diff --git a/api/v1/api.js b/api/v1/api.js
index 542d206..8a81bcd 100644
--- a/api/v1/api.js
+++ b/api/v1/api.js
@@ -13,16 +13,21 @@ module.exports = {
                 }
                 // console.log(rows);
                 let polygons = []
+                let polygonDict = {};
                 rows[0].map((point) => {
-                    let polygon = {};
-                    polygon.coords = [];
-                    polygon.polygonID = point.polygonID;
-                    polygon.coords.push({lat: point.lat, lng: point.lng});
-                    polygon.gameID = point.gameID;
-                    polygon.userID = point.userID;
-                    polygon.colour = point.colour;
-                    polygons.push(polygon);
+                    if (!(point.polygonID in polygonDict)) {
+                        polygonDict[point.polygonID] = {};
+                        polygonDict[point.polygonID].coords = [];
+                        polygonDict[point.polygonID].gameID = point.gameID;
+                        polygonDict[point.polygonID].userID = point.userID;
+                        polygonDict[point.polygonID].colour = point.colour;
+                        polygonDict[point.polygonID].polygonID = point.polygonID;
+                    }
+                    polygonDict[point.polygonID].coords.push({lat: point.lat, lng: point.lng});
                 });
+                for (let [polygon, polygonData] of Object.entries(polygonDict)){
+                    polygons.push(polygonDict[polygon]);
+                }
                 res.send(polygons);
                 return;
             });