diff --git a/src/test/java/network/brightspots/rcv/TabulatorTests.java b/src/test/java/network/brightspots/rcv/TabulatorTests.java
index 83ceb2067..ad4a8ab2f 100644
--- a/src/test/java/network/brightspots/rcv/TabulatorTests.java
+++ b/src/test/java/network/brightspots/rcv/TabulatorTests.java
@@ -451,4 +451,16 @@ void tiebreakPreviousRoundCountsThenRandomTest() {
   void treatBlankAsUndeclaredWriteInTest() {
     runTabulationTest("test_set_treat_blank_as_undeclared_write_in");
   }
+
+  @Test
+  @DisplayName("undeclared write-in (UWI) cannot win test")
+  void uwiCannotWinTest() {
+    runTabulationTest("uwi_cannot_win_test");
+  }
+
+  @Test
+  @DisplayName("multi-seat UWI test")
+  void multiSeatUwiTest() {
+    runTabulationTest("multi_seat_uwi_test");
+  }
 }
diff --git a/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_config.json b/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_config.json
new file mode 100644
index 000000000..54292b08f
--- /dev/null
+++ b/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_config.json
@@ -0,0 +1,54 @@
+{
+  "tabulatorVersion" : "TEST",
+  "outputSettings" : {
+    "contestName" : "Multi-Seat UWI Test",
+    "outputDirectory" : "output",
+    "contestDate" : "",
+    "contestJurisdiction" : "",
+    "contestOffice" : "",
+    "tabulateByPrecinct" : false,
+    "generateCdfJson" : false
+  },
+  "cvrFileSources" : [ {
+    "filePath" : "multi_seat_uwi_test_cvr.xlsx",
+    "firstVoteColumnIndex" : "2",
+    "firstVoteRowIndex" : "2",
+    "idColumnIndex" : "",
+    "precinctColumnIndex" : "",
+    "provider" : ""
+  } ],
+  "candidates" : [ {
+    "name" : "A",
+    "code" : "",
+    "excluded" : false
+  }, {
+    "name" : "B",
+    "code" : "",
+    "excluded" : false
+  }, {
+    "name" : "C",
+    "code" : "",
+    "excluded" : false
+  } ],
+  "rules" : {
+    "tiebreakMode" : "usePermutationInConfig",
+    "overvoteRule" : "exhaustImmediately",
+    "winnerElectionMode" : "standard",
+    "randomSeed" : "",
+    "numberOfWinners" : "2",
+    "multiSeatBottomsUpPercentageThreshold" : "",
+    "decimalPlacesForVoteArithmetic" : "4",
+    "minimumVoteThreshold" : "0",
+    "maxSkippedRanksAllowed" : "1",
+    "maxRankingsAllowed" : "max",
+    "nonIntegerWinningThreshold" : false,
+    "hareQuota" : false,
+    "batchElimination" : false,
+    "exhaustOnDuplicateCandidate" : false,
+    "treatBlankAsUndeclaredWriteIn" : false,
+    "overvoteLabel" : "",
+    "undervoteLabel" : "",
+    "undeclaredWriteInLabel" : "UWI",
+    "rulesDescription" : ""
+  }
+}
diff --git a/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_cvr.xlsx b/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_cvr.xlsx
new file mode 100644
index 000000000..1e1f73a4c
Binary files /dev/null and b/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_cvr.xlsx differ
diff --git a/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_expected_summary.json b/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_expected_summary.json
new file mode 100644
index 000000000..593c50d73
--- /dev/null
+++ b/src/test/resources/network/brightspots/rcv/test_data/multi_seat_uwi_test/multi_seat_uwi_test_expected_summary.json
@@ -0,0 +1,66 @@
+{
+  "config" : {
+    "contest" : "Multi-Seat UWI Test",
+    "date" : "",
+    "jurisdiction" : "",
+    "office" : "",
+    "threshold" : "6"
+  },
+  "results" : [ {
+    "round" : 1,
+    "tally" : {
+      "A" : "6",
+      "B" : "3",
+      "C" : "2",
+      "UWI" : "4"
+    },
+    "tallyResults" : [ {
+      "elected" : "A",
+      "transfers" : { }
+    } ]
+  }, {
+    "round" : 2,
+    "tally" : {
+      "A" : "6.0000",
+      "B" : "3",
