headway to chase leader 7f out, led over 2f out, soon well clear, unchald
behind, headway over 4f out, stayed on, never able to challenge
prominent, ridden and outpaced over 3f out, never dangerous afterwards
led until over 2f out, soon hard ridden and weakened
prominent, pushed along 4f out, soon lost touch, tailed off
chased leaders until halfway, soon well behind, tailed off