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Member City Council Dist. 3 - Berkeley (AlamedaCounty; 2020-11-03)

πŸ”— 2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley     (tags: { AlamedaCounty_CA , 2020-11 , from-bolson , actual , CA , AlamedaCounty-2020 , 2020 })

Below is the ABIF from the "2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley" election (Member City Council Dist. 3 - Berkeley (AlamedaCounty; 2020-11-03))

ABIF submission area (show)
Method options
Ballot options

Voting methods: IRV β€’ FPTP β€’ approval β€’ STAR β€’ Pairwise β€’ All methods

Results

πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_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 BEN BARTLETT
FPTP BEN BARTLETT
Approval BEN BARTLETT
STAR BEN BARTLETT
Condorcet/Copeland BEN BARTLETT
Election results summary showing voting method winners
click/tap to expand
tabbed view

IRV/RCV results

2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley IRV/RCV result permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/IRV#IRV

  • IRV/RCV Winner: BEN BARTLETT with 5,340 votes (68.9%) in final round
  • Runner-up: DEBORAH MATTHEWS with 1,837 votes (23.7%) in final round
  • Exhausted ballots in final round: 26 (0.3%)
  • Number of rounds: 1
  • Ballots counted in final round: 7,720 (99.7%)
  • Majority of ballots: 3,874 (50.0%)
  • Total ballots: 7,746
Round 1
Overview:
Active ballots: 7,746 (100.0%)

Exhausted ballots: 0 (0.0%)
Overvotes: 26 (0.3%)

Counted ballots: 7,720 (99.7%)
Winning threshold: 3,861 (49.85%)
IRV/RCV winner:
BEN BARTLETT: 5,340 (68.9%)βœ…
β†’
DEBORAH MATTHEWS: 1,837 (23.7%) (πŸ›‘eliminated)
β†’
ORLANDO MARTINEZ: 501 (6.5%) (πŸ›‘eliminated)
β†’
Write-in: 42 (0.5%) (πŸ›‘eliminated)
β†’

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"
2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley FPTP results permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/FPTP#FPTP
πŸ“
Note β€” Only using first-choices on ranked ballots

  • FPTP Winner: BEN BARTLETT with 5,340 first-place votes (68.9%)
  • Runner-up: DEBORAH MATTHEWS with 1,837 first-place votes (23.7%)
  • Margin of victory: 3,503 votes (45.2 percentage points)
  • First-place votes
    • BEN BARTLETT: 5,340 votes (68.9 %)
    • DEBORAH MATTHEWS: 1,837 votes (23.7 %)
    • ORLANDO MARTINEZ: 501 votes (6.5 %)
    • Write-in: 42 votes (0.5 %)
  • Overvotes: 26 (0.3 %)
  • Total ballots: 7,746

