The Yeung's Index shows each horse's winning chance, based on
its past records, runnings and final positions. The higher the better,
the index is a quick and useful reference. In fact, taking Yeung's
Index as betting guide has yielded a positive return for 10 years,
Take the 2001/02 season as example, the annual yield of Yeung's
index is 184%. A wise investment, you may call it.
The Flemming Index, another useful index, computes the expected
return of betting a horse under different odds ranges.