Conversation so far:
What is the foundations of Tom Simpson?
In July, four months after leaving England, Tom Simpson rode his first race as a professional, the Tour de l'Ouest in west France.
Are there any other interesting aspects about Tom Simpson besides riding his first race as a professional, the Tour de l'Ouest in west France?
In 1963 Tom Simpson moved to Peugeot–BP–Englebert and participated in the Bordeaux–Paris.
Did Tom Simpson win the Bordeaux-Paris?
Tom Simpson won the Bordeaux-Paris race.

Question: Who did he train with?
Self-contained rewrite: Who did Tom Simpson train with?