Pollster · 54 of 1769
Glengariff Group
Polls scored
5
Mean error
5.0 pt
Signed bias
D+4.60
Aggregation weight
0.81
Pollster vs prediction market
From 92 race-polls · 28 matched marketsPre-poll P(D) (avg)
70.5%
Market price the day before each poll dropped
Post-poll market shift
+0.1 pt
Average move within 24h of release (D+ = market moved toward D)
Market alignment
+5.1 pt
Net direction markets moved toward Glengariff Group's read
Composite quality score
0–100 · weighted of 5 measured components58
of 100 · tier · moderate
Moderate quality. Worth checking individual signals before relying on this pollster's headline.
Pollster vs editorial consensus
alignedAcross 28 graded races, Glengariff Group's released topline differed from the median editorial-rater consensus by an average of +1.5pp. That's well-aligned with the consensus — useful as a sanity check, less useful as a contrarian signal.
Mean delta
+1.5pp
Median delta
-0.8pp
Std-dev
5.3pp
N graded
28
Recent activity
Total all time
92
Last 30d
0
Last 90d
17
Last 180d
24
Recent polls
- 5/11/2026Michigan · Governor · 2026Benson 34.0 · Duggan 23.0 · James 29.0
- 5/11/2026Michigan · Governor · 2026Benson 34.0 · Duggan 23.0 · Johnson 26.0
- 5/11/2026Michigan · Senate · 2026Stevens 42.0 · Rogers 44.0
- 5/11/2026Michigan · Senate · 2026McMorrow 41.0 · Rogers 43.0
- 5/11/2026Michigan · Senate · 2026El-Sayed 40.0 · Rogers 45.0
- 4/30/2026Michigan · Governor · 2026Jocelyn Benson 34.0 · John James 29.0 · Mike Duggan 23.0
- 4/30/2026Michigan · Governor · 2026Jocelyn Benson 34.0 · Perry Johnson 26.0 · Mike Duggan 23.0
- 4/30/2026Michigan · Senate · 2026Haley Stevens 42.0 · Mike Rogers 44.0
- 4/30/2026Michigan · Senate · 2026Abdul El-Sayed 40.0 · Mike Rogers 45.0
- 4/30/2026Michigan · Senate · 2026Mallory McMorrow 41.0 · Mike Rogers 43.0