diff --git a/frontend/src/Activity/History/HistoryRow.js b/frontend/src/Activity/History/HistoryRow.js
index d294b1ec4..e14936e42 100644
--- a/frontend/src/Activity/History/HistoryRow.js
+++ b/frontend/src/Activity/History/HistoryRow.js
@@ -4,12 +4,13 @@ import IconButton from 'Components/Link/IconButton';
 import RelativeDateCellConnector from 'Components/Table/Cells/RelativeDateCellConnector';
 import TableRowCell from 'Components/Table/Cells/TableRowCell';
 import TableRow from 'Components/Table/TableRow';
-import { icons } from 'Helpers/Props';
+import Tooltip from 'Components/Tooltip/Tooltip';
+import { icons, tooltipPositions } from 'Helpers/Props';
 import MovieFormats from 'Movie/MovieFormats';
 import MovieLanguage from 'Movie/MovieLanguage';
 import MovieQuality from 'Movie/MovieQuality';
 import MovieTitleLink from 'Movie/MovieTitleLink';
-import formatCustomFormatScore from 'Utilities/Number/formatCustomFormatScore';
+import formatPreferredWordScore from 'Utilities/Number/formatPreferredWordScore';
 import HistoryDetailsModal from './Details/HistoryDetailsModal';
 import HistoryEventTypeCell from './HistoryEventTypeCell';
 import styles from './HistoryRow.css';
@@ -176,7 +177,14 @@ class HistoryRow extends Component {
                   key={name}
                   className={styles.customFormatScore}
                 >
-                  {formatCustomFormatScore(customFormatScore)}
+                  <Tooltip
+                    anchor={formatPreferredWordScore(
+                      customFormatScore,
+                      customFormats.length
+                    )}
+                    tooltip={<MovieFormats formats={customFormats} />}
+                    position={tooltipPositions.BOTTOM}
+                  />
                 </TableRowCell>
               );
             }
@@ -257,4 +265,8 @@ HistoryRow.propTypes = {
   onMarkAsFailedPress: PropTypes.func.isRequired
 };
 
+HistoryRow.defaultProps = {
+  customFormats: []
+};
+
 export default HistoryRow;
diff --git a/frontend/src/Activity/Queue/QueueRow.js b/frontend/src/Activity/Queue/QueueRow.js
index 3aeff169c..419ac0b38 100644
--- a/frontend/src/Activity/Queue/QueueRow.js
+++ b/frontend/src/Activity/Queue/QueueRow.js
@@ -8,7 +8,8 @@ import ProgressBar from 'Components/ProgressBar';
 import TableRowCell from 'Components/Table/Cells/TableRowCell';
 import TableSelectCell from 'Components/Table/Cells/TableSelectCell';
 import TableRow from 'Components/Table/TableRow';
-import { icons, kinds } from 'Helpers/Props';
+import Tooltip from 'Components/Tooltip/Tooltip';
+import { icons, kinds, tooltipPositions } from 'Helpers/Props';
 import InteractiveImportModal from 'InteractiveImport/InteractiveImportModal';
 import MovieFormats from 'Movie/MovieFormats';
 import MovieLanguage from 'Movie/MovieLanguage';
@@ -209,7 +210,14 @@ class QueueRow extends Component {
                   key={name}
                   className={styles.customFormatScore}
                 >
-                  {formatPreferredWordScore(customFormatScore)}
+                  <Tooltip
+                    anchor={formatPreferredWordScore(
+                      customFormatScore,
+                      customFormats.length
+                    )}
+                    tooltip={<MovieFormats formats={customFormats} />}
+                    position={tooltipPositions.BOTTOM}
+                  />
                 </TableRowCell>
               );
             }
@@ -404,6 +412,7 @@ QueueRow.propTypes = {
 };
 
 QueueRow.defaultProps = {
+  customFormats: [],
   isGrabbing: false,
   isRemoving: false
 };