As his end approached, Lord Norbury sent his butler to deliver a message to another elderly lord who was also on his deathbed. "James," he said, "present my compliments to Lord Erne, and tell him it will be a dead heat between us!"
Norbury, John Toler, First Earl (1745-1831) Irish lawyer, chief justice of the Irish Court of Common Pleas (1800-27) noted for his support of the union of England and Ireland and of the Protestant ascendancy; and for his sarcasm and humour on the bench.
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dead heat
1. Sports. A race in which two or more contestants compete evenly or finish at the same time.
2. A political campaign or other contest that is so close that it is impossible to predict the winner.
Source: The American Heritage® Dictionary of the English Language, Fourth Edition
In a dead heat the the competitors are so equally matched that neither can win - the result is a tie, or a draw.
For example, The two companies are in a dead heat to get a new personal computer on the market.
This term comes from 18th-century British horse racing and is still part of racing terminology. It later was transferred to other kinds of competition.
Source: The American Heritage® Dictionary of Idioms by Christine Ammer.