Complex sentence: Silvio Guerra is the best ecuadorian athlete, an olimpic participant, and winner of many tournaments, he deserves to be in wikipedia, he holds the best time in marathon race of any ecuadorian, since 1997.
Split into simpler sentences: Silvio Guerra is the best Ecuadorian athlete, an olympic participant, and winner of many tournaments. He holds the best time in marathon race of any ecuadorian, since 1997.