The phrase "a margin of only" is correct and usable in written English.
It can be used when discussing a small difference or gap between two values, often in contexts like competition, statistics, or finance.
Example: "The team won the match with a margin of only two points, making it one of the closest games of the season."
Alternatives: "a narrow margin of" or "a small margin of".
The following election, the Democrats won the state back but by a margin of only 5 percentage points.
It doesn't take much of a reaction to wipe out a margin of only three-quarters of a point".
In a Florida state election this past January, 134 votes apparently weren't recorded -- and this was in a race decided by a margin of only 12 votes.
"There may be difficulties with Congress," Mr. Sorenson quoted Kennedy, "but a margin of only one vote would still be a mandate".
Mr Kenyatta, the deputy prime minister, achieved that but with a margin of only 4,100 votes of the more than 12.3 million ballots cast.
Overcoming the opposition of the local Democratic machine, Brooklyn accepted consolidation by a margin of only 277 votes and became a part of Greater New York in 1898.
Well, no landslide, but a very modest victory with a margin of 2-32-3percentnly.
That's why the final (not preliminary) exit polls in Wisconsin had a theoretical margin of error of ±4 points, while a telephone poll of the same sample size would have a margin of error of only about ±2 points.
And even then, the government would face an uncomfortably tight squeeze in order to leave Social Security untouched, with a margin of error of only about $1 billion, a pittance in an overall federal budget approaching $2 trillion a year.
Military GPS is even more accurate and has a margin of error of only a few centimeters.
However, we observed changes in IgG antibody titers at a serum PFOA concentration as low as 3.5 × 10 ng/mL, which is a margin of exposure of only 70 for environmentally/occupationally exposed populations.
