Every season, cycling anoints its prodigies. Early national team selections. Young riders are identified, labelled, and fast-tracked long before their physical, technical, and psychological development has had time to settle. The assumption is rarely questioned: win early, and greatness will follow. Yet endurance cycling is often a late-peaking sport. Many riders who dominate youth categories never reach WorldTour level. Others — overlooked, cut, or simply slow to mature — resurface years later and end up riding at the very top.
Every year, thousands of young athletes are tagged as “talents”. They win junior races, enter elite programmes, and attract attention, investment, and expectation. At twelve or fourteen, they already look like finished products. Performance research helps explain why: among children and adolescents, an early start and intensive, sport-specific practice are reliably linked to faster short-term gains. On this basis, academies and federations around the world have converged on the same logic — select early, specialise early, accelerate early.
But do early winners really become the best riders later on? And are the traits that deliver youth success the same ones that define peak performance in adulthood?
These questions are now addressed systematically in a Science paper (Arne Güllich et al., Recent discoveries on the acquisition of the highest levels of human performance), which synthesises the most comprehensive evidence to date on how excellence develops. The authors analysed 19 datasets covering 34,839 adult international-level top performers across domains: Olympic champions, world-class musicians, elite chess players, and Nobel Prize winners. In sport alone, over 50,000 athletes were examined, including 3,375 Olympic medallists, combining prospective studies (following juniors over time) and retrospective analyses (reconstructing the early careers of senior champions).
The first result is striking. Around 90% of athletes who reach the highest levels of international sport were not standout performers in youth categories. More specifically, 82% of athletes who competed internationally as juniors do not reach the same level as seniors, while 72% of international-level senior athletes had not competed internationally as juniors.
Early success is not meaningless — elite youth athletes are still far more likely than the general population to reach the top—but they represent only a small fraction of adult champions. The reassuring belief that those who dominate at twelve are “destined” to dominate again at 25 simply does not survive contact with the data.
A second finding concerns development trajectories. Future Olympic and world champions often perform worse than their peers early on, but they keep improving for longer. They overtake later and peak higher. Many early stars, by contrast, stop progressing sooner.
This undermines another powerful myth: “the earlier you start, the better”. Advancing specialisation and increasing sport-specific practice almost always accelerate early performance, but they say surprisingly little about how high an athlete will rise at peak career. When we look at world-class performers, the pattern is often the opposite: slower early progress paired with later-maturing careers.
Our evaluations are further distorted by a factor that is routinely underestimated: relative age. Youth sport is organised by birth year, which means comparing athletes with developmental differences that can approach a full year, an enormous gap at twelve or thirteen. Those born in the first months of the year tend to be more physically and cognitively mature, are selected more often, trained more intensively, and exposed more visibly to competition. This phenomenon—the so-called January Effect — has been documented for decades, from Canadian ice hockey to large meta-analyses in football, athletics, and Olympic sports. Over time, however, this advantage fades and can even reverse.
The result is a systematic confusion between biological precocity and talent, between early acceleration and long-term potential. The data show these are different things. And in trying to identify champions too early, we mostly succeed at losing the real ones.
So what actually predicts excellence in adulthood — understood not as age, but as peak performance in open senior categories, often reached in the late twenties or thirties?
Again, the answer runs counter to intuition. Compared with their peers, the best juniors tend to have started earlier, entered selection programmes sooner, and accumulated more sport-specific practice, often at the expense of other activities. Elite adult performers show the opposite profile: later specialisation, more diverse early experiences, and a more gradual progression. On average, Olympic champions practised at least two other sports for around nine years during childhood and adolescence. This pattern appears across all Olympic disciplines analysed and extends beyond sport to music, chess, and scientific research. The key point — and this is where the Science study avoids anecdote — is not the exceptional individual, but the statistical regularity that emerges from very large datasets. Being a multi-disciplinarian does not slow excellence. It often makes it more robust, adaptable, and durable.
Well-known cases make this visible without explaining it on their own. Mathieu van der Poel combines road racing, cyclocross, and mountain biking. Jannik Sinner transferred skills built through alpine skiing into tennis. In both cases, the point is not “doing everything”, but accumulating transferable skills that compound over time.
The same study documents a wide range of trajectories. Alongside cases of extreme precocity — such as Tiger Woods or Simone Biles — who confirmed as adults what they showed as children, we find opposite paths. Michael Jordan did not dominate early; his greatness emerged through a long, nonlinear process. Outside sport, Wolfgang Amadeus Mozartembodies early genius, while Ludwig van Beethoven represents a slower, less obvious trajectory that nonetheless reached extraordinary heights.
But the names are not the point. The strength of the evidence lies in showing—across tens of thousands of cases—that excellence rarely results from an early explosion. More often, it grows out of conditions that allow development over time.
For endurance sports like cycling, the implications are clear. In disciplines where peak performance often arrives late, narrowing pathways in the mid-teens systematically eliminates future elite performers before their potential can emerge. If adult excellence is not the continuation of early excellence, then systems designed to identify “the best” as early as possible are optimising the wrong variable. They reward speed of development, not resilience, adaptability, or long-term performance ceiling.
The data does not argue for doing less development, but for doing it differently: later selection, broader early experiences, and systems designed to keep athletes in the sport long enough for true excellence to surface. Preserving pathways matters more than closing them. Exploration matters more than premature commitment. Steady, durable progression matters more than early dominance.
Tomorrow’s Olympic champions are rarely today’s prodigies. More often, they are riders who were allowed to grow without excessive pressure, to explore, to make mistakes, and to build broad physical, technical, and mental foundations—while staying in the game long enough for their moment to arrive.
For parents of young athletes, the advice is to protect education, a variety of experiences, and the freedom to experiment without treating error as failure. Do not mistake a national title at twelve for a promise of future greatness. Support your children in staying in the sport long enough for their potential—if it exists—to emerge.
For coaches, clubs, and federations, the challenge is not only recognising a champion at twelve, but not burning them before they have time to become one.
Matteo Motterlini is a Professor of Logic and Scientific Method at San Raffaele University, Milan, and former Scientific Advisor to MilanLab (AC Milan).
