When L.A.'s mayoral races have gone to a runoff, the vote total has increased an average of 18% from the primary.
An average bump this year would produce the lowest total since 1941.
| Year | Primary votes | Runoff votes | Change |
|---|---|---|---|
| 2005 | 420,570 | 498,729 | 18.6% |
| 2001 | 511,521 | 579,408 | 13.3% |
| 1993 | 488,578 | 598,436 | 22.5% |
| 1973 | 674,555 | 781,241 | 15.8% |
| 1969 | 731,423 | 856,174 | 17.1% |
| 1961 | 469,882 | 553,699 | 17.8% |
| 1953 | 488,961 | 551,298 | 12.7% |
| 1949 | 406,071 | 453,567 | 11.7% |
| 1941 | 303,755 | 336,891 | 10.9% |
| 1937 | 250,698 | 323,186 | 28.9% |
| 1933 | 335,094 | 348,820 | 4.1% |
| 1929 | 209,698 | 260,194 | 24.1% |
| 1921 | 82,666 | 102,741 | 24.3% |
| 1919 | 62,757 | 77,212 | 23.0% |
| 1915 | 72,687 | 95,000 | 30.7% |
| 1913 | 80,280 | 89,798 | 11.9% |
| Average | – | – | 18.0% |
| 2013 actual | 377,881 | – | – |
| 2013 projection | – | 445,900 | – |