diff --git a/public/js/buildings/arena.js b/public/js/buildings/arena.js
index 1f8ef69..31e7fa7 100644
--- a/public/js/buildings/arena.js
+++ b/public/js/buildings/arena.js
@@ -40,7 +40,8 @@ function initArenaModes() {
     card.addEventListener("click", () => {
       const mode = card.dataset.mode;
       if (mode === "1v1") {
-        window.location.href = "/arena/1v1";
+        const tab = window.open("/arena/1v1", "_blank");
+        tab?.focus();
       } else {
         console.log("Arena Modus gewählt:", mode);
       }