diff --git a/actions/challenges.js b/actions/challenges.js
index 731f827f4..f0ad906ab 100755
--- a/actions/challenges.js
+++ b/actions/challenges.js
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2013 - 2014 TopCoder Inc., All Rights Reserved.
  *
- * @version 1.18
+ * @version 1.19
  * @author Sky_, mekanizumu, TCSASSEMBLER, freegod, Ghost_141, kurtrips, xjtufreeman, ecnu_haozi, hesibo, LazyChild
  * @changes from 1.0
  * merged with Member Registration API
@@ -44,6 +44,8 @@
  * add API for submitting to design challenge
  * changes in 1.18:
  * add clientSelection flag in studio results
+ * changes in 1.19:
+ * add new allowed sort columns.
  */
 "use strict";
 /*jslint stupid: true, unparam: true, continue: true */
@@ -90,7 +92,8 @@ var ALLOWABLE_QUERY_PARAMETER = [
  */
 var ALLOWABLE_SORT_COLUMN = [
     "challengeName", "challengeType", "challengeId", "cmcTaskId", "registrationEndDate",
-    "submissionEndDate", "finalFixEndDate", "prize1", "currentStatus", "digitalRunPoints"
+    "submissionEndDate", "finalFixEndDate", "prize1", "currentStatus", "digitalRunPoints",
+    "postingDate", "numSubmissions", "numRegistrants", "currentPhaseRemainingTime", "currentPhaseName", "registrationOpen"
 ];
 
 /**
@@ -357,7 +360,8 @@ function transferResult(src, helper) {
             digitalRunPoints: row.digital_run_points,
             prize: [],
             reliabilityBonus: helper.getReliabilityBonus(row.prize1),
-            challengeCommunity: row.is_studio ? 'design' : 'develop'
+            challengeCommunity: row.is_studio ? 'design' : 'develop',
+            registrationOpen: row.registration_open
         });
 
         for (i = 1; i < 10; i = i + 1) {
diff --git a/initializers/helper.js b/initializers/helper.js
index 853e4e42e..aa1cc0c7b 100644
--- a/initializers/helper.js
+++ b/initializers/helper.js
@@ -153,7 +153,13 @@ var apiName2dbNameMap = {
     numberofsubmissions: 'number_of_submissions',
     numberofreviewpositionsavailable: 'number_of_review_positions_available',
     round2scheduledstartdate: 'round_2_scheduled_start_date',
-    round1scheduledstartdate: 'round_1_scheduled_start_date'
+    round1scheduledstartdate: 'round_1_scheduled_start_date',
+    postingdate: 'posting_date',
+    numsubmissions: 'num_submissions',
+    numregistrants: 'num_registrants',
+    currentphaseremainingtime: 'current_phase_remaining_time',
+    currentphasename: 'current_phase_name',
+    registrationopen: 'registration_open'
 };
 
 /**
diff --git a/queries/search_software_studio_challenges b/queries/search_software_studio_challenges
index 53c98205d..67630c7bc 100644
--- a/queries/search_software_studio_challenges
+++ b/queries/search_software_studio_challenges
@@ -47,6 +47,7 @@ FIRST @pageSize@
      , (SELECT event_short_desc from event e where e.event_id = nvl((SELECT max(event_id) from contest_project_xref x, contest c where project_id = p.project_id and c.contest_id = x.contest_id), 0)) as event_name
      , technology_list(pi1.value) AS technology
      , platform_list(p.project_id) as platforms
+     , CASE WHEN (pp1.phase_status_id = 2) THEN 'Yes' ELSE 'No' END AS registration_open
   FROM project p
      , project_status_lu pstatus
      , project_phase pp1 --registration phase