From b445f2f301fa1b90c8567173c9628a1c5b671602 Mon Sep 17 00:00:00 2001
From: Jeroen De Meerleer <me@jeroened.be>
Date: Fri, 27 Sep 2019 18:02:43 +0200
Subject: [PATCH] BUGFIX: Tournament::calculateAverageRating() returned NaN if
 no games

---
 CHANGELOG.md       | 1 +
 src/Tournament.php | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c458ccc..c6788b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 * BUGFIX: `Tournament::calculateBuchholz()` did not return the correct score when player had unplayed rounds
 * BUGFIX: `Tournament::calculateMutualResult()` returned NULL if result was invalid
 * BUGFIX: `Tournament::calculateBaumbach()` treated bye as won
+* BUGFIX: `Tournament::calculateAverageRating()` returned NaN if no games were played
 
 ## v1.1.2 (Release: 21-jun-2019)
 * ENHANCEMENT: Added update section to dist/readme.md
diff --git a/src/Tournament.php b/src/Tournament.php
index cf06cb7..f5b53be 100644
--- a/src/Tournament.php
+++ b/src/Tournament.php
@@ -650,7 +650,11 @@ class Tournament
         }
         sort($allratings);
         $allratings = array_slice($allratings, $cut);
-        return round(array_sum($allratings) / count($allratings));
+        $tiebreak = 0;
+        if (count($allratings) > 0) {
+            $tiebreak = round(array_sum($allratings) / count($allratings));
+        }
+        return $tiebreak;
     }