| 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 | ||||||
| English | Winning Candidate (Elected as MP) | Winning Party | ||||||||
| Constituencies / Seats in UK Parliament | ||||||||||
| From: To: | ||||||||||
| Camborne and Redruth | AV changes underlined | |||||||||
| Colchester | Number | % | Number | % | Number | % | Number | % | ||
| Camborne and Redruth | Goldsworthy, Julia | Lib-Dem | 15,903 | 37.4% | 3,424 | 8.1% | 19,327 | 45.5% | 23,166 | 54.5% |
| Cambridge | Huppert, Julian | Lib-Dem | 19,621 | 39.1% | 5,009 | 10.0% | 24,630 | 49.1% | 25,500 | 50.9% |
| Cambridgeshire North East | Barclay, Stephen | Conservative | 26,862 | 51.6% | 0 | 0.0% | 26,862 | 51.6% | 25,202 | 48.4% |
| Cambridgeshire North West | Vara, Shailesh | Conservative | 29,425 | 50.5% | 0 | 0.0% | 29,425 | 50.5% | 28,858 | 49.5% |
| Cambridgeshire South | Lansley, Andrew | Conservative | 27,995 | 47.4% | 647 | 1.1% | 28,642 | 48.5% | 30,414 | 51.5% |
| Cambridgeshire South East | Paice, Jim | Conservative | 27,629 | 48.0% | 669 | 1.2% | 28,298 | 49.1% | 29,304 | 50.9% |
| Cannock Chase | Burley, Aidan | Conservative | 18,271 | 40.1% | 2,081 | 4.6% | 20,352 | 44.7% | 25,207 | 55.3% |
| Canterbury | Brazier, Julian | Conservative | 22,050 | 44.8% | 991 | 2.0% | 23,041 | 46.8% | 26,168 | 53.2% |
| Carlisle | Stevenson, John | Conservative | 16,589 | 39.3% | 1,499 | 3.6% | 18,088 | 42.9% | 24,112 | 57.1% |
| Carshalton and Wallington | Brake, Tom | Lib-Dem | 22,180 | 48.3% | 213 | 0.5% | 22,393 | 48.8% | 23,525 | 51.2% |
| Castle Point | Harris, Rebecca | Conservative | 19,806 | 44.0% | 1,486 | 3.3% | 21,292 | 47.3% | 23,734 | 52.7% |
| Charnwood | Dorrell, Stephen | Conservative | 26,560 | 49.6% | 450 | 0.8% | 27,010 | 50.4% | 26,532 | 49.6% |
| Chatham and Aylesford | Crouch, Tracey | Conservative | 20,230 | 46.2% | 962 | 2.2% | 21,192 | 48.4% | 22,615 | 51.6% |
| Cheadle | Hunter, Mark | Lib-Dem | 24,717 | 47.1% | 2,097 | 4.0% | 26,814 | 51.1% | 25,698 | 48.9% |
| Chelmsford | Burns, Simon | Conservative | 25,207 | 46.2% | 1,149 | 2.1% | 26,356 | 48.3% | 28,237 | 51.7% |
| Chelsea and Fulham | Hands, Greg | Conservative | 24,093 | 60.5% | 0 | 0.0% | 24,093 | 60.5% | 15,763 | 39.5% |
| Cheltenham | Horwood, Martin | Lib-Dem | 26,659 | 50.5% | 0 | 0.0% | 26,659 | 50.5% | 26,127 | 49.5% |
| Chesham and Amersham | Gillan, Cheryl | Conservative | 31,658 | 60.4% | 0 | 0.0% | 31,658 | 60.4% | 20,786 | 39.6% |
| Chester, City of | Mosley, Stephen | Conservative | 18,995 | 40.6% | 1,326 | 2.8% | 20,321 | 43.4% | 26,469 | 56.6% |
| Chesterfield | Holmes, Paul | Lib-Dem | 17,342 | 37.8% | 2,810 | 6.1% | 20,152 | 44.0% | 25,687 | 56.0% |
| Chichester | Tyrie, Andrew | Conservative | 31,427 | 55.3% | 0 | 0.0% | 31,427 | 55.3% | 25,360 | 44.7% |
| Chingford and Woodford Green | Duncan Smith, Iain | Conservative | 22,743 | 52.8% | 0 | 0.0% | 22,743 | 52.8% | 20,363 | 47.2% |
| Chippenham | Hames, Duncan | Lib-Dem | 23,970 | 45.8% | 1,980 | 3.8% | 25,950 | 49.5% | 26,435 | 50.5% |
| Chipping Barnet | Villiers, Theresa | Conservative | 24,700 | 48.8% | 470 | 0.9% | 25,170 | 49.7% | 25,438 | 50.3% |
| Chorley | Hoyle, Lindsay | Labour | 21,515 | 43.2% | 2,025 | 4.1% | 23,540 | 47.3% | 26,234 | 52.7% |
| Christchurch | Chope, Christopher | Conservative | 27,888 | 56.4% | 0 | 0.0% | 27,888 | 56.4% | 21,528 | 43.6% |
| Cities of London and Westminster | Field, Mark | Conservative | 19,264 | 52.2% | 0 | 0.0% | 19,264 | 52.2% | 17,667 | 47.8% |
| Clacton | Carswell, Douglas | Conservative | 22,867 | 53.0% | 0 | 0.0% | 22,867 | 53.0% | 20,256 | 47.0% |
| Cleethorpes | Vickers, Martin | Conservative | 18,939 | 42.1% | 1,634 | 3.6% | 20,573 | 45.8% | 24,393 | 54.2% |
| Colchester | Russell, Bob | Lib-Dem | 22,151 | 48.0% | 372 | 0.8% | 22,523 | 48.8% | 23,616 | 51.2% |
| Results based on simulation program AVOTER (AV Operational Testing, Evaluation and Research) | ||||||||||