| Results Tracker for CD16 | |||
|---|---|---|---|
| Date | Candidate | Votes | Percent |
| 2012-11-08 | Jim Costa (D) | 57,378 | 54.50% |
| 2012-11-08 | Brian Daniel Whelan (R) | 47,964 | 45.50% |
| 2012-11-10 | Jim Costa (D) | 57,378 | 54.50% |
| 2012-11-10 | Brian Daniel Whelan (R) | 47,964 | 45.50% |
| 2012-11-11 | Jim Costa (D) | 57,378 | 54.50% |
| 2012-11-11 | Brian Daniel Whelan (R) | 47,964 | 45.50% |
| 2012-11-12 | Jim Costa (D) | 57,378 | 54.50% |
| 2012-11-12 | Brian Daniel Whelan (R) | 47,964 | 45.50% |
| 2012-11-16 | Jim Costa (D) | 68,779 | 56.30% |
| 2012-11-16 | Brian Daniel Whelan (R) | 53,332 | 43.70% |
| 2012-11-20 | Jim Costa (D) | 75,378 | 56.60% |
| 2012-11-20 | Brian Daniel Whelan (R) | 57,776 | 43.40% |
| 2012-11-21 | Jim Costa (D) | 75,946 | 56.70% |
| 2012-11-21 | Brian Daniel Whelan (R) | 58,020 | 43.30% |
| 2012-11-28 | Jim Costa (D) | 78,269 | 56.30% |
| 2012-11-28 | Brian Daniel Whelan (R) | 60,840 | 43.70% |
| 2012-11-29 | Jim Costa (D) | 78,792 | 56.30% |
| 2012-11-29 | Brian Daniel Whelan (R) | 61,053 | 43.70% |
| Current | Jim Costa (D) | 84,649 | 57.40% |
| Current | Brian Daniel Whelan (R) | 62,801 | 42.60% |
| Change | Change in Votes | Percentage Change | |
| Increase from Election Day Results | Jim Costa (D) | 27,271 | 47.5% |
| Increase from Election Day Results | Brian Daniel Whelan (R) | 14,837 | 30.9% |