1.   The race was Marred by a horrific accident involving Niki Lauda.

2.   The race was marred by the death of Cherrykino.

3.   Previous presidential races have been marred by violence and widespread cheating.

4.   The race was marred by a four-car crash on the final lap, which Warden almost ran into on the victory lap.

5.   The race was marred by a spectacular crash, although no driver was seriously injured.

6.   The race was marred by an accident that forced veterinarians to destroy Prince of Thieves.

7.   But the race was marred by seven crashes in the second leg of the two-leg event, including a fatal accident involving Tokyo-born Katsuhiro Tottori.

8.   But the race was marred by seven crashes in the second leg of the two-leg event, including a fatal accident involving Tokyo-born Katsuhiro Tottiori.

9.   During its last two years, the Aspen races were marred by controversy over the downhill event.

10.   Recent season-ending races have been marred by rough-and-tumble tactics.