Motocross's European Origins
Motocross developed in Europe in the early-to-mid twentieth century, evolving out of off-road motorcycle trials and endurance events into a dedicated discipline focused on closed-circuit racing over natural terrain rather than long-distance off-road travel. The very first race of this kind ran in 1924 at Camberley Heath in Surrey, England — organizers scored it purely on speed rather than the observed-sections judging of a traditional trial, so the British sanctioning body called it a "scramble" instead. The French would soon rename the concept "motocross."
The format that emerged — timed motos over a purpose-marked outdoor circuit with jumps, ruts and natural elevation change — became the template that outdoor motocross still broadly follows today.
The Invention of Supercross
Supercross was created specifically to bring motocross-style racing into stadiums, making the sport accessible to urban audiences who could not easily reach the rural venues outdoor motocross traditionally used, while also creating a more compact, television-friendly event format. The first stadium event ran on 8 July 1972 at the Los Angeles Memorial Coliseum, drawing 29,290 fans to watch 16-year-old Marty Tripes win — billed as the "Super Bowl of Motocross," the event's name directly coined the term "Supercross."
That same year, the AMA also sanctioned its first Pro Motocross Championship, meaning both of America's defining motocross disciplines trace their formal origins to 1972.
The full timeline, year by year
Put the whole story together and it runs from a 1924 English farmland scramble to a 2023 championship unifying two disciplines, in five clear steps.
Motocross and Supercross's History, Year by Year
From an English farmland scramble in 1924 to a 2023 playoff crowning one champion across two disciplines, in five verified steps. Press play, or click any point.
How the Tracks Diverged
As supercross grew, its stadium-built tracks became increasingly distinct from outdoor motocross circuits — tighter, more technical, built from trucked-in dirt rather than natural terrain, and featuring rhythm sections and jump combinations engineered specifically for a compact indoor footprint. See our motocross glossary, including an interactive rhythm-section simulator, for exactly how riders choose a line through one.
This divergence in track design is what ultimately separated supercross from outdoor motocross as a genuinely distinct discipline, rather than simply the same sport moved indoors.
Two Parallel American Championships
In the United States, outdoor motocross and stadium supercross developed as separate championships with their own schedules, points systems and traditions, run alongside — rather than in place of — each other for decades.
Internationally, the FIM Motocross World Championship, commonly known as MXGP, developed as its own separate outdoor-focused world championship — inaugurated in 1957 — distinct from both American series and reflecting motocross's continued strength as an international, rather than purely American, discipline. See our AMA Motocross vs MXGP comparison for exactly how the two differ today.
SuperMotocross: Bringing Them Together
The SuperMotocross World Championship was created in 2023 to combine results from the separate American supercross and outdoor motocross championships into a unified end-of-season playoff, addressing decades during which the two disciplines' champions were never directly compared within a single points system. Its first-ever Final ran at the Los Angeles Memorial Coliseum — the same venue where supercross itself was born in 1972.
This represented a genuine structural innovation rather than a simple rebrand — for the first time, riders across both American formats were competing within a shared championship framework at the end of a season, even though the two disciplines remained otherwise separate. See our scoring explainer, including an interactive playoff points calculator, for exactly how that works.
Why This History Still Shapes the Sport
Understanding that supercross and outdoor motocross grew from a shared origin but diverged deliberately explains why the two feel so different to watch today despite using closely related machinery and often overlapping rider rosters.
It also explains why a fan needs to track multiple separate championships — American supercross, American outdoor motocross, the SuperMotocross playoff, and internationally MXGP — rather than assuming a single unified world championship governs the whole sport the way it does in some other disciplines.
Frequently asked questions
Did supercross come from motocross or the other way around?
Supercross was created from motocross, invented specifically to bring the sport into stadiums for urban audiences who could not easily reach traditional outdoor motocross venues.
When was supercross invented?
The first stadium event ran on 8 July 1972 at the Los Angeles Memorial Coliseum, with 16-year-old Marty Tripes winning in front of 29,290 fans — the 'Super Bowl of Motocross' branding that coined the term 'Supercross.'
Are outdoor motocross and supercross the same championship?
No. In the United States they developed as separate championships with their own schedules and points systems, run alongside each other, before the SuperMotocross playoff was created in 2023 to combine their results at season's end.
What is MXGP?
The FIM Motocross World Championship, inaugurated in 1957, an international outdoor-focused world championship distinct from the American supercross and outdoor motocross championships.
Why are supercross and outdoor motocross tracks so different?
Supercross tracks are built from trucked-in dirt inside stadiums, tighter and more technical by necessity, while outdoor motocross uses natural terrain over a much larger, unconfined circuit.
What is the SuperMotocross World Championship?
An end-of-season playoff series created in 2023, combining results from the separate American supercross and outdoor motocross championships into a single points system, created to directly compare champions across both formats for the first time.
Where did motocross originate?
In Europe — the first race of its kind ran in 1924 at Camberley Heath, Surrey, England, scored purely on speed rather than the observed-sections judging of a traditional trials event, which is why it was called a 'scramble' before the French renamed it 'motocross.'
When was the AMA Pro Motocross Championship founded?
1972, the same year as the first stadium supercross event, making that year the formal origin point for both of America's defining motocross disciplines.
Why is the SuperMotocross Final held at the Los Angeles Memorial Coliseum?
It's the same venue where the first-ever supercross event ran in 1972, giving the championship's unifying Final a direct symbolic connection to where the American discipline began.
How old is the FIM Motocross World Championship?
It was inaugurated in 1957 using a 500cc formula, five years after the FIM had established a European Championship in 1952 — making MXGP one of the older international motorcycle racing championships.
Who won the first stadium supercross event?
16-year-old Marty Tripes, at the Los Angeles Memorial Coliseum on 8 July 1972, in front of 29,290 fans.
Why was the original 1924 event called a 'scramble' instead of a race?
Britain's ACU sanctioning body ruled it couldn't be called a trials event because it had no observed sections and was timed purely on speed, so organizers called it a 'scramble' — a term the French later turned into 'motocross.'
Sources
Maya grew up watching rally stages and motocross before following both sports closely as an adult, and covers the off-road side of motorsport for CNMOTOS — from World Rally Championship gravel stages to Supercross stadiums and grassroots karting.
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