SINGAPORE - For the first time since independence, all constituencies in Singapore were contested in the 2015 General Election. In all, 2,304,331 votes were cast on Friday (Sept 11). Here are some highlights of the poll results.

Best SMC result

The People's Action Party (PAP) garnered 77.25 per cent of valid votes in Radin Mas SMC, despite a three-cornered fight. The Reform Party got 12.71 per cent of valid votes, while independent candidate Han Hui Hui got 10.04 per cent.

Best GRC result

The PAP got the best result for a GRC in Jurong, with 79.28 per cent of valid votes. The party beat a team from Singaporeans First, which garnered 20.72 per cent of valid votes.

SMC with biggest swing result for PAP

Not including new single-seat wards, the PAP had the biggest vote swing in an SMC for Potong Pasir. In the 2011 General Election, the party got 50.36 per cent of the votes. But this year, it garnered 66.41 per cent of valid votes, representing a 16.05 percentage point swing.

GRC with biggest swing result for PAP

Excluding new GRCs, Bishan Toa-Payoh had the largest vote swing in a GRC for the PAP. The party won 56.93 per cent of valid votes in the 2011 election. But in the 2015 polls, the PAP got 73.59 per cent, a 16.66 percentage point swing.

Best SMC result for opposition

The Workers' Party (WP) successfully defended its Hougang single seat with 57.69 per cent of valid votes, the best result for the opposition in an SMC. The PAP garnered 42.31 per cent of the votes in the ward.

Best GRC result for opposition and narrowest win

For GRCs, WP had the best result among opposition parties, with 50.95 per cent of the valid votes for Aljunied GRC. The PAP got 49.05 per cent of the votes. This was also the narrowest win in the General Election, with a difference of just 1.9 percentage points or 2,612 votes.

Worst result

With 0.6 per cent of valid votes (150 votes) for Bukit Batok SMC, independent candidate Samir Salim Neji had the worst result for the General Election.

Party with the largest rise in vote share

The PAP had the biggest increase in vote share among political parties, excluding new ones, for the 2015 General Election. It got a 9.72 percentage point swing compared to the 2011 polls.

Party with the largest drop in vote share

Excluding new parties, the Singapore People's Party had the biggest drop in its vote share for the 2015 election compared with the 2011 polls, with a 14.34 percentage point fall.

Highest proportion of rejected votes

Some 3 per cent of votes cast, or 5,310 votes, for Pasir Ris-Punggol GRC were rejected, the largest proportion for all the constituencies for this election. Of all votes cast, 2.05 per cent of them were rejected.

Lowest proportion of rejected votes

Hougang SMC had the least proportion of rejected votes - 1 per cent of votes cast, or 236 votes.