Approval voting results

2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley approval voting results permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/approval#approval
πŸ“
Note β€” Approval counts estimated from 7,746 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: BEN BARTLETT and DEBORAH MATTHEWS. 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: 7746}
{version: "0.1"}
{ballotcount_abif_metadata: "7746"}
{is_ranking_to_rating: true}
#------ candlines ------
=Write-in:[Write-in]
=[BEN BARTLETT]:[BEN BARTLETT]
=[DEBORAH MATTHEWS]:[DEBORAH MATTHEWS]
=[ORLANDO MARTINEZ]:[ORLANDO MARTINEZ]
#------- votelines ------
2442:[BEN BARTLETT]/1
1350:[BEN BARTLETT]/1
702:[BEN BARTLETT]/1
549:[DEBORAH MATTHEWS]/1
531:[BEN BARTLETT]/1
505:[DEBORAH MATTHEWS]/1
368:[DEBORAH MATTHEWS]/1
228:[DEBORAH MATTHEWS]/1
147:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
140:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
117:[DEBORAH MATTHEWS]/1
102:[BEN BARTLETT]/1
49:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
47:[BEN BARTLETT]/1
19:[BEN BARTLETT]/1
16:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
11:[BEN BARTLETT]/1
11:[DEBORAH MATTHEWS]/1
10:[BEN BARTLETT]/1
9:[BEN BARTLETT]/1
9:[BEN BARTLETT]/1
7:[BEN BARTLETT]/1
7:[DEBORAH MATTHEWS]/1
7:[BEN BARTLETT]/1
7:[BEN BARTLETT]/1
7:[BEN BARTLETT]/1
7:[BEN BARTLETT]/1
6:[BEN BARTLETT]/1=Write-in/1
6:[BEN BARTLETT]/1
5:[DEBORAH MATTHEWS]/1
5:[BEN BARTLETT]/1
5:[BEN BARTLETT]/1
4:[BEN BARTLETT]/1
4:[DEBORAH MATTHEWS]/1
4:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
4:[BEN BARTLETT]/1
4:[BEN BARTLETT]/1
4:[DEBORAH MATTHEWS]/1
4:[DEBORAH MATTHEWS]/1
4:[BEN BARTLETT]/1
4:[BEN BARTLETT]/1
3:[DEBORAH MATTHEWS]/1
3:[BEN BARTLETT]/1=Write-in/1
3:[DEBORAH MATTHEWS]/1
3:[BEN BARTLETT]/1
3:[DEBORAH MATTHEWS]/1
3:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
3:[BEN BARTLETT]/1
3:[DEBORAH MATTHEWS]/1
2:[DEBORAH MATTHEWS]/1
2:[BEN BARTLETT]/1
2:[BEN BARTLETT]/1
2:[BEN BARTLETT]/1
2:[DEBORAH MATTHEWS]/1
2:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1=Write-in/1
2:[BEN BARTLETT]/1
2:[DEBORAH MATTHEWS]/1
2:[DEBORAH MATTHEWS]/1
2:[BEN BARTLETT]/1
2:[DEBORAH MATTHEWS]/1
2:[BEN BARTLETT]/1
2:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
2:[BEN BARTLETT]/1
2:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1=Write-in/1
1:[DEBORAH MATTHEWS]/1=Write-in/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
1:[DEBORAH MATTHEWS]/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1=Write-in/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1=Write-in/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1=Write-in/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1=Write-in/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1
1:[BEN BARTLETT]/1=Write-in/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
1:[DEBORAH MATTHEWS]/1=Write-in/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1
1:[BEN BARTLETT]/1=[ORLANDO MARTINEZ]/1
1:[BEN BARTLETT]/1
1:[DEBORAH MATTHEWS]/1
1:[DEBORAH MATTHEWS]/1=[ORLANDO MARTINEZ]/1
  • Approval Winner: BEN BARTLETT
  • Approval Results:
    • BEN BARTLETT — 5,516 approvals (71.21% of ballots) (βœ… winner)
    • DEBORAH MATTHEWS — 2,052 approvals (26.49% of ballots)
    • ORLANDO MARTINEZ — 378 approvals (4.88% of ballots)
    • Write-in — 19 approvals (0.25% of ballots)
  • Total: 7,746 ballots (7,965 total approvals)

STAR results

2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley STAR results permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/STAR#STAR
πŸ“
Note β€” 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 4 candidates, so the 1st choice gets 3 points, the 2nd choice gets 2 points, etc. These Borda scores are then used as STAR ratings for tabulation by STAR.

  • STAR winner: BEN BARTLETT
  • Finalists: BEN BARTLETT vs DEBORAH MATTHEWS
  • Runoff result:
    • BEN BARTLETT: 5,519 votes (71.2%)
    • DEBORAH MATTHEWS: 2,054 votes (26.5%)
    • No preference: 173 voters (2.2%)
  • Total stars allocated: 35,835
  • Total ballots: 7,746
β˜…β˜…β˜…β˜…β˜…β˜…

