But PlayStation's hulls have recently been stretched from 105 to 120 feet to correct a tendency to nosedive, and the extra waterline length may prove unbeatable.

The power of incumbency proved unbeatable in mayor's races in Houston, Miami, Buffalo, Minneapolis.

They eventually reached that contract, but Sampson and Morris, as North and South, persevered to five clubs, which proved unbeatable.

After a slow auction, Levy was doubled in five clubs, which proved unbeatable.

The following year McLarens proved unbeatable, winning 11 of 11 races.

But Avarelli and Belladonna reached an unlikely contract of six hearts, and that proved unbeatable.

But, in competition events, it proved unbeatable.

This Nixon-Reagan coalition proved almost unbeatable.

Although known for its tricky handling, the 100 proved nearly unbeatable in local rallies and hillclimbs, a tribute to its robust construction.

Today, it is ranked as the fourth fastest roller coaster; however, over the past decade, it has proved unbeatable when it comes to acceleration.