diff --git a/src/camera-manager/frigate/types.ts b/src/camera-manager/frigate/types.ts
index ef18041c..d9ef207d 100644
--- a/src/camera-manager/frigate/types.ts
+++ b/src/camera-manager/frigate/types.ts
@@ -21,7 +21,7 @@ const eventSchema = z.object({
   label: z.string(),
   sub_label: z.string().nullable(),
   start_time: z.number(),
-  top_score: z.number(),
+  top_score: z.number().nullable(),
   zones: z.string().array(),
   retain_indefinitely: z.boolean().optional(),
 });
diff --git a/src/camera-manager/frigate/util.ts b/src/camera-manager/frigate/util.ts
index 0be47429..24c8f532 100644
--- a/src/camera-manager/frigate/util.ts
+++ b/src/camera-manager/frigate/util.ts
@@ -14,11 +14,11 @@ export const getEventTitle = (event: FrigateEvent): string => {
       ? event.end_time - event.start_time
       : Date.now() / 1000 - event.start_time,
   );
+  const score = event.top_score !== null ? ` ${Math.round(event.top_score * 100)}%` : '';
+
   return `${formatDateAndTime(
     utcToZonedTime(event.start_time * 1000, localTimezone),
-  )} [${durationSeconds}s, ${prettifyTitle(event.label)} ${Math.round(
-    event.top_score * 100,
-  )}%]`;
+  )} [${durationSeconds}s, ${prettifyTitle(event.label)}${score}]`;
 };
 
 export const getRecordingTitle = (
@@ -93,5 +93,5 @@ export const getRecordingID = (
   // can be dedup'd from this id.
   return `${cameraConfig.frigate?.client_id ?? ''}/${
     cameraConfig.frigate.camera_name ?? ''
-  }/${recording.startTime.getTime()}/${recording.endTime.getTime()}}`;
+  }/${recording.startTime.getTime()}/${recording.endTime.getTime()}`;
 };
diff --git a/tests/camera-manager/frigate/util.test.ts b/tests/camera-manager/frigate/util.test.ts
new file mode 100644
index 00000000..b47557b5
--- /dev/null
+++ b/tests/camera-manager/frigate/util.test.ts
@@ -0,0 +1,154 @@
+import add from 'date-fns/add';
+import { afterEach, describe, expect, it, vi } from 'vitest';
+import { mock } from 'vitest-mock-extended';
+import {
+  getEventMediaContentID,
+  getEventThumbnailURL,
+  getEventTitle,
+  getRecordingID,
+  getRecordingMediaContentID,
+  getRecordingTitle,
+} from '../../../src/camera-manager/frigate/util';
+import { CameraConfig } from '../../../src/types';
+import {
+  createCameraConfig,
+  createFrigateEvent,
+  createFrigateRecording,
+} from '../../test-utils';
+
+describe('getEventTitle', () => {
+  const start = new Date('2023-05-06T10:43:00');
+  const end = new Date('2023-05-06T10:44:12');
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+  it('should get finished event title', () => {
+    expect(
+      getEventTitle(
+        createFrigateEvent({
+          start_time: start.getTime() / 1000,
+          end_time: end.getTime() / 1000,
+          top_score: 0.841796875,
+          label: 'person',
+        }),
+      ),
+    ).toBe('2023-05-06 10:43 [72s, Person 84%]');
+  });
+  it('should get in-progress event title', () => {
+    vi.useFakeTimers();
+    vi.setSystemTime(add(start, { seconds: 60 }));
+
+    expect(
+      getEventTitle(
+        createFrigateEvent({
+          start_time: start.getTime() / 1000,
+          end_time: null,
+          top_score: 0.841796875,
+          label: 'person',
+        }),
+      ),
+    ).toBe('2023-05-06 10:43 [60s, Person 84%]');
+  });
+  it('should get scoreless event title', () => {
+    expect(
+      getEventTitle(
+        createFrigateEvent({
+          start_time: start.getTime() / 1000,
+          end_time: end.getTime() / 1000,
+          top_score: null,
+          label: 'person',
+        }),
+      ),
+    ).toBe('2023-05-06 10:43 [72s, Person]');
+  });
+});
+
+describe('getRecordingTitle', () => {
+  it('should get recording title', () => {
