narrow margin; slim margin
Used to describe a very small difference in scores, votes, times, or other measurable outcomes. Often appears in news or sports contexts.
The election was decided by a narrow margin.
彼は僅差で一位を逃した。
He missed first place by a slim margin.
僅差 means a narrow margin or close contest, the opposite of ダントツ's sense of an overwhelming, decisive lead.
Compound of 僅 (kin, 'a little') and 差 (sa, 'difference'). The reading きん for 僅 is the kan'on reading.