Dominant figure at the top of a field. The tier summarizes documented career recognition through the data cutoff—not Slobodan Kačar's worth or future potential.

Question four · where did the leverage come from?

Slobodan Kačar'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 (1/2)Dedicated mentor / coach (1/2)Elite institution pipeline (1/2)
Prior reps2/3
Advantage-enabledmedium confidence

One or more documented starting advantages plausibly enabled this lever.

Parent / family domain (1/2)Dedicated mentor / coach (1/2)Elite institution pipeline (1/2)
Scarce skill depth2/3
Advantage-enabledmedium confidence

One or more documented starting advantages plausibly enabled this lever.

Parent / family domain (1/2)Dedicated mentor / coach (1/2)Elite institution pipeline (1/2)
Concentration intensity2/3
Advantage-enabledmedium confidence

One or more documented starting advantages plausibly enabled this lever.

Dedicated mentor / coach (1/2)Adversity / constraint catalyst (1/2)
Complementary team1/2
Advantage-enabledmedium confidence

One or more documented starting advantages plausibly enabled this lever.

Exceptional peer / cofounder (2/2)Elite institution pipeline (1/2)
Domain proximity1/2
Advantage-enabledmedium confidence

One or more documented starting advantages plausibly enabled this lever.

Direct domain exposure (1/2)Parent / family domain (1/2)Frontier geography (1/2)Elite institution pipeline (1/2)
Elite ecosystem network1/3
Advantage-enabledmedium confidence

One or more documented starting advantages plausibly enabled this lever.

Parent / family domain (1/2)Elite institution pipeline (1/2)Frontier geography (1/2)Exceptional peer / cofounder (2/2)
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)

This is a bounded inference from the current annotations—not a claim about private effort, merit, or the percentage of Slobodan Kačar's outcome attributable to any origin.

Luck is not a leftover score.

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, Slobodan Kačar's starting-advantage total is at the 61th percentile. Separately, their built or converted leverage total is at the 32th percentile. Other T2 profiles average 7.8 / 24 starting advantage and 12.4 / 25 leverage. Similar scores appear in other tiers, so these figures describe positioning—not a cause.
Trajectory
  1. 1978 · age 20
    Won bronze medal at the World Amateur Boxing Championships in Belgrade.
  2. 1979 · age 22
    Won gold medal at the Mediterranean Games
    Split in the light heavyweight division.
  3. 1980 · age 22
    Won Olympic gold medal in light heavyweight boxing
    The Moscow Olympics.
  4. 1983 · age 25
    Turned professional, beginning his pro boxing career.
  5. 1985 · age 27
    Won the IBF Light Heavyweight world title by defeating Eddie Mustafa Muhammad.
  6. 1986 · age 28
    Lost the IBF title to Bobby Czyz via 5th-round TKO.
  7. 1987 · age 29
    Retired from professional boxing
    A record of 22-2.
Primary leverage engine
Early specialization
Early specialization / prior reps
Secondary engine
Physical talent
Built/converted leverage
11 / 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.

Started serious reps before 20
1/1
Prior reps
2/3
Scarce skill depth
2/3
Native distribution
0/3
Elite ecosystem network
1/3
Complementary team
1/2
Structural wave / timing
1/3
Concentration intensity
2/3
Capital safety
0/2
Domain proximity
1/2
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 financial platform
0/2
Parent / family domain
1/2
Inherited audience / network
0/2
Elite institution pipeline
1/2
Frontier geography
1/2
Rare early tools
0/2
Dedicated mentor / coach
1/2
Exceptional peer / cofounder
2/2
Early online platform
0/2
Direct domain exposure
1/2
Prodigy / innate ability
1/2
Adversity / constraint catalyst
1/2

Family context

Born to a farming family in rural Bosnia; parents worked abroad in Germany while children were raised by grandparents. Family moved to Novi Sad, Serbia in the early 1970s. His older brother Tadija was also a boxer who won Olympic silver in 1976.

Parent / family domain

No family boxing background documented; however, his older brother Tadija Kačar was an accomplished boxer (Olympic silver 1976) who trained at the same club, creating a sibling-driven training environment.

Archetype & tags
High-trust peer teamsibling boxerboxing clubYugoslav boxing pipelineearly specialization
Evidence summary

Kačar grew up in a rural Bosnian family with modest means; his parents worked abroad while he was raised by grandparents. He and his older brother Tadija, an Olympic silver medalist boxer, started boxing together at a club in Novi Sad. The Yugoslav amateur boxing system provided a strong competitive pipeline. Kačar compiled an exceptional amateur record of 241-9, winning World Championship bronze at 20 and Olympic gold at 22. The sibling boxing partnership and the Yugoslav boxing ecosystem were key early advantages.

advantage confidence: Medium · source count: 4 · audit: partial_source_verification · status: subagent_researched_beta

Sources
Related — same primary engine
Lewis Hamilton
Motorsport · age 10
Won the British Kart Championship at 10, was signed to the McLaren-Mercedes Young Driver Programme at 13, won F1 World Championship at 23 in 2008, and won multiple Grands Prix by 26.
Leverage 24/25T1
Mathieu van der Poel
Cycling · age 17
Won junior world, European, and national cyclo-cross titles at 17 (2012-13); became the youngest ever elite cyclo-cross world champion at age 20 (2015); by 26, won the Tour of Flanders twice (2020, 2022), Amstel Gold Race (2019), and a Tour de France stage (2021).
Leverage 21/25T1
Michael Jackson
Music · age 24
Released 'Thriller' in November 1982 at age 24, which became the best-selling album of all time. Earlier milestones include four consecutive No. 1 Billboard Hot 100 singles with the Jackson 5 starting in 1969 at age 11, and the breakthrough solo album 'Off the Wall' in 1979 at age 21.
Leverage 20/25T1
Wesley Sneijder
Soccer · age 19
Won the Eredivisie with Ajax in 2003-04 (age 19-20) and the Johan Cruyff Trophy for best young player in the Netherlands; by 26, he had won La Liga with Real Madrid (2007-08) and the Champions League, Serie A, and Coppa Italia treble with Inter Milan (2009-10).
Leverage 20/25T2
Kornelia Ender
Other Sports · age 13
Won three Olympic silver medals at the 1972 Munich Olympics at age 13, then four gold medals at the 1976 Montreal Olympics at age 17 while setting world records in each event, becoming the first woman to win four swimming golds at a single Olympics.
Leverage 20/25T2
Deng Yaping
Tennis · age 16
By age 26, Deng had won four Olympic gold medals (1992 and 1996, singles and doubles), eighteen world championship titles, and held the world #1 ranking for eight consecutive years, becoming the greatest female table tennis player of her era.
Leverage 20/25T1