Opinion polling in the Philippine Senate election, 2010

Post-filing

Note: Tables only include confirmed candidates by the COMELEC.

The following are results of surveys taken after candidates were confirmed by the COMELEC.

Poll source	Date(s) administered	Sample size	Margin of error	Candidates
SWS	May 2–3, 2010	2,400	±2%	Revilla 51%	Estrada 50%	Defensor Santiago 45%	Drilon 39%	Enrile 36%	Cayetano 34%	Marcos 31%	Sotto 30%	Recto 29%	Osmeña 29%	Lapid 26%	Guingona 22%
Pulse Asia	Apr. 23–25, 2010	1,800	±2%	Revilla 52.8%	Estrada 50%	Defensor Santiago 47.9%	Enrile 40.6%	Drilon 38.4%	Cayetano 38.1%	Sotto 32.3%	Osmeña 32.2%	Recto 30.1%	Marcos 27.7%	Guingona 23%	Lapid 21%
SWS	Apr. 16–19, 2010	2,100	±2%	Revilla 54%	Estrada 53%	Defensor Santiago 44%	Enrile 36%	Cayetano 36%	Drilon 36%	Sotto 35%	Recto 30%	Osmeña 29%	Marcos 28%	Lapid 27%	Remulla 21%
SWS	Mar. 19–22, 2010	2,100	±2%	Revilla 53%	Estrada 52%	Defensor Santiago 44%	Cayetano 42%	Drilon 36%	Enrile 35%	Sotto 33%	Recto 30%	Marcos 30%	Lapid 29%	Osmeña 26%	Remulla 25%
The Center	Feb. 24–28, 2010	2,400	±2%	Revilla 49%	Defensor Santiago 47%	Estrada 45%	Cayetano 44%	Recto 44%	Sotto 39%	Marcos 39%	Lapid 35%	Enrile 35%	Drilon 33%	Osmeña 31%	Guingona 28%
SWS	Feb. 24–28, 2010	2,100	±2%	Revilla 54%	Cayetano 51%	Estrada 47%	Defensor Santiago 46%	Drilon 45%	Recto 41%	Enrile 40%	Sotto 39%	Marcos 32%	Lapid 31%	Osmeña 31%	Pimentel 27%
Pulse Asia	Feb. 21–25, 2010	1,800	±2%	Revilla 53.6%	Estrada 52.6%	Defensor Santiago 49.4%	Cayetano 45.4%	Drilon 45%	Enrile 43.8%	Sotto 33.2%	Recto 33.1%	Osmeña 29.1%	Marcos 28.2%	Lapid 25.8%	Guingona 24.3%
Pulse Asia	Jan. 22–26, 2010	1,800	±2%	Revilla 51.9%	Estrada 50.4%	Cayetano 46.8%	Drilon 43.2%	Defensor Santiago 41.2%	Enrile 39.7%	Recto 34.4%	Osmeña 31.6%	Sotto 30.5%	Lapid 29.7%	Marcos 26.3%	de Venecia 24.0%
SWS	Jan. 21–24, 2010	2,100	±2%	Revilla 58.0%	Cayetano 57.0%	Estrada 57.0%	Defensor Santiago 50.0%	Drilon 47.0%	Enrile 42.0%	Sotto 41.0%	Recto 40.0%	Marcos 39.0%	Osmeña 38.0%	Guingona 31.0%	de Venecia 30.0%
Pulse Asia	Dec. 8–10, 2009	1,800	±2.0%	Estrada 55.1%	Revilla 52.7%	Defensor Santiago 51.4%	Drilon 48.4%	Cayetano 43.1%	Recto 43.1%	Enrile 42.7%	Osmeña 40.2%	Sotto 40.2%	Marcos 31.0%	Guingona 28.5%	de Venecia 24.3%
SWS	Dec. 5–10, 2009	2,100	±2.2%	Defensor Santiago 55.0%	Revilla 54.0%	Estrada 53.0%	Cayetano 48.0%	Drilon 47.0%	Recto 44.0%	Sotto 40.0%	Enrile 37.0%	Marcos 32.0%	Osmeña 31.0%	Guingona 24.0%	Lapid 23.0%

Graph

The result of each candidate's opinion poll (survey) result is denoted by a plot point, or a "period" (per.). The lines denote moving averages (mov. avg.) of the last three polls (each poll given equal weight) for each candidate; as pollsters may use different methodologies, it is invalid to plot each period from all pollsters as if it is a single series. Hence, a moving average is used to link all polls from all pollsters into one series. Some candidates may not appear on some polls, and these do not include candidates who are not on the final list but were included in other polls. The twelfth ranking candidate in each poll is denoted by a line, for easy reference.