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Member City Council Dist. 4 - Berkeley (AlamedaCounty; 2022-11-08)

🔗 2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley     (tags: { AlamedaCounty_CA , from-bolson , actual , 2022 , AlamedaCounty-2022 , 2022-11 , CA })

Below is the ABIF from the "2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley" election (Member City Council Dist. 4 - Berkeley (AlamedaCounty; 2022-11-08))

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Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

Results

🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley

Below are the results of the election represented above using various election methods with abiftool/abiflib. The detected ballot type from the ABIF above is "ranked". Some methods may transform these ballots for analysis; see method notices for details. Resubmit the ABIF with "Transform ballots" turned off to minimize the transformations.

Method Winner
IRV/RCV KATE HARRISON
FPTP KATE HARRISON
Approval KATE HARRISON
STAR KATE HARRISON
Condorcet/Copeland KATE HARRISON
Election results summary showing voting method winners
click/tap to expand
tabbed view

IRV/RCV results

2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley IRV/RCV result permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/IRV#IRV

  • IRV/RCV Winner: KATE HARRISON with 3,183 votes (97.0%) in final round
  • Runner-up: Write-in with 95 votes (2.9%) in final round
  • Exhausted ballots in final round: 3 (0.1%)
  • Number of rounds: 1
  • Ballots counted in final round: 3,278 (99.9%)
  • Majority of ballots: 1,641 (50.0%)
  • Total ballots: 3,281
Round 1
Overview:
Active ballots: 3,281 (100.0%)

Exhausted ballots: 0 (0.0%)
Overvotes: 3 (0.1%)

Counted ballots: 3,278 (99.9%)
Winning threshold: 1,640 (49.98%)
IRV/RCV winner:
KATE HARRISON: 3,183 (97.0%)✅
→
Write-in: 95 (2.9%) (🛑eliminated)
→

Overvotes are ballots where multiple candidates are ranked at the same, highest-ranking position.

FPTP result

"FPTP" is "First-past-the-post", also known as "plurality" or "choose-one"
2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley FPTP results permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/FPTP#FPTP
📝
Note — Only using first-choices on ranked ballots

  • FPTP Winner: KATE HARRISON with 3,183 first-place votes (97.0%)
  • Runner-up: Write-in with 95 first-place votes (2.9%)
  • Margin of victory: 3,088 votes (94.1 percentage points)
  • First-place votes
    • KATE HARRISON: 3,183 votes (97.0 %)
    • Write-in: 95 votes (2.9 %)
  • Overvotes: 3 (0.1 %)
  • Total ballots: 3,281

Approval voting results

2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley approval voting results permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/approval#approval
📝
Note — Approval counts estimated from 3,281 ranked ballots using favorite_viable_half method
Details

The 'favorite_viable_half' conversion algorithm: find the candidate with the most first preferences, and then determine the minimum number of figurative seats that would need to be open in order for the candidate to exceed the Hare quota with the given first-prefs. We use this to estimate how many candidates are likely to be viable candidates.

Using first-choice vote totals as a rough guide, approximately 2 candidates appear viable: KATE HARRISON and Write-in. The approximation then assumes each voter approves up to 1 of their top-ranked viable candidates (half of 2). All candidates ranked at or above the lowest-ranked of each ballot's top viable candidates receive approval (considering up to 1 viable candidates per ballot).

See transformed ballots

Note: For Approval, these choose_many ballots are inferred from ranked ballots.

Conversion method: favorite_viable_half

#------- metadata -------
{ballotcount: 3281}
{version: "0.1"}
{ballotcount_abif_metadata: "3281"}
{is_ranking_to_rating: true}
#------ candlines ------
=Write-in:[Write-in]
=[KATE HARRISON]:[KATE HARRISON]
#------- votelines ------
3018:[KATE HARRISON]/1
58:Write-in/1
57:[KATE HARRISON]/1
51:[KATE HARRISON]/1
26:[KATE HARRISON]/1
24:Write-in/1
20:[KATE HARRISON]/1
9:Write-in/1
6:[KATE HARRISON]/1
3:[KATE HARRISON]/1
2:Write-in/1
1:[KATE HARRISON]/1
1:Write-in/1
1:[KATE HARRISON]/1
1:Write-in/1
  • Approval Winner: KATE HARRISON
  • Approval Results:
    • KATE HARRISON — 3,183 approvals (97.01% of ballots) (✅ winner)
    • Write-in — 95 approvals (2.9% of ballots)
  • Total: 3,281 ballots (3,278 total approvals)

STAR results

2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley STAR results permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/STAR#STAR
📝
Note — STAR ratings estimated from ranked ballots using Borda scoring method
Details

The ranked ballots have been converted to STAR ratings using Borda scoring: each candidate receives points equal to (number_of_candidates - their_rank). In this election, we have 2 candidates, so the 1st choice gets 1 points, the 2nd choice gets 0 points, etc. These Borda scores are then used as STAR ratings for tabulation by STAR.

  • STAR winner: KATE HARRISON
  • Finalists: KATE HARRISON vs Write-in
  • Runoff result:
    • KATE HARRISON: 3,183 votes (97.0%)
    • Write-in: 95 votes (2.9%)
    • No preference: 3 voters (0.1%)
  • Total stars allocated: 3,284
  • Total ballots: 3,281
★★★★★★

★★★★★

★★★★★★
★★★★★
★★★★★★
★★★★★
★★★★★★
★★★★★
★★★★★★
(one star above is approximately 66 stars allocated by voters)
  • First round:
    • ★#0: KATE HARRISON received 3,186 stars (97.0%) from 3,186 voters (97.1%)
    • ★#1: Write-in received 98 stars (3.0%) from 98 voters (3.0%)
  • Finalists:
    • ★KATE HARRISON (✅ winner) preferred by 3,183 of 3,281 voters
    • ★Write-in preferred by 95 of 3,281 voters
    • ★No preference between the finalists: 3

NOTE: Since ratings or stars are not present in the provided ballots, allocated stars are estimated using a Borda-like formula.

Condorcet/Copeland results

2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley Condorcet/Copeland results permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/pairwise#pairwise
  • Winner: KATE HARRISON
  • Runner-up: Write-in (beats all other candidates except KATE HARRISON)
  • Smallest margin: KATE HARRISON over Write-in (3,183-95; margin: 3,088)
  • Largest margin: KATE HARRISON over Write-in (3,183-95; margin: 3,088)
  • Pairwise ties: none
  • Total ballots: 3,281

Win-loss-tie (Condorcet/Copeland) table

2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley w-l-t table permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/pairwise#wlt
Member City Council Dist. 4 - Berkeley (AlamedaCounty; 2022-11-08) pairwise matchups
KATE HARRISON
(1-0-0)
KATE HARRISON
1 victory ⇣
Write-in
(0-1-0)
KATE HARRISON: 3,183(97.0%)
Write-in: 95(2.9%)
(No preference: 3; 0.1%)

Pairwise tournament (Copeland ordered)

2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley pairwise diagram permalink:
🔗https://abif.electorama.com/id/2022-11-08_AlamedaCounty-Member_City_Council_Dist._4_-_Berkeley/pairwise#dot

%3 KATE HARRISON KATE HARRISON 1-0-0 (1 wins, 0 losses, 0 ties) Write-in Write-in 0-1-0 KATE HARRISON->Write-in ← KATE HARRISON: 3183 Write-in: 95

Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

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