+      "C" : "2",
+      "UWI" : "4"
+    },
+    "tallyResults" : [ {
+      "eliminated" : "UWI",
+      "transfers" : {
+        "exhausted" : "4"
+      }
+    } ]
+  }, {
+    "round" : 3,
+    "tally" : {
+      "A" : "6.0000",
+      "B" : "3",
+      "C" : "2"
+    },
+    "tallyResults" : [ {
+      "eliminated" : "C",
+      "transfers" : {
+        "exhausted" : "2"
+      }
+    } ]
+  }, {
+    "round" : 4,
+    "tally" : {
+      "A" : "6.0000",
+      "B" : "3"
+    },
+    "tallyResults" : [ {
+      "elected" : "B",
+      "transfers" : { }
+    } ]
+  }, {
+    "round" : 5,
+    "tally" : {
+      "A" : "6.0000",
+      "B" : "3.0000"
+    },
+    "tallyResults" : [ ]
+  } ]
+}
\ No newline at end of file
diff --git a/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_config.json b/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_config.json
new file mode 100644
index 000000000..f664a4630
--- /dev/null
+++ b/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_config.json
@@ -0,0 +1,50 @@
+{
+  "tabulatorVersion" : "TEST",
+  "outputSettings" : {
+    "contestName" : "UWI Test",
+    "outputDirectory" : "output",
+    "contestDate" : "",
+    "contestJurisdiction" : "",
+    "contestOffice" : "",
+    "tabulateByPrecinct" : false,
+    "generateCdfJson" : false
+  },
+  "cvrFileSources" : [ {
+    "filePath" : "uwi_cannot_win_test_cvr.xlsx",
+    "firstVoteColumnIndex" : "2",
+    "firstVoteRowIndex" : "2",
+    "idColumnIndex" : "",
+    "precinctColumnIndex" : "",
+    "provider" : ""
+  } ],
+  "candidates" : [ {
+    "name" : "A",
+    "code" : "",
+    "excluded" : false
+  }, {
+    "name" : "B",
+    "code" : "",
+    "excluded" : false
+  } ],
+  "rules" : {
+    "tiebreakMode" : "usePermutationInConfig",
+    "overvoteRule" : "exhaustImmediately",
+    "winnerElectionMode" : "standard",
+    "randomSeed" : "",
+    "numberOfWinners" : "1",
+    "multiSeatBottomsUpPercentageThreshold" : "",
+    "decimalPlacesForVoteArithmetic" : "4",
+    "minimumVoteThreshold" : "0",
+    "maxSkippedRanksAllowed" : "1",
+    "maxRankingsAllowed" : "max",
+    "nonIntegerWinningThreshold" : false,
+    "hareQuota" : false,
+    "batchElimination" : false,
+    "exhaustOnDuplicateCandidate" : false,
+    "treatBlankAsUndeclaredWriteIn" : false,
+    "overvoteLabel" : "",
+    "undervoteLabel" : "",
+    "undeclaredWriteInLabel" : "UWI",
+    "rulesDescription" : ""
+  }
+}
diff --git a/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_cvr.xlsx b/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_cvr.xlsx
new file mode 100644
index 000000000..e3f4609a5
Binary files /dev/null and b/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_cvr.xlsx differ
diff --git a/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_expected_summary.json b/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_expected_summary.json
new file mode 100644
index 000000000..fddaf3c45
--- /dev/null
+++ b/src/test/resources/network/brightspots/rcv/test_data/uwi_cannot_win_test/uwi_cannot_win_test_expected_summary.json
@@ -0,0 +1,33 @@
+{
+  "config" : {
+    "contest" : "UWI Test",
+    "date" : "",
+    "jurisdiction" : "",
+    "office" : "",
+    "threshold" : "3"
+  },
+  "results" : [ {
+    "round" : 1,
+    "tally" : {
+      "A" : "3",
+      "B" : "1",
+      "UWI" : "5"
+    },
+    "tallyResults" : [ {
+      "eliminated" : "UWI",
+      "transfers" : {
+        "exhausted" : "5"
+      }
+    } ]
+  }, {
+    "round" : 2,
+    "tally" : {
+      "A" : "3",
+      "B" : "1"
+    },
+    "tallyResults" : [ {
+      "elected" : "A",
+      "transfers" : { }
+    } ]
+  } ]
+}
\ No newline at end of file