diff --git a/includes/cli/backfillers/class-reader-registered.php b/includes/cli/backfillers/class-reader-registered.php
index cbd5928b..8a84133a 100644
--- a/includes/cli/backfillers/class-reader-registered.php
+++ b/includes/cli/backfillers/class-reader-registered.php
@@ -53,6 +53,22 @@ public function get_events() {
 
 		$events = [];
 
+		// Disregard `current_page_url` metadata when checking for duplicates of reader registrations.
+		// This metadata is unavailable for backfilled events, so it's not possible to check for duplicates with it.
+		add_filter(
+			'newspack_network_event_log_get_args',
+			function( $args ) {
+				if ( $args['action_name'] === 'reader_registered' && isset( $args['data'] ) ) {
+					$data = json_decode( $args['data'], true );
+					if ( isset( $data['metadata']['current_page_url'] ) ) {
+						unset( $data['metadata']['current_page_url'] );
+					}
+					$args['data'] = wp_json_encode( $data );
+				}
+				return $args;
+			}
+		);
+
 		foreach ( $users as $user ) {
 			$registration_method = get_user_meta( $user->ID, \Newspack\Reader_Activation::REGISTRATION_METHOD, true );
 			$user_data = [
diff --git a/includes/hub/stores/class-event-log.php b/includes/hub/stores/class-event-log.php
index 08d4ae0b..f669d0d7 100644
--- a/includes/hub/stores/class-event-log.php
+++ b/includes/hub/stores/class-event-log.php
@@ -39,6 +39,7 @@ public static function get( $args, $per_page = 10, $page = 1, $order = 'DESC' )
 
 		$query = $wpdb->prepare( "SELECT * FROM $table_name WHERE 1=1 [args] $order_string LIMIT %d OFFSET %d", $per_page, $offset ); //phpcs:ignore
 
+		$args = apply_filters( 'newspack_network_event_log_get_args', $args );
 		$query = str_replace( '[args]', self::build_where_clause( $args ), $query );
 
 		$db = $wpdb->get_results( $query ); //phpcs:ignore