Complex sentence: In the 1951 Kentucky Derby, Whitney's colt Counterpoint tired badly and finished 11th but came back to take second place in the Preakness and then gave Whitney his second win in the Belmont Stakes.
Split into simpler sentences: In the 1951 Kentucky Derby, Whitney's colt Counterpoint tired badly and finished 11th, but came back to take second place in the Preakness and. Counterpoint subsequently gave Whitney his second win in the Belmont Stakes.