diff --git a/app/Models/Solo/Score.php b/app/Models/Solo/Score.php
index 6b4632a30a2..1c4841b188c 100644
--- a/app/Models/Solo/Score.php
+++ b/app/Models/Solo/Score.php
@@ -64,7 +64,7 @@ public static function createFromJsonOrExplode(array $params)
         // older lazer builds potentially submit incorrect details here (and we still want to
         // accept their scores.
         if (!$score->data->passed) {
-            $score->data->rank = 'D';
+            $score->data->rank = 'F';
         }
 
         $score->saveOrExplode();
diff --git a/public/images/badges/score-ranks-v2019/GradeSmall-F.svg b/public/images/badges/score-ranks-v2019/GradeSmall-F.svg
new file mode 100644
index 00000000000..aad9de51fd3
--- /dev/null
+++ b/public/images/badges/score-ranks-v2019/GradeSmall-F.svg
@@ -0,0 +1,22 @@
+<svg width="32" height="16" viewBox="0 0 32 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_8410_3113)">
+<rect width="32" height="16" rx="8" fill="#3F3F3F"/>
+<g style="mix-blend-mode:darken" opacity="0.75">
+<mask id="mask0_8410_3113" style="mask-type:alpha" maskUnits="userSpaceOnUse" x="0" y="0" width="32" height="16">
+<rect width="32" height="16" rx="8" fill="#FF5A5A"/>
+</mask>
+<g mask="url(#mask0_8410_3113)">
+<path d="M16 -9L33.3205 21H-1.32051L16 -9Z" fill="#373737"/>
+<path d="M27.5 3L33.9952 14.25H21.0048L27.5 3Z" fill="#2E2E2E"/>
+<path d="M7.5 -2L11.3971 4.75H3.60289L7.5 -2Z" fill="#2B2B2B"/>
+<path d="M9.5 13L13.3971 19.75H5.60289L9.5 13Z" fill="#2B2B2B"/>
+</g>
+</g>
+<path d="M12.3145 12V3.46875H20.3066V5.18555H14.623V7.14258H19.6621V8.8125H14.623V12H12.3145Z" fill="#CC3333"/>
+</g>
+<defs>
+<clipPath id="clip0_8410_3113">
+<rect width="32" height="16" fill="white"/>
+</clipPath>
+</defs>
+</svg>
diff --git a/resources/css/bem/score-rank.less b/resources/css/bem/score-rank.less
index c968de2affb..2e57d632fce 100644
--- a/resources/css/bem/score-rank.less
+++ b/resources/css/bem/score-rank.less
@@ -19,14 +19,15 @@
     background-image: url("~@images/badges/score-ranks-v2019/GradeSmall-@{filename}.svg?3");
   }
 
-  .all(XH, "SS-Silver");
-  .all(X, "SS");
-  .all(SH, "S-Silver");
-  .all(S, "S");
-  .all(A, "A");
-  .all(B, "B");
-  .all(C, "C");
-  .all(D, "D");
+  .all(~"XH", "SS-Silver");
+  .all(~"X", "SS");
+  .all(~"SH", "S-Silver");
+  .all(~"S", "S");
+  .all(~"A", "A");
+  .all(~"B", "B");
+  .all(~"C", "C");
+  .all(~"D", "D");
+  .all(~"F", "F");
 
   &--full {
     .full-size();
diff --git a/resources/js/interfaces/rank.ts b/resources/js/interfaces/rank.ts
index f3656ea7925..8854f71d616 100644
--- a/resources/js/interfaces/rank.ts
+++ b/resources/js/interfaces/rank.ts
@@ -1,6 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the GNU Affero General Public License v3.0.
 // See the LICENCE file in the repository root for full licence text.
 
-type Rank = 'A' | 'B' | 'C' | 'D' | 'S' | 'SH' | 'X' | 'XH';
+type Rank = 'A' | 'B' | 'C' | 'D' | 'F' | 'S' | 'SH' | 'X' | 'XH';
 
 export default Rank;
diff --git a/resources/js/scores-show/dial.tsx b/resources/js/scores-show/dial.tsx
index 5fe4a53435f..74638f5f756 100644
--- a/resources/js/scores-show/dial.tsx
+++ b/resources/js/scores-show/dial.tsx
@@ -17,6 +17,7 @@ const displayRank: Record<Rank, string> = {
   B: 'B',
   C: 'C',
   D: 'D',
+  F: 'F',
   S: 'S',
   SH: 'S',
   X: 'SS',
diff --git a/resources/js/scores-show/tower.tsx b/resources/js/scores-show/tower.tsx
index a6fd2901a9a..90878eab5f0 100644
--- a/resources/js/scores-show/tower.tsx
+++ b/resources/js/scores-show/tower.tsx
@@ -14,6 +14,7 @@ const rankIntMap: Record<Rank, number> = {
   B: 2,
   C: 1,
   D: 0,
+  F: -1,
   S: 4,
   SH: 4,
   X: 5,
diff --git a/tests/Models/Solo/ScoreTest.php b/tests/Models/Solo/ScoreTest.php
index aff52ab6b38..5f300cc4dfb 100644
--- a/tests/Models/Solo/ScoreTest.php
+++ b/tests/Models/Solo/ScoreTest.php
@@ -59,7 +59,7 @@ public function testLegacyPassScoreRetainsRank()
         $this->assertSame($legacy->rank, 'S');
     }
 
-    public function testLegacyFailScoreIsRankD()
+    public function testLegacyFailScoreIsRankF()
     {
         $score = Score::createFromJsonOrExplode([
             'accuracy' => 1,
@@ -76,12 +76,12 @@ public function testLegacyFailScoreIsRankD()
         ]);
 
         $this->assertFalse($score->data->passed);
-        $this->assertSame($score->data->rank, 'D');
+        $this->assertSame($score->data->rank, 'F');
 
         $legacy = $score->createLegacyEntryOrExplode();
 
         $this->assertFalse($legacy->perfect);
-        $this->assertSame($legacy->rank, 'D');
+        $this->assertSame($legacy->rank, 'F');
     }
 
     public function testLegacyScoreHitCounts()