But polling evidence from Scotland is that about a third of voters may split their votes between different parties.
The tournament, which takes place in the third week of May, has been held in the New York State town of the same name since 1979 with big names such as Annika Sorenstam, Patty Sheehan and Juli Inkster among the winners.
But, whereas only 18% of intending Labour voters say they may defect, fully a third of Tories say they may.
Daisy Benson, the Leader of the Liberal Democrat group on Reading Borough Council, laments the loss of a third of her councillors in May, and control of the council to Labour.
BBC: Ashdown says Lib Dems should 'take pounding and stand firm'
Meanwhile, the chief veterinary officer for Northern Ireland has said there was concern that a third flock of sheep may be infected by the foot-and-mouth virus.
So that is one line that they are definitely pursuing with the help of European agencies, but also I think that British authorities are concerned that there may be either second- or third-generation of homegrown support that may have assisted in this as well.
Market participants took that as a sign that a third round of quantitative easing may finally be arriving.
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But the regions, which account for more than a third of public spending, may yet complicate the picture.
The retailer is likely to shut a third of its stores and may renegotiate its licence with Omnimedia.
During a call with analysts, Chief Executive PaulCurlanderPaul Curlander said about one-third of the 375 jobs may be outsourced to low-cost regions.
Thatcherism was not a fully worked out theory when Mrs Thatcher entered office in 1979 (and critics of the Third Way may want to bear that in mind).
What that means is that the chance of a third round of quantitative easing from the Fed may be further off, market watchers have said.
FORBES: METALS OUTLOOK: Gold Could See Potential Bounce Next Week, But Market Watchers Cautious
Novartis is in final trials of a drug that may help the one-third of acute myeloid leukemia cases with a gene mutation that turns on cell-growth signals.
As much as one-third of all health care expenditures may be going to waste, fraud and unnecessary medical care.
Within the decade, a third or more of all plans may qualify.
The ETF has seen more than a third of its value trimmed since May and is now languishing around price levels not seen since July 2010.
If his party cannot garner an outright majority, its likely coalition partner is Labour, the traditional third party of Irish politics which may just pip Fianna Fail this time around.
While America has had numerous third parties, one of our system's strengths is that it in effect forces one of the major parties to co-opt and smooth out the rough edges of issues that third parties may advocate.
In the case of Beijing, residential real estate (disclosure: I have property inside the Third Ring Road) may be getting ahead of itself but not yet be a bubble.
FORBES: Is Jim Chanos Right About A China Real Estate Bubble?
Their surveys from May suggest a third of diners have reduced their expenditure on eating out per month or reduced the frequency of visits.
Ten of the band members had been charged last May with third-degree felony hazing for the death of 26-year-old Robert Champion, but the state attorney's office said they are adding the charge of manslaughter for each defendant.
While there is still uncertainty in the literature about the magnitude of the relationship between obesity and mortality, it may account for a fifth to a third of the shortfall in longevity in the U.S. compared to other nations, the report says.
FORBES: Why Are U.S. Women Dying Earlier? Because We're Fat And We Smoke(d) Too Much
The proposed rules may create a third set of employees, those who prefer payment in cash to a pension promise.
Their chances of repeating a third-place finish may depend on an against-the-odds victory over Dinamo Zagreb and the cash from qualifying for the Europa League group stage.
To a third set, the type of people who may frequent the website I call home, wristwatches are a veritable cocktail of heritage, innovation, craftsmanship and art.
The third problem, that the results of clinical trials may be irrelevant to the real world, has several components.
What third party liability may arise as a result of such an attack?
FORBES: Congress Needs to Go Back To School on Cyber Legislation
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