| Simulation of proposed AV system in UK applied to 2010 election results | First-choice votes polled by candidate who won under AV (percentage of total constituency votes) | Second- or third-choice votes from those initially choosing other parties, re-assigned under AV | Total votes picked up by the candidate winning under AV | Votes from those whose first choice was not the winning candidate and whose second- or third-choice vote was discarded under AV | ||||||
| Northern Irish | Winning Candidate (Elected as MP) | Winning Party | ||||||||
| Constituencies / Seats in UK Parliament | ||||||||||
| From: To: | ||||||||||
| Antrim East | AV changes underlined | |||||||||
| Upper Bann | Number | % | Number | % | Number | % | Number | % | ||
| Antrim East | Wilson, Sammy | DUP | 13,993 | 45.9% | 1,004 | 3.3% | 14,997 | 49.2% | 15,505 | 50.8% |
| Antrim North | Paisley Junior, Ian | DUP | 19,672 | 47.9% | 30 | 0.1% | 19,702 | 48.0% | 21,327 | 52.0% |
| Antrim South | McCrea, William | DUP | 11,536 | 33.9% | 1,006 | 3.0% | 12,542 | 36.9% | 21,467 | 63.1% |
| Belfast East | Robinson, Peter | DUP | 11,306 | 32.8% | 4,025 | 11.7% | 15,331 | 44.5% | 19,157 | 55.5% |
| Belfast North | Dodds, Nigel | DUP | 14,812 | 40.0% | 1,218 | 3.3% | 16,030 | 43.3% | 20,963 | 56.7% |
| Belfast South | McDonnell, Alasdair | SDLP | 14,026 | 41.0% | 3,295 | 9.6% | 17,321 | 50.7% | 16,865 | 49.3% |
| Belfast West | Adams, Gerry | SF | 22,840 | 71.1% | 0 | 0.0% | 22,840 | 71.1% | 9,293 | 28.9% |
| Down North | Hermon, Sylvia | Independent | 21,181 | 63.3% | 1,043 | 3.1% | 22,224 | 66.4% | 11,257 | 33.6% |
| Down South | Ritchie, Margaret | SDLP | 20,648 | 48.5% | 620 | 1.5% | 21,268 | 49.9% | 21,321 | 50.1% |
| Fermanagh and South Tyrone | Connor, Rodney | Independent | 21,300 | 45.5% | 1,251 | 2.7% | 22,551 | 48.2% | 24,252 | 51.8% |
| Foyle | Durkan, Mark | SDLP | 16,922 | 44.7% | 1,101 | 2.9% | 18,023 | 47.6% | 19,866 | 52.4% |
| Lagan Valley | Donaldson, Jeffrey | DUP | 18,199 | 49.8% | 0 | 0.0% | 18,199 | 49.8% | 18,341 | 50.2% |
| Londonderry East | Campbell, Gregory | DUP | 12,097 | 34.6% | 4,173 | 11.9% | 16,270 | 46.6% | 18,680 | 53.4% |
| Newry and Armagh | Murphy, Conor | SF | 18,857 | 42.0% | 67 | 0.1% | 18,924 | 42.1% | 25,982 | 57.9% |
| Strangford | Shannon, Jim | DUP | 14,926 | 45.9% | 1,041 | 3.2% | 15,967 | 49.1% | 16,538 | 50.9% |
| Tyrone West | Doherty, Pat | SF | 18,050 | 48.4% | 76 | 0.2% | 18,126 | 48.6% | 19,149 | 51.4% |
| Ulster Mid | McGuinness, Martin | SF | 21,239 | 52.0% | 0 | 0.0% | 21,239 | 52.0% | 19,603 | 48.0% |
| Upper Bann | Simpson, Thomas | DUP | 14,000 | 33.8% | 0 | 0.0% | 14,000 | 33.8% | 27,383 | 66.2% |
| SUMMARY - NORTHERN IRELAND | Alternative Vote (AV) results for all Northern Irish seats if applied to 2010 Election votes | Total votes cast in Northern Ireland | Total first-choice winning votes, all Northern Irish seats | Total second- or third-choice votes re-assigned under AV in Northern Ireland | Total votes picked up by winning candidates under AV in Northern Ireland | Total votes discarded under AV, all Northern Irish seats | ||||
| 672,503 | 305,604 | 19,950 | 325,554 | 346,949 | ||||||
| 100.0% | 45.4% | 3.0% | 48.4% | 51.6% | ||||||
| Results based on simulation program AVOTER (AV Operational Testing, Evaluation and Research) | ||||||||||