diff --git a/cronjobs/statistics.php b/cronjobs/statistics.php
index eefa9d70..69c1db5f 100755
--- a/cronjobs/statistics.php
+++ b/cronjobs/statistics.php
@@ -30,32 +30,39 @@ verbose("Running statistical cache updates\n");
 
 // Since fetching from cache is disabled, overwrite our stats
 verbose("  getRoundShares ...");
+$start = microtime(true);
 if (!$statistics->getRoundShares())
   verbose(" update failed");
-verbose("\n  getTopContributors shares ...");
+verbose(" " . number_format(microtime(true) - $start, 2) . " seconds\n");
+verbose("  getTopContributors shares ...");
+$start = microtime(true);
 if (!$statistics->getTopContributors('shares'))
   verbose(" update failed");
-verbose("\n  getTopContributors hashes ...");
+verbose(" " . number_format(microtime(true) - $start, 2) . " seconds\n");
+verbose("  getTopContributors hashes ...");
+$start = microtime(true);
 if (!$statistics->getTopContributors('hashes'))
   verbose(" update failed");
-verbose("\n  getCurrentHashrate ...");
+verbose(" " . number_format(microtime(true) - $start, 2) . " seconds\n");
+verbose("  getCurrentHashrate ...");
+$start = microtime(true);
 if (!$statistics->getCurrentHashrate())
   verbose(" update failed");
+verbose(" " . number_format(microtime(true) - $start, 2) . " seconds\n");
 // Admin specific statistics, we cache the global query due to slowness
-verbose("\n  getAllUserStats ...");
+verbose("  getAllUserStats ...");
+$start = microtime(true);
 if (!$statistics->getAllUserStats('%'))
   verbose(" update failed");
-verbose("\n");
+verbose(" " . number_format(microtime(true) - $start, 2) . " seconds\n");
 
 // Per user share statistics based on all shares submitted
-verbose("  getUserShares ...\n");
-$stmt = $mysqli->prepare("SELECT DISTINCT SUBSTRING_INDEX( `username` , '.', 1 ) AS username FROM " . $share->getTableName());
-if ($stmt && $stmt->execute() && $result = $stmt->get_result()) {
-  while ($row = $result->fetch_assoc()) {
-    verbose("    " . $row['username'] . " ...");
-    if (!$statistics->getUserShares($user->getUserId($row['username'])))
-      verbose(" update failed");
-    verbose("\n");
-  }
+verbose("  getAllUserShares ...");
+$start = microtime(true);
+$aUserShares = $statistics->getAllUserShares();
+verbose(" " . number_format(microtime(true) - $start, 2) . " seconds");
+foreach ($aUserShares as $aShares) {
+  $memcache->setCache('getUserShares'. $aShares['id'], $aShares);
 }
+verbose("\n");
 ?>
diff --git a/public/include/classes/statistics.class.php b/public/include/classes/statistics.class.php
index 43529e81..50fd55a8 100644
--- a/public/include/classes/statistics.class.php
+++ b/public/include/classes/statistics.class.php
@@ -145,6 +145,34 @@ class Statistics {
     return false;
   }
 
+  /**
+   * Get amount of shares for a all users
+   * Used in statistics cron to refresh memcache data
+   * @param account_id int User ID
+   * @return data array invalid and valid share counts
+   **/
+  public function getAllUserShares() {
+    $this->debug->append("STA " . __METHOD__, 4);
+    if ($this->getGetCache() && $data = $this->memcache->get(__FUNCTION__)) return $data;
+    $stmt = $this->mysqli->prepare("
+      SELECT
+        SUM(IF(our_result='Y', 1, 0)) AS valid,
+          SUM(IF(our_result='N', 1, 0)) AS invalid,
+          u.id AS id,
+          u.username AS username
+      FROM " . $this->share->getTableName() . " AS s,
+             " . $this->user->getTableName() . " AS u
+      WHERE
+        u.username = SUBSTRING_INDEX( s.username, '.', 1 )
+        AND UNIX_TIMESTAMP(s.time) >IFNULL((SELECT MAX(b.time) FROM " . $this->block->getTableName() . " AS b),0)
+      GROUP BY u.id");
+    if ($stmt && $stmt->execute() && $result = $stmt->get_result())
+      return $this->memcache->setCache(__FUNCTION__, $result->fetch_all(MYSQLI_ASSOC));
+    // Catchall
+    $this->debug->append("Unable to fetch all users round shares: " . $this->mysqli->error);
+    return false;
+  }
+
   /**
    * Get amount of shares for a specific user
    * @param account_id int User ID