diff --git a/OWTrack/Tracker.cs b/OWTrack/Tracker.cs
index 5bc5e5d..e653e77 100644
--- a/OWTrack/Tracker.cs
+++ b/OWTrack/Tracker.cs
@@ -174,7 +174,7 @@ namespace OWTrack
 
     class Session
     {
-        public int wins, losses;
+        public int wins, losses = 0;
         public int TotalMatches;
         public int SkillChange;
         public int StartSR;
@@ -182,7 +182,7 @@ namespace OWTrack
         public List<Match> Matches = new List<Match>();
 
         /// <summary>
-        /// Start a new session with a starting Skill Rating
+        /// Start a new session
         ///</summary>
         public Session(int StartSR)
         {
@@ -191,17 +191,29 @@ namespace OWTrack
             TotalMatches = 0;
         }
 
+        /// <summary>
+        /// Check if session does not have any matches
+        /// </summary>
+        /// <returns>Booelan</returns>
         public bool IsNewSession()
         {
             if (Matches.Count == 0) return true;
             else return false;
         }
 
+        /// <summary>
+        /// Get last match in Matchs list
+        /// </summary>
+        /// <returns>Match</returns>
         public Match GetLastMatch()
         {
             return Matches.Last();
         }
 
+        /// <summary>
+        /// Add Match to list
+        /// </summary>
+        /// <param name="match"></param>
         public void AddMatch(Match match)
         {
             match.LastMatchSR = this.Matches.Last().newSR;