diff --git a/docs/phpGPX-Models-Stats.md b/docs/phpGPX-Models-Stats.md
index fc185b5..8973f30 100644
--- a/docs/phpGPX-Models-Stats.md
+++ b/docs/phpGPX-Models-Stats.md
@@ -69,6 +69,16 @@ Maximal altitude in meters (m)
 
 
 
+* Visibility: **public**
+
+### $cumulativeElevationGain
+
+    public integer $cumulativeElevationGain = null
+
+Cumulative positive elevation gain in meters (m)
+
+
+
 * Visibility: **public**
 
 
diff --git a/src/phpGPX/Models/Route.php b/src/phpGPX/Models/Route.php
index f8bccd2..000c519 100644
--- a/src/phpGPX/Models/Route.php
+++ b/src/phpGPX/Models/Route.php
@@ -111,6 +111,18 @@ function recalculateStats()
 			$this->stats->distance += $this->points[$p]->difference;
 			$this->points[$p] = $this->stats->distance;
 		}
+		
+		if($this->stats->cumulativeElevationGain === null)
+		{
+			$lastElevation = $firstPoint->elevation;
+			$this->stats->cumulativeElevationGain = 0;
+		} 
+		else
+		{
+			$elevationDelta = $this->points[$p]->elevation - $lastElevation;
+			$this->stats->cumulativeElevationGain += ($elevationDelta > 0) ? $elevationDelta : 0;
+			$lastElevation = $this->points[$p]->elevation;
+		}
 
 		if ($this->stats->minAltitude == null)
 		{
@@ -142,4 +154,4 @@ function recalculateStats()
 			}
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/src/phpGPX/Models/Stats.php b/src/phpGPX/Models/Stats.php
index 708ee3b..daac348 100644
--- a/src/phpGPX/Models/Stats.php
+++ b/src/phpGPX/Models/Stats.php
@@ -46,6 +46,12 @@ class Stats implements Summarizable
 	 * @var int
 	 */
 	public $maxAltitude = null;
+	
+	/**
+	 * Cumulative elevation gain in meters (m)
+	 * @var int
+	 */
+	public $cumulativeElevationGain = null;
 
 	/**
 	 * Started time
@@ -75,6 +81,7 @@ public function reset()
 		$this->averagePace = null;
 		$this->minAltitude = null;
 		$this->maxAltitude = null;
+		$this->cumulativeElevationGain = null;
 		$this->startedAt = null;
 		$this->finishedAt = null;
 	}
@@ -91,9 +98,10 @@ function toArray()
 			'avgPace' => (double) $this->averagePace,
 			'minAltitude' => (double) $this->minAltitude,
 			'maxAltitude' => (double) $this->maxAltitude,
+			'cumulativeElevationGain' => (double) $this->cumulativeElevationGain,
 			'startedAt' => DateTimeHelper::formatDateTime($this->startedAt, phpGPX::$DATETIME_FORMAT, phpGPX::$DATETIME_TIMEZONE_OUTPUT),
 			'finishedAt' => DateTimeHelper::formatDateTime($this->finishedAt, phpGPX::$DATETIME_FORMAT, phpGPX::$DATETIME_TIMEZONE_OUTPUT),
 			'duration' => (double) $this->duration
 		];
 	}
-}
\ No newline at end of file
+}
diff --git a/src/phpGPX/Models/Track.php b/src/phpGPX/Models/Track.php
index cd2c2be..33f1bcb 100644
--- a/src/phpGPX/Models/Track.php
+++ b/src/phpGPX/Models/Track.php
@@ -118,6 +118,17 @@ function recalculateStats()
 				}
 				$this->stats->distance += $this->segments[$s]->points[$p]->difference;
 				$this->segments[$s]->points[$p]->distance = $this->stats->distance;
+
+				if($this->stats->cumulativeElevationGain === null)
+				{
+					$lastElevation = $firstPoint->elevation;
+					$this->stats->cumulativeElevationGain = 0;
+				}
+				else
+				{
+					$elevationDelta = $this->segments[$s]->points[$p]->elevation - $lastElevation;
+					$this->stats->cumulativeElevationGain += ($elevationDelta > 0) ? $elevationDelta : 0;                     $lastElevation = $this->segments[$s]->points[$p]->elevation;
+				}
 			}
 			if ($this->stats->minAltitude == null)
 			{
@@ -148,4 +159,4 @@ function recalculateStats()
 			}
 		}
 	}
-}
\ No newline at end of file
+}