+    expect(
+      getRecordingTitle(
+        'Kitchen',
+        createFrigateRecording({
+          startTime: new Date('2023-04-29T14:00:00'),
+        }),
+      ),
+    ).toBe('Kitchen 2023-04-29 14:00');
+  });
+});
+
+describe('getEventThumbnailURL', () => {
+  it('should get thumbnail URL', () => {
+    expect(
+      getEventThumbnailURL(
+        'clientid',
+        createFrigateEvent({
+          id: '1683396875.643998-hmzrh5',
+        }),
+      ),
+    ).toBe('/api/frigate/clientid/thumbnail/1683396875.643998-hmzrh5');
+  });
+});
+
+describe('getEventMediaContentID', () => {
+  it('should get event content ID', () => {
+    expect(
+      getEventMediaContentID(
+        'clientid',
+        'kitchen',
+        createFrigateEvent({
+          id: '1683396875.643998-hmzrh5',
+        }),
+        'clips',
+      ),
+    ).toBe(
+      'media-source://frigate/clientid/event/clips/kitchen/1683396875.643998-hmzrh5',
+    );
+  });
+});
+
+describe('getRecordingMediaContentID', () => {
+  it('should get recording content ID', () => {
+    expect(
+      getRecordingMediaContentID(
+        'clientid',
+        'kitchen',
+        createFrigateRecording({
+          startTime: new Date('2023-04-29T14:00:00'),
+        }),
+      ),
+    ).toBe('media-source://frigate/clientid/recordings/kitchen/2023-04-29/14');
+  });
+});
+
+describe('getRecordingID', () => {
+  it('should get recording ID', () => {
+    expect(
+      getRecordingID(
+        createCameraConfig({
+          frigate: {
+            client_id: 'unique_client_id',
+            camera_name: 'kitchen',
+          },
+        }),
+        createFrigateRecording({
+          startTime: new Date('2023-04-29T14:00:00Z'),
+          endTime: new Date('2023-04-29T14:59:59Z'),
+        }),
+      ),
+    ).toBe('unique_client_id/kitchen/1682776800000/1682780399000');
+  });
+  it('should get recording ID without client_id or camera_name', () => {
+    // Note: This path is defended against in the code but should not happen in
+    // practice as this would be a malformed (not-zod-parsed) camera config.
+    const cameraConfig = mock<CameraConfig>();
+    expect(
+      getRecordingID(
+        cameraConfig,
+        createFrigateRecording({
+          startTime: new Date('2023-04-29T14:00:00Z'),
+          endTime: new Date('2023-04-29T14:59:59Z'),
+        }),
+      ),
+    ).toBe('//1682776800000/1682780399000');
+  });
+});
diff --git a/tests/test-utils.ts b/tests/test-utils.ts
index 7e14ebdc..dcc71536 100644
--- a/tests/test-utils.ts
+++ b/tests/test-utils.ts
@@ -1,6 +1,7 @@
 import { HomeAssistant } from 'custom-card-helpers';
 import { HassEntities, HassEntity } from 'home-assistant-js-websocket';
 import { mock } from 'vitest-mock-extended';
+import { FrigateEvent, FrigateRecording } from '../src/camera-manager/frigate/types';
 import {
   CameraConfig,
   FrigateCardCondition,
@@ -60,3 +61,31 @@ export const createStateEntity = (entity?: Partial<HassEntity>): HassEntity => {
     },
   };
 };
+
+export const createFrigateEvent = (event?: Partial<FrigateEvent>) => {
+  return {
+    camera: 'camera',
+    end_time: 1683397124,
+    false_positive: false,
+    has_clip: true,
+    has_snapshot: true,
+    id: '1683396875.643998-hmzrh5',
+    label: 'person',
+    sub_label: null,
+    start_time: 1683395000,
+    top_score: 0.841796875,
+    zones: [],
+    retain_indefinitely: false,
+    ...event,
+  };
+};
+
+export const createFrigateRecording = (recording?: Partial<FrigateRecording>) => {
+  return {
+    cameraID: 'cameraID',
+    startTime: new Date('2023-04-29T14:00:00'),
+    endTime: new Date('2023-04-29T14:59:59'),
+    events: 42,
+    ...recording,
+  };
+};