diff --git a/plugins/wporg-5ftf/includes/pledge-meta.php b/plugins/wporg-5ftf/includes/pledge-meta.php
index f37868a..9f8a4a9 100755
--- a/plugins/wporg-5ftf/includes/pledge-meta.php
+++ b/plugins/wporg-5ftf/includes/pledge-meta.php
@@ -6,9 +6,7 @@
 namespace WordPressDotOrg\FiveForTheFuture\PledgeMeta;
 
 use WordPressDotOrg\FiveForTheFuture;
-use WordPressDotOrg\FiveForTheFuture\Pledge;
-use WordPressDotOrg\FiveForTheFuture\PledgeForm;
-use WordPressDotOrg\FiveForTheFuture\Contributor;
+use WordPressDotOrg\FiveForTheFuture\{ Pledge, PledgeForm, Contributor, XProfile };
 use WP_Post, WP_Error;
 
 defined( 'WPINC' ) || die();
@@ -19,7 +17,7 @@ add_action( 'init',                   __NAMESPACE__ . '\register_pledge_meta' );
 add_action( 'admin_init',             __NAMESPACE__ . '\add_meta_boxes' );
 add_action( 'save_post',              __NAMESPACE__ . '\save_pledge', 10, 2 );
 add_action( 'admin_enqueue_scripts',  __NAMESPACE__ . '\enqueue_assets' );
-add_action( 'transition_post_status', __NAMESPACE__ . '\update_confirmed_contributor_count', 10, 3 );
+add_action( 'transition_post_status', __NAMESPACE__ . '\update_cached_pledge_data', 10, 3 );
 
 // Both hooks must be used because `updated` doesn't fire if the post meta didn't previously exist.
 add_action( 'updated_postmeta', __NAMESPACE__ . '\update_generated_meta', 10, 4 );
@@ -76,6 +74,11 @@ function get_pledge_meta_config( $context = 'all' ) {
 			'sanitize_callback' => 'absint',
 			'show_in_rest'      => false,
 		),
+		'pledge-total-hours' => array(
+			'single'            => true,
+			'sanitize_callback' => 'absint',
+			'show_in_rest'      => false,
+		),
 	);
 
 	switch ( $context ) {
@@ -318,7 +321,9 @@ function update_generated_meta( $meta_id, $object_id, $meta_key, $_meta_value )
 }
 
 /**
- * Update the cached count of confirmed contributors for a pledge when a contributor post changes statuses.
+ * Update cached pledge data when a contributor post changes statuses.
+ *
+ * This is saved so that it can be easily queried against, and also to make stats calculations easier.
  *
  * Note that contributor posts should always be trashed instead of deleted completely when a contributor is
  * removed from a pledge.
@@ -329,7 +334,7 @@ function update_generated_meta( $meta_id, $object_id, $meta_key, $_meta_value )
  *
  * @return void
  */
-function update_confirmed_contributor_count( $new_status, $old_status, WP_Post $post ) {
+function update_cached_pledge_data( $new_status, $old_status, WP_Post $post ) {
 	if ( Contributor\CPT_ID !== get_post_type( $post ) ) {
 		return;
 	}
@@ -341,9 +346,11 @@ function update_confirmed_contributor_count( $new_status, $old_status, WP_Post $
 	$pledge = get_post( $post->post_parent );
 
 	if ( $pledge instanceof WP_Post ) {
-		$confirmed_contributors = Contributor\get_pledge_contributors( $pledge->ID, 'publish' );
+		$pledge_data = XProfile\get_aggregate_contributor_data_for_pledge( $pledge->ID );
+
+		update_post_meta( $pledge->ID, META_PREFIX . 'pledge-confirmed-contributors', $pledge_data['contributors'] );
+		update_post_meta( $pledge->ID, META_PREFIX . 'pledge-total-hours', $pledge_data['hours'] );
 
-		update_post_meta( $pledge->ID, META_PREFIX . 'pledge-confirmed-contributors', count( $confirmed_contributors ) );
 	}
 }
 
diff --git a/plugins/wporg-5ftf/includes/pledge.php b/plugins/wporg-5ftf/includes/pledge.php
index dfd390b..5ab4148 100755
--- a/plugins/wporg-5ftf/includes/pledge.php
+++ b/plugins/wporg-5ftf/includes/pledge.php
@@ -225,6 +225,7 @@ function filter_query( $query ) {
 	}
 
 	$contributor_count_key = META_PREFIX . 'pledge-confirmed-contributors';
+	$hours_count_key       = META_PREFIX . 'pledge-total-hours';
 
