B−182nd of 556

GBA Strategies

GBA Strategies has 18 polls in our database and is rated on 2 past polls scored against results (2018).

Rated polls

2

2018

Average miss

2.9

All pollsters: 6.8

Lean

D+0.4

Against other polls of the same races

Picked winner

100%

Of rated polls

Last poll

Oct 22, 2018

2018 Ohio's 12th congressional district election (2018)

Every rated poll against the result

Each dot is one poll from the last three weeks of a race: how far its margin landed from the result. Above the line it overstated Democrats; below, Republicans. Bars show each cycle’s average lean.

  • Poll
  • Cycle average
D+1.4

2 rated polls; misses beyond 10 points are drawn at the edge. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET

By type of race

Race typeRated pollsAvg. missAll pollstersLeanPicked winner
House14.36.8D+4.3100%
Senate11.65.5R+1.6100%

Avg. miss: green where it beats all pollsters’ average for that type. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET

Among all pollsters

Average miss of every rated pollster, in points. GBA Strategies is marked; darker bars are pollsters with a smaller miss.

Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET

DatesQuestionSampleResultMarginvs resultSource
Oct 20–22, 20182018 Ohio's 12th congressional district election (2018)570 VO'Connor 47 · Balderson 47Even—Release
Oct 18–21, 20182018 United States Senate election in Texas (2018)1,000 VO'Rourke 46 · Cruz 50R+4—Release
Oct 8–10, 20182018 New York's 1st congressional district election (2018)500 VGershon 46 · Zeldin 50R+4—Release
Oct 1–4, 20182018 Illinois's 13th congressional district election (2018) for the Longdrigan campaign500 VLondrigan 48 · Davis 49R+1—Release
Sep 20–30, 20182018 Texas's 32nd congressional district election (2018)600 VAllred 47 · Sessions 46D+1—Release
Sep 20–23, 20182018 California's 45th congressional district election (2018)400 VPorter 48 · Walters 47D+1—Release
Sep 11–13, 20182018 Ohio's 1st congressional district election (2018)500 VPureval 46 · Chabot 44D+2—Release
Sep 4–6, 20182018 Ohio's 12th congressional district election (2018)500 VO'Connor 46 · Balderson 47R+1—Release
Aug 1–5, 20182018 United States Senate election in New Mexico (2018)800 VHeinrich 47 · Rich 29D+18—Release
Jul 30–Aug 1, 20182018 Texas's 32nd congressional district election (2018)500 VAllred 45 · Sessions 47R+2—Release

Latest poll ended Oct 22, 2018. Source: each poll’s own release, via the 99chambers polls database

Who it polls for

Sponsors of its polls since 2016, by share of polls.

No sponsor named78%
No sponsor named17%
the Longdrigan campaign6%

23% of its polls were paid for by candidates or party committees.

Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET