Pollster ratings · Head to head

Ipsos vs. SSRS: which pollster is more accurate?

Ipsos comes out ahead on 5 of 6 measures in the Crosstab Trust Index, which grades pollsters on how close their final polls came to actual results from 1998 to 2022.

★ Ahead
Ipsos
B+
Trust Score 60/100 · rank #28
 
SSRS
C-
Trust Score 24/100 · rank #61

Head to head

MeasureIpsosSSRS
Trust Score60/100 ★24/100
Average error
how far final polls missed the result
4.7 pts ★5.4 pts
Versus expected
error compared with what its races predicted
0.1 worse ★1.3 worse
Consistency
random miss once its tilt is removed
±4 pts±3.7 pts ★
Historical bias
closer to even is better
D+2.4 ★D+4.4
Winners called73% ★63%
Track record
final polls analyzed, 1998–2022
175 polls30 polls
2026 polls1519
2026 lean
versus other polls of the same races
—D+0.7

Compare them in the interactive Trust Index All pollster ratings

More comparisons: SSRS vs. YouGov · Ipsos vs. YouGov · Emerson College vs. SSRS · Emerson College vs. Ipsos · SSRS vs. University of New Hampshire Survey Center · Ipsos vs. University of New Hampshire Survey Center · New York Times/Siena College vs. SSRS · Ipsos vs. New York Times/Siena College

Frequently asked questions

Which is more accurate, Ipsos or SSRS?

Ipsos has the smaller average error (4.7 pts vs. 5.4 pts). Overall, ipsos comes out ahead on 5 of 6 measures in the Crosstab Trust Index (Ipsos: B+, Trust Score 60; SSRS: C-, Trust Score 24).

Grades: Crosstab Trust Index, computed from FiveThirtyEight's pollster-ratings data (CC BY 4.0), 1998–2022; 2026 measures from Crosstab's polling data.

Updated 2026-11-11 · Crosstab, nonpartisan polling analysis.