Contest List

Number of contests: 41

The auditing selection statistics are based on the Overall Margin percentage if it has been entered to reflect results from other counties. Otherwise the margin used for the statistics comes from the Margin calculated based on just the ballots reflected in the given report.

Information on two alternative auditing sampling methods is presented: SAFE (in which each audit unit has an equal chance of being picked). and NEGEXP (which provides more statistical signifigance for a given effort and requires selecting larger audit units with higher probability than smaller ones). The numbers given here are based on the given confidence level. I.e. they are designed so the audit will either 1) find a discrepancy and call for an escalation or full hand recount, or 2) reduce the risk of confirming an incorrect outcome to e.g. 25% (for a confidence level of 75%), even if the tally system has been manipulated. A maximum "within-precinct-miscount" of 20% is assumed. See On Auditing Elections When Precincts Have Different Sizes, by Javed A. Aslam, Raluca A. Popa and Ronald L. Rivest

Contest Name Audit Units Overall Margin % Margin % Contest Seq Threshold Random Priority Confidence % Proportion % Units to audit: NEGEXP Units to audit: SAFE Ballots to audit: NEGEXP Ballots to audit: SAFE
City of Boulder Council Candidates, Vote For 5 381 0.846 0.846 000001 1.18222 0.63601 1.85881 75 100 57.9 112.0 20724 27422
City of Lafayette Council Candidates, Vote For 4 367 1.163 1.163 000002 0.86020 0.27023 3.18321 75 100 41.7 136.0 4077 6375
City of Longmont Mayor 406 7.210 000003 0.13870 0.55456 0.25010 75 100 7.6 22.0 661 1021
City of Longmont Council Member At-Large, Vote For 2 406 7.698 000004 0.12991 0.59450 0.21851 75 100 7.1 20.0 1239 1855
City of Longmont Council Member Ward 2 390 20.528 000005 0.04871 0.83193 0.05856 75 100 2.7 7.0 92 133
City of Louisville City Council Person Ward I (4 Years) 282 24.833 000006 0.04027 0.24524 0.16421 75 100 2.2 7.0 37 44
City of Louisville City Council Person Ward II (4 Years) 250 66.590 000007 0.01502 0.09577 0.15681 75 100 0.8 1.0 10 5
City of Louisville City Council Person Ward III (4 Years) 263 23.067 000008 0.04335 0.24624 0.17605 75 100 2.4 7.0 34 43
Boulder Valley School District Director District B (4 Years) 420 22.110 22.218 000009 0.04523 0.31757 0.14242 75 85 2.1 3.4 246 310
Boulder Valley School District Director District E (4 Years) 420 2.960 0.912 000010 0.33784 0.77427 0.43633 75 85 15.6 24.8 1792 2250
Boulder Valley School District Director District F (4 Years) 420 11.311 10.888 000011 0.08841 0.97463 0.09071 75 85 4.2 6.8 480 621
Park School District R-3 School Director At Large (4 Years), Vote For 2 96 2.899 2.618 000012 0.34500 0.20189 1.70882 75 5 0.9 2.5 5 10
St. Vrain Valley School District School Board Candidates (4 Years) Director District B 423 17.456 17.832 000013 0.05729 0.68459 0.08368 75 84 2.6 5.9 257 343
St. Vrain Valley School District School Board Candidates (4 Years) Director District C 423 27.730 28.264 000014 0.03606 0.61025 0.05909 75 84 1.7 3.3 162 196
St. Vrain Valley School District School Board Candidates (4 Years) Director District D 423 58.169 56.527 000015 0.01719 0.13506 0.12729 75 84 0.8 0.8 77 49
St. Vrain Valley School District School Board Candidates (4 Years) Director District F 423 58.611 56.939 000016 0.01706 0.39070 0.04367 75 84 0.8 0.8 77 49
Thompson School District R2-J Director District B (4 Years) 53 70.990 45.588 000017 0.01409 0.48943 0.02878 75 0 0.0 0.0 0 0
Thompson School District R2-J Director District D (2 Years) 53 70.766 42.647 000018 0.01413 0.52789 0.02677 75 0 0.0 0.0 0 0
Thompson School District R2-J Director District E (4 Years) 53 14.391 22.059 000019 0.06949 0.58996 0.11779 75 0 0.0 0.0 0 0
Thompson School District R2-J Director District F (4 Years) 53 71.413 48.529 000020 0.01400 0.74901 0.01870 75 0 0.0 0.0 0 0
Open Space Countywide 0.25% Sales and Use Tax Extension and $50M Bond Authorization Issue. 424 4.038 000021 0.24766 0.06966 3.55518 75 100 13.5 14.0 2039 2087
ClimateSmart (CEOLID) $85M Bond Authorization. 424 1.840 000022 0.54344 0.60917 0.89209 75 100 29.1 33.0 4387 4919
$6.1M Bond Authorization for Energy Conservation Projects. 424 11.852 000023 0.08437 0.41858 0.20157 75 100 4.7 5.0 702 745
DA Term Limits Extension to Three Terms. 424 0.035 000024 28.72818 0.54357 52.85089 75 100 413.1 318.0 61679 47402
Sales and Use Tax Extension 381 34.632 000025 0.02887 0.02528 1.14231 75 100 1.6 2.0 117 98
Open Space General Obligation Bonds 381 14.573 000026 0.06862 0.90086 0.07617 75 100 3.8 8.0 276 392
Pension Bond Funding 381 31.907 000027 0.03134 0.20404 0.15360 75 100 1.7 3.0 127 147
Changes To Housing Excise Tax 381 13.855 000028 0.07218 0.96551 0.07475 75 100 4.0 8.0 290 392
Town of Erie Ballot Question 2A 338 54.130 61.626 000029 0.01847 0.21334 0.08660 75 60 0.6 0.6 6 3
Town of Erie Ballot Question 2B 338 6.195 9.527 000030 0.16141 0.97322 0.16585 75 60 5.2 28.6 48 127
City of Longmont Ballot Issue 2A 406 24.258 000031 0.04122 0.26880 0.15336 75 100 2.3 5.0 200 232
City of Longmont Ballot Question 2B 406 14.266 000032 0.07010 0.12186 0.57522 75 100 3.9 11.0 338 510
City of Longmont Ballot Question 2C 406 11.967 000033 0.08356 0.55254 0.15123 75 100 4.6 13.0 402 603
City of Longmont Ballot Question 2D 406 24.385 000034 0.04101 0.57949 0.07077 75 100 2.3 5.0 198 232
City of Louisville Ballot Question 2A 345 67.964 000035 0.01471 0.22002 0.06687 75 100 0.8 1.0 32 14
City of Louisville Ballot Question 2B 345 68.602 000036 0.01458 0.49026 0.02973 75 100 0.8 1.0 32 14
City of Louisville Ballot Question 2C 345 18.422 000037 0.05428 0.40522 0.13396 75 100 3.0 14.0 117 191
Town of Lyons Ballot Issue 2A 216 3.592 000038 0.27842 0.97895 0.28441 75 100 14.6 52.0 56 127
Rocky Mountain Fire Protection District Ballot Issue 5A 369 14.417 000039 0.06936 0.22457 0.30887 75 100 3.8 8.0 51 73
Form of Mill Levy Increase Ballot Issue 266 3.462 000040 0.28882 0.15440 1.87056 75 100 15.2 78.0 97 288
Form of Bond Ballot Issue 266 0.611 000041 1.63667 0.78001 2.09826 75 100 70.0 200.0 393 738