Complex sentence: Ridgeon competed in the 110m hurdles, winning the European junior championship in 1985, ahead of runner up Colin Jackson, finished second to Jackson in the 1986 World junior championship and secured a silver medal in the event at the 1987 World Athletics Championships with Jackson third.
Split into simpler sentences: Ridgeon competed in the 110m hurdles, winning the European junior championship in 1985, ahead of runner up Colin Jackson. He finished second to Jackson in the 1986 World junior championship and secured a silver medal in the event at the 1987 World Athletics Championships, with Jackson third.