The greenback had already gained about 0.9 per cent against the Japanese currency on Friday, after the US Senate approved a budget blueprint for the 2018 fiscal year.
london - Investors bet that Abe's election victory will see a continuation of the ultra-loose 'Abenomics' policy
Japanese Prime Minister Shinzo Abe's victory eased fears that the economic steps implemented under his leadership, including an expansive asset-purchase programme by the Bank of Japan, would be disrupted and would halt the yen's depreciation against the dollar.
The dollar gained as much as half a per cent to reach 114.10 yen after the results, its strongest since July 11. It came off those highs in early dealing in London but was still up 0.3 per cent on the day.
"The relatively muted rise in dollar/yen following Abe's election win is consistent with the fact that this was very much the most expected result," said BNP Paribas currency strategist Sam Lynton-Brown.
"The outcome should be consistent with the market continuing to price static and dovish policy from the BoJ, even in the context of [BoJ governor Haruhiko] Kuroda's term coming to an end in April of next year." - Reuters