Joaquim Agostinho started racing as an amateur at the age of 25 years in some Portuguese races, wearing some borrowed cycling wear lent by João Roque.
After winning some races, Agostinho signed a professional contract with Sporting Clube de Portugal.
Then, when racing with the Sporting Clube de Portugal cycling team in São Paulo, Agostinho – a rider "of average height but with the build of a rhinoceros", according to the historian Pierre Chany – left Jean de Gribaldy, a team manager and former cyclist, in awe of him.
They met in Brazil in 1968, when Agostinho won the Tour de São Paulo.
De Gribaldy was managing an amateur team in the race.
That year Agostinho rode the world professional road championship at Imola, while still an amateur, and came 16th after initiating the move which brought victory for the Italian, Vittorio Adorni.
De Gribaldy and Agostinho became lifelong friends.
De Gribaldy said in 1980:
"At the end of my life, if I had to recall a single place in the world, I wouldn't hesitate long.
I would choose the little Brazilian hotel,  insignificant, discreet, in Sao Paulo, where I had arranged to meet Joaquim.
It was in 1968.
I had noticed him two months earlier at Imola, at the world championship, but it was in Sao Paulo that I spoke to him for the first time.
I asked him simply: 'Do you want to come and race in France?'
He didn't know a word of French but in his smile I understood immediately what he was trying to answer.
What a long way we went together afterwards.
What memories we created together."

De Gribaldy asked him to join his Frimatic team in France, promising a ride in the 1969 Tour de France.
Agostinho was already 27, a late age to turn professional.
 Agostinho won two stages that year.
He also had one of the heavy falls that characterised his career, crashing on the cinder track at Divonne-les-Bains and being carried away with concussion, amnesia and cuts.
He restarted next morning and rode as far as Paris, finishing the race eighth.
He rode 13 Tours de France from 1969 to 1983, came third in 1978 and 1979 and won four stages.
He finished 12 times.

Agostinho stayed with de Gribaldy as his teams were successively sponsored by Frimatic, Hoover, and Van Cauter Magniflex.
In 1973 he left de Gribaldy to ride for Bic and then Teka before re-associating with de Gribaldy when he joined Flandria's French team in 1978.

Raphaël Géminiani said: 
"Joaquim Agostinho didn't know his own strength.
He was a ball of muscles of out-of-the-ordinary power.
He was built like a cast-iron founder.
Having come to cycling fairly late, he had trouble integrating with it.
It's a shame he didn't want to dedicate himself 100 per cent to being a professional cyclist.
Now and then he showed his very great physical powers, but no more often than that.
He didn't want to do more.
The peloton scared him, which is why he fell so often.
More than that, Tinho was never aggressive enough to impose himself totally.
He had a legendary kindness and his only ambition was to be good, gentle Tinho.
If he'd been ambitious, he would easily have written his name into the records of the Tour de France."


Pierre Martin said in International Cycle Sport: 
He was a man of strange contradictions.
Built like a sprinter, he was no good at sprinting.
He was one of the great climbers.
Eddy Merckx said in 1969, the year when he and Agostinho made their debuts in the Tour de France, that Agostinho was the rival who worried him most, indeed the only rival who had worried him at all."

Agostinho was Portuguese champion in six successive years, from 1968 to 1973.
He was a gifted climber and  a consistent leader in both in the Vuelta a España and the Tour de France where he was a winner at Alpe d'Huez.
Martin said:
"He loved the Tour de France.
There were few other races which he took seriously, indeed he raced relatively little during an average season – enough to pay for and maintain life's dream, but no more.
On the roads of the Tour, nobody ever knew when he would suddenly burst into action.
He might be quiet for days on end, when suddenly the racing fever
Joaquim Agostinho started racing as an amateur at the age of 25 years in some Portuguese races, wearing some borrowed cycling wear lent by João Roque. After winning some races, Agostinho signed a professional contract with Sporting Clube de Portugal. Then, when racing with the Sporting Clube de Portugal cycling team in São Paulo, Agostinho – a rider "of average height but with the build of a rhinoceros", according to the historian Pierre Chany – left Jean de Gribaldy, a team manager and former cyclist, in awe of him. They met in Brazil in 1968, when Agostinho won the Tour de São Paulo. De Gribaldy was managing an amateur team in the race. That year Agostinho rode the world professional road championship at Imola, while still an amateur, and came 16th after initiating the move which brought victory for the Italian, Vittorio Adorni. De Gribaldy and Agostinho became lifelong friends. De Gribaldy said in 1980:
"At the end of my life, if I had to recall a single place in the world, I wouldn't hesitate long. I would choose the little Brazilian hotel,  insignificant, discreet, in Sao Paulo, where I had arranged to meet Joaquim. It was in 1968. I had noticed him two months earlier at Imola, at the world championship, but it was in Sao Paulo that I spoke to him for the first time. I asked him simply: 'Do you want to come and race in France?' He didn't know a word of French but in his smile I understood immediately what he was trying to answer. What a long way we went together afterwards. What memories we created together."
De Gribaldy asked him to join his Frimatic team in France, promising a ride in the 1969 Tour de France. Agostinho was already 27, a late age to turn professional.  Agostinho won two stages that year. He also had one of the heavy falls that characterised his career, crashing on the cinder track at Divonne-les-Bains and being carried away with concussion, amnesia and cuts. He restarted next morning and rode as far as Paris, finishing the race eighth. He rode 13 Tours de France from 1969 to 1983, came third in 1978 and 1979 and won four stages. He finished 12 times.
Agostinho stayed with de Gribaldy as his teams were successively sponsored by Frimatic, Hoover, and Van Cauter Magniflex. In 1973 he left de Gribaldy to ride for Bic and then Teka before re-associating with de Gribaldy when he joined Flandria's French team in 1978.
Raphaël Géminiani said: 
"Joaquim Agostinho didn't know his own strength. He was a ball of muscles of out-of-the-ordinary power. He was built like a cast-iron founder. Having come to cycling fairly late, he had trouble integrating with it. It's a shame he didn't want to dedicate himself 100 per cent to being a professional cyclist. Now and then he showed his very great physical powers, but no more often than that. He didn't want to do more. The peloton scared him, which is why he fell so often. More than that, Tinho was never aggressive enough to impose himself totally. He had a legendary kindness and his only ambition was to be good, gentle Tinho. If he'd been ambitious, he would easily have written his name into the records of the Tour de France."

Pierre Martin said in International Cycle Sport: 
He was a man of strange contradictions. Built like a sprinter, he was no good at sprinting. He was one of the great climbers. Eddy Merckx said in 1969, the year when he and Agostinho made their debuts in the Tour de France, that Agostinho was the rival who worried him most, indeed the only rival who had worried him at all."
Agostinho was Portuguese champion in six successive years, from 1968 to 1973. He was a gifted climber and  a consistent leader in both in the Vuelta a España and the Tour de France where he was a winner at Alpe d'Huez. Martin said:
"He loved the Tour de France. There were few other races which he took seriously, indeed he raced relatively little during an average season – enough to pay for and maintain life's dream, but no more. On the roads of the Tour, nobody ever knew when he would suddenly burst into action. He might be quiet for days on end, when suddenly the racing fever
Joaquim Agostinho