 	// Set up meta queries to include the "valid pledge" check, added to both search and pledge archive requests.
 	$meta_queries = (array) $query->get( 'meta_query' );
@@ -246,14 +247,15 @@ function filter_query( $query ) {
 		// Archives should only show pledges with contributors.
 		$query->set( 'meta_query', $meta_queries );
 		$order = isset( $_GET['order'] ) ? $_GET['order'] : '';
+
 		switch ( $order ) {
 			case 'alphabetical':
 				$query->set( 'orderby', 'name' );
 				$query->set( 'order', 'ASC' );
 				break;
 
-			case 'contributors':
-				$query->set( 'meta_key', $contributor_count_key );
+			case 'hours':
+				$query->set( 'meta_key', $hours_count_key );
 				$query->set( 'orderby', 'meta_value_num' );
 				$query->set( 'order', 'DESC' );
 				break;
diff --git a/plugins/wporg-5ftf/includes/xprofile.php b/plugins/wporg-5ftf/includes/xprofile.php
index 946e46a..2f31a6e 100644
--- a/plugins/wporg-5ftf/includes/xprofile.php
+++ b/plugins/wporg-5ftf/includes/xprofile.php
@@ -76,7 +76,7 @@ function get_aggregate_contributor_data_for_pledge( $pledge_id ) {
 				break;
 
 			case 30: // Teams.
-				$value          = maybe_unserialize( $item['value'] );
+				$value          = (array) maybe_unserialize( $item['value'] );
 				$carry['teams'] = array_merge( $carry['teams'], $value );
 				break;
 		}
diff --git a/themes/wporg-5ftf/archive-5ftf_pledge.php b/themes/wporg-5ftf/archive-5ftf_pledge.php
index 087c7f4..2f76727 100644
--- a/themes/wporg-5ftf/archive-5ftf_pledge.php
+++ b/themes/wporg-5ftf/archive-5ftf_pledge.php
@@ -37,8 +37,8 @@ get_header(); ?>
 						<option value="alphabetical" <?php selected( $pledge_order, 'alphabetical' ); ?>>
 							<?php esc_html_e( 'Alphabetical', 'wordpressorg' ); ?>
 						</option>
-						<option value="contributors" <?php selected( $pledge_order, 'contributors' ); ?>>
-							<?php esc_html_e( 'Total Contributors', 'wordpressorg' ); ?>
+						<option value="hours" <?php selected( $pledge_order, 'hours' ); ?>>
+							<?php esc_html_e( 'Total Hours', 'wordpressorg' ); ?>
 						</option>
 					</select>
 					<span class="screen-reader-text">
diff --git a/themes/wporg-5ftf/template-parts/content-5ftf_pledge.php b/themes/wporg-5ftf/template-parts/content-5ftf_pledge.php
index 0f8e565..1d49a13 100644
--- a/themes/wporg-5ftf/template-parts/content-5ftf_pledge.php
+++ b/themes/wporg-5ftf/template-parts/content-5ftf_pledge.php
@@ -5,9 +5,9 @@
 
 namespace WordPressdotorg\Five_for_the_Future\Theme;
 
-use WordPressDotOrg\FiveForTheFuture\Contributor;
-use WordPressDotOrg\FiveForTheFuture\PledgeMeta;
+use WordPressDotOrg\FiveForTheFuture\{Contributor, PledgeMeta };
 
+$pledge = get_post();
 $data = array();
 
 foreach ( PledgeMeta\get_pledge_meta_config() as $key => $config ) {
@@ -15,7 +15,6 @@ foreach ( PledgeMeta\get_pledge_meta_config() as $key => $config ) {
 }
 
 $contributors = Contributor\get_pledge_contributors( get_the_ID() );
-$count        = count( $contributors );
 
 $allowed_html = array_merge(
 	wp_kses_allowed_html( 'data' ),
@@ -36,12 +35,14 @@ $content = apply_filters( 'the_content', $data['org-description'] );
 $content = strip_tags( $content );
 $content = wp_trim_words( $content, 55, $more );
 
+$total_hours = $pledge->{ PledgeMeta\META_PREFIX . 'pledge-total-hours' };
+
 $contributor_title = sprintf(
 	esc_html(
-		_n( '%1$s has pledged %2$d contributor', '%1$s has pledged %2$d contributors', $count, 'wordpressorg' )
+		_n( '%1$s has pledged %2$d hour', '%1$s has pledged %2$d hours', $total_hours, 'wordpressorg' )
 	),
 	wp_kses_post( get_the_title() ),
-	intval( $count )
+	intval( $total_hours )
 );
 ?>