school_board_d3 (Portland_ME; 2022-11-08)

🔗 2022-11-08_Portland_ME-school_board_d3 (tags: { Portland_ME-2022 , from-bolson , actual , 2022 , 2022-11 , Portland_ME , ME })

Below is the ABIF from the "2022-11-08_Portland_ME-school_board_d3" election (school_board_d3 (Portland_ME; 2022-11-08))

ABIF submission area (show)

#------- metadata -------
{version: "0.1"}
{ballotcount: 7518}
#------ candlines ------
=[Burk, Adam M.]:[Burk, Adam M.]
=[Opperman, Julianne R.]:[Opperman, Julianne R.]
=[Rosenthal, Samuel H.]:[Rosenthal, Samuel H.]
#------- votelines ------
1301:
1031:[Opperman, Julianne R.]
984:[Burk, Adam M.]
866:[Opperman, Julianne R.]>[Burk, Adam M.]>[Rosenthal, Samuel H.]
851:[Burk, Adam M.]>[Opperman, Julianne R.]>[Rosenthal, Samuel H.]
447:[Burk, Adam M.]>[Opperman, Julianne R.]
446:[Opperman, Julianne R.]>[Rosenthal, Samuel H.]>[Burk, Adam M.]
324:[Opperman, Julianne R.]>[Burk, Adam M.]
302:[Rosenthal, Samuel H.]
275:[Rosenthal, Samuel H.]>[Opperman, Julianne R.]>[Burk, Adam M.]
207:[Burk, Adam M.]>[Rosenthal, Samuel H.]>[Opperman, Julianne R.]
186:[Opperman, Julianne R.]>[Rosenthal, Samuel H.]
113:[Rosenthal, Samuel H.]>[Burk, Adam M.]>[Opperman, Julianne R.]
79:[Rosenthal, Samuel H.]>[Opperman, Julianne R.]
38:[Burk, Adam M.]>[Rosenthal, Samuel H.]
25:[Rosenthal, Samuel H.]>[Burk, Adam M.]
4:[Opperman, Julianne R.]>[Burk, Adam M.]
4:[Rosenthal, Samuel H.]>[Burk, Adam M.]
4:[Rosenthal, Samuel H.]
4:[Opperman, Julianne R.]
4:[Opperman, Julianne R.]>[Rosenthal, Samuel H.]
3:[Opperman, Julianne R.]
3:[Burk, Adam M.]
3:[Rosenthal, Samuel H.]>[Opperman, Julianne R.]
3:[Opperman, Julianne R.]>[Burk, Adam M.]
3:[Rosenthal, Samuel H.]>[Opperman, Julianne R.]
3:[Burk, Adam M.]>[Opperman, Julianne R.]
1:[Burk, Adam M.]>[Opperman, Julianne R.]
1:[Rosenthal, Samuel H.]>[Burk, Adam M.]
1:[Burk, Adam M.]
1:[Opperman, Julianne R.]>[Rosenthal, Samuel H.]
1:[Burk, Adam M.]>[Rosenthal, Samuel H.]

Method options

FPTP results?

IRV/RCV results?

IRV extra analysis?

Approval results?

STAR results?

pairwise (Condorcet/Copeland) results?

pairwise tournament diagram?

Ballot options Transform ballots (using ballot-type metadata)?

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

Results

🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3

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	Opperman, Julianne R.
FPTP	Opperman, Julianne R.
Approval	Opperman, Julianne R.
STAR	Opperman, Julianne R.
Condorcet/Copeland	Opperman, Julianne R.

OFF ON tabbed view

IRV/RCV results

2022-11-08_Portland_ME-school_board_d3 IRV/RCV result permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/IRV#IRV

IRV/RCV Winner: Opperman, Julianne R. with 3,232 votes (43.0%) in final round
Runner-up: Burk, Adam M. with 2,679 votes (35.6%) in final round
Exhausted ballots in final round: 1,607 (21.4%)
Number of rounds: 2
Ballots counted in final round: 5,911 (78.6%)
Majority of ballots: 3,760 (50.0%)
Total ballots: 7,518

Round 1	Round 2
Overview: Active ballots: 7,518 (100.0%) Exhausted ballots: 1,301 (17.3%) Counted ballots: 6,217 (82.7%) Winning threshold: 3,109 (41.35%)	Overview: Active ballots: 7,518 (100.0%) Exhausted ballots: 1,607 (21.4%) Counted ballots: 5,911 (78.6%) Winning threshold: 2,956 (39.32%)
Opperman, Julianne R.: 2,872 (38.2%) →	IRV/RCV winner: Opperman, Julianne R.: 3,232 (43.0%)✅ →
Burk, Adam M.: 2,536 (33.7%) →	Burk, Adam M.: 2,679 (35.6%) (🛑eliminated) →
Rosenthal, Samuel H.: 809 (10.8%) (🛑eliminated) →	~~Rosenthal, Samuel H.~~

FPTP result

"FPTP" is "First-past-the-post", also known as "plurality" or "choose-one"
2022-11-08_Portland_ME-school_board_d3 FPTP results permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/FPTP#FPTP

FPTP Winner: Opperman, Julianne R. with 2,872 first-place votes (38.2%)
Runner-up: Burk, Adam M. with 2,536 first-place votes (33.7%)
Margin of victory: 336 votes (4.5 percentage points)
First-place votes
- Opperman, Julianne R.: 2,872 votes (38.2 %)
- Burk, Adam M.: 2,536 votes (33.7 %)
- Rosenthal, Samuel H.: 809 votes (10.8 %)
Blanks: 1,301 (17.3 %)
Total ballots: 7,518