β˜…β˜…β˜…β˜…β˜…

β˜…β˜…β˜…β˜…β˜…β˜…
β˜…β˜…β˜…β˜…β˜…
β˜…β˜…β˜…β˜…β˜…β˜…
β˜…β˜…β˜…β˜…β˜…
β˜…β˜…β˜…β˜…β˜…β˜…
β˜…β˜…β˜…β˜…β˜…
β˜…β˜…β˜…β˜…β˜…β˜…
(one star above is approximately 717 stars allocated by voters)
  • First round:
    • β˜…#0: BEN BARTLETT received 18,751 stars (52.3%) from 6,899 voters (89.1%)
    • β˜…#1: DEBORAH MATTHEWS received 11,073 stars (30.9%) from 4,972 voters (64.2%)
    • β˜…#2: ORLANDO MARTINEZ received 5,721 stars (16.0%) from 3,611 voters (46.6%)
    • β˜…#3: Write-in received 290 stars (0.8%) from 142 voters (1.8%)
  • Finalists:
    • β˜…BEN BARTLETT (βœ… winner) preferred by 5,519 of 7,746 voters
    • β˜…DEBORAH MATTHEWS preferred by 2,054 of 7,746 voters
    • β˜…No preference between the finalists: 173

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

Condorcet/Copeland results

2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley Condorcet/Copeland results permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/pairwise#pairwise
  • Winner: BEN BARTLETT
  • Runner-up: DEBORAH MATTHEWS (beats all other candidates except BEN BARTLETT)
  • Smallest margin: ORLANDO MARTINEZ over Write-in (3,585-109; margin: 3,476)
  • Largest margin: BEN BARTLETT over Write-in (6,876-64; margin: 6,812)
  • Pairwise ties: none
  • Total ballots: 7,746

Win-loss-tie (Condorcet/Copeland) table

2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley w-l-t table permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/pairwise#wlt
Member City Council Dist. 3 - Berkeley (AlamedaCounty; 2020-11-03) pairwise matchups
BEN BARTLETT
(3-0-0)
BEN BARTLETT
3 victories ⇣
DEBORAH MATTHEWS
(2-1-0)
BEN BARTLETT: 5,519(71.2%)
DEBORAH MATTHEWS: 2,054(26.5%)
(No preference: 173; 2.2%)
DEBORAH MATTHEWS
⇽ 1 loss / 2 victories† ⇣
ORLANDO MARTINEZ
(1-2-0)
BEN BARTLETT: 6,312(81.5%)
ORLANDO MARTINEZ: 886(11.4%)
(No preference: 548; 7.1%)
DEBORAH MATTHEWS: 4,022(51.9%)
ORLANDO MARTINEZ: 1,199(15.5%)
(No preference: 2,525; 32.6%)
ORLANDO MARTINEZ
⇽ 2 losses / 1 victory† ⇣
Write-in
(0-3-0)
BEN BARTLETT: 6,876(88.8%)
Write-in: 64(0.8%)
(No preference: 806; 10.4%)
DEBORAH MATTHEWS: 4,945(63.8%)
Write-in: 98(1.3%)
(No preference: 2,703; 34.9%)
ORLANDO MARTINEZ: 3,585(46.3%)
Write-in: 109(1.4%)
(No preference: 4,052; 52.3%)

Pairwise tournament (Copeland ordered)

2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley pairwise diagram permalink:
πŸ”—https://abif.electorama.com/id/2020-11-03_AlamedaCounty-Member_City_Council_Dist._3_-_Berkeley/pairwise#dot

%3 BEN BARTLETT BEN BARTLETT 3-0-0 (3 wins, 0 losses, 0 ties) DEBORAH MATTHEWS DEBORAH MATTHEWS 2-1-0 BEN BARTLETT->DEBORAH MATTHEWS ← BEN BARTLETT: 5519 DEBORAH MATTHEWS: 2054 ORLANDO MARTINEZ ORLANDO MARTINEZ 1-2-0 BEN BARTLETT->ORLANDO MARTINEZ ← BEN BARTLETT: 6312 ORLANDO MARTINEZ: 886 Write-in Write-in 0-3-0 BEN BARTLETT->Write-in ← BEN BARTLETT: 6876 Write-in: 64 DEBORAH MATTHEWS->ORLANDO MARTINEZ ← DEBORAH MATTHEWS: 4022 ORLANDO MARTINEZ: 1199 DEBORAH MATTHEWS->Write-in ← DEBORAH MATTHEWS: 4945 Write-in: 98 ORLANDO MARTINEZ->Write-in ← ORLANDO MARTINEZ: 3585 Write-in: 109

Voting methods: IRV β€’ FPTP β€’ approval β€’ STAR β€’ Pairwise β€’ All methods

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