Approval voting results

2022-11-08_Portland_ME-school_board_d3 approval voting results permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/approval#approval

📝

Note — Approval counts estimated from 7,518 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 3 candidates appear viable: Opperman, Julianne R., Burk, Adam M., and Rosenthal, Samuel H.. The approximation then assumes each voter approves up to 2 of their top-ranked viable candidates (half of 3, rounded up). All candidates ranked at or above the lowest-ranked of each ballot's top viable candidates receive approval (considering up to 2 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: 7518}
{version: "0.1"}
{ballotcount_abif_metadata: "7518"}
{is_ranking_to_rating: true}
#------ candlines ------
=[Opperman, Julianne R.]:[Opperman, Julianne R.]
=[Burk, Adam M.]:[Burk, Adam M.]
=[Rosenthal, Samuel H.]:[Rosenthal, Samuel H.]
#------- votelines ------
1031:[Opperman, Julianne R.]/1
984:[Burk, Adam M.]/1
866:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
851:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
447:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
446:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
324:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
302:[Rosenthal, Samuel H.]/1
275:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
207:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1
186:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
113:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1
79:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
38:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1
25:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1
4:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
4:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1
4:[Rosenthal, Samuel H.]/1
4:[Opperman, Julianne R.]/1
4:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
3:[Opperman, Julianne R.]/1
3:[Burk, Adam M.]/1
3:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
3:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
3:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
3:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
1:[Burk, Adam M.]/1=[Opperman, Julianne R.]/1
1:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1
1:[Burk, Adam M.]/1
1:[Opperman, Julianne R.]/1=[Rosenthal, Samuel H.]/1
1:[Burk, Adam M.]/1=[Rosenthal, Samuel H.]/1

Approval Winner: Opperman, Julianne R.
Approval Results:
- Opperman, Julianne R. — 4,534 approvals (60.31% of ballots) (✅ winner)
- Burk, Adam M. — 3,876 approvals (51.56% of ballots)
- Rosenthal, Samuel H. — 1,692 approvals (22.51% of ballots)
Total: 7,518 ballots (10,102 total approvals)

STAR results

2022-11-08_Portland_ME-school_board_d3 STAR results permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/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 3 candidates, so the 1st choice gets 2 points, the 2nd choice gets 1 points, etc. These Borda scores are then used as STAR ratings for tabulation by STAR.

STAR winner: Opperman, Julianne R.
Finalists: Opperman, Julianne R. vs Burk, Adam M.
Runoff result:
- Opperman, Julianne R.: 3,232 votes (43.0%)
- Burk, Adam M.: 2,679 votes (35.6%)
- No preference: 1607 voters (21.4%)
Total stars allocated: 16,319
Total ballots: 7,518

★★★★★★

★★★★★

★★★★★★

★★★★★

★★★★★★

★★★★★

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★★★★★

★★★★★★

(one star above is approximately 326 stars allocated by voters)

First round:
- ★#0: Opperman, Julianne R. received 7,406 stars (45.4%) from 4,534 voters (60.3%)
- ★#1: Burk, Adam M. received 6,412 stars (39.3%) from 3,876 voters (51.6%)
- ★#2: Rosenthal, Samuel H. received 2,501 stars (15.3%) from 1,692 voters (22.5%)
Finalists:
- ★Opperman, Julianne R. (✅ winner) preferred by 3,232 of 7,518 voters
- ★Burk, Adam M. preferred by 2,679 of 7,518 voters
- ★No preference between the finalists: 1607

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_Portland_ME-school_board_d3 Condorcet/Copeland results permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/pairwise#pairwise

Winner: Opperman, Julianne R.
Runner-up: Burk, Adam M. (beats all other candidates except Opperman, Julianne R.)
Smallest margin: Opperman, Julianne R. over Burk, Adam M. (3,232-2,679; margin: 553)
Largest margin: Opperman, Julianne R. over Rosenthal, Samuel H. (4,174-1,055; margin: 3,119)
Pairwise ties: none
Total ballots: 7,518

Win-loss-tie (Condorcet/Copeland) table

2022-11-08_Portland_ME-school_board_d3 w-l-t table permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/pairwise#wlt

school_board_d3 (Portland_ME; 2022-11-08) pairwise matchups
Opperman, Julianne R. (2-0-0)	Opperman, Julianne R. 2 victories ⇣
Burk, Adam M. (1-1-0)	Opperman, Julianne R.: 3,232(43.0%) Burk, Adam M.: 2,679(35.6%) (No preference: 1,607; 21.4%)	Burk, Adam M. ⇽ 1 loss / 1 victory^† ⇣
Rosenthal, Samuel H. (0-2-0)	Opperman, Julianne R.: 4,174(55.5%) Rosenthal, Samuel H.: 1,055(14.0%) (No preference: 2,289; 30.4%)	Burk, Adam M.: 3,733(49.7%) Rosenthal, Samuel H.: 1,446(19.2%) (No preference: 2,339; 31.1%)

Pairwise tournament (Copeland ordered)

2022-11-08_Portland_ME-school_board_d3 pairwise diagram permalink:
🔗https://abif.electorama.com/id/2022-11-08_Portland_ME-school_board_d3/pairwise#dot

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

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