diff --git a/app/database.py b/app/database.py
index c7ac77d..208f943 100644
--- a/app/database.py
+++ b/app/database.py
@@ -115,6 +115,18 @@ def upsert_player(p):
     conn.close()
 
 
+def delete_players_not_in(ids):
+    if not ids:
+        return 0
+    placeholders = ','.join('?' * len(ids))
+    conn = _conn()
+    cur = conn.execute(f'DELETE FROM players WHERE id NOT IN ({placeholders})', ids)
+    deleted = cur.rowcount
+    conn.commit()
+    conn.close()
+    return deleted
+
+
 def get_all_players():
     conn = _conn()
     rows = conn.execute('SELECT * FROM players ORDER BY name').fetchall()
diff --git a/app/scheduler.py b/app/scheduler.py
index 3ad49ea..9780acb 100644
--- a/app/scheduler.py
+++ b/app/scheduler.py
@@ -14,8 +14,12 @@ def poll_yodeck():
         players = yd.get_all_screens()
         for p in players:
             db.upsert_player(p)
+        current_ids = [p['id'] for p in players]
+        removed = db.delete_players_not_in(current_ids)
         msg = f"Fetched {len(players)} players from Yodeck API"
-        db.add_log('yodeck_fetch', msg, {'count': len(players)})
+        if removed:
+            msg += f", removed {removed} deleted player(s)"
+        db.add_log('yodeck_fetch', msg, {'count': len(players), 'removed': removed})
         log.info(msg)
         # Sync host list to Zabbix after a successful fetch
         sync_to_zabbix(players, db.add_log)
diff --git a/app/zabbix.py b/app/zabbix.py
index 23622bc..02ae6cd 100644
--- a/app/zabbix.py
+++ b/app/zabbix.py
@@ -117,6 +117,9 @@ class ZabbixClient:
     def update_host_name(self, hostid, visible_name):
         self._call('host.update', {'hostid': hostid, 'name': visible_name})
 
+    def delete_hosts(self, hostids):
+        self._call('host.delete', hostids)
+
     # ------------------------------------------------------------------ templates
 
     def get_template_id(self, name):
@@ -260,10 +263,23 @@ def sync_to_zabbix(players, add_log_fn):
                 log.warning("Skipped host %s: %s", hostname, exc)
                 skipped += 1
 
+        current_hostnames = {f"yodeck-{p['id']}" for p in players}
+        stale = [h for h in existing.values() if h['host'] not in current_hostnames]
+        deleted = 0
+        for h in stale:
+            try:
+                zbx.delete_hosts([h['hostid']])
+                deleted += 1
+                log.info("Deleted stale Zabbix host: %s", h['host'])
+            except Exception as exc:
+                log.warning("Could not delete host %s: %s", h['host'], exc)
+                skipped += 1
+
         msg = (f"Zabbix sync complete: {created} created, {updated} updated"
+               + (f", {deleted} deleted" if deleted else "")
                + (f", {skipped} skipped" if skipped else "")
                + f" ({len(players)} total)")
-        add_log_fn('zabbix_sync', msg, {'created': created, 'updated': updated, 'total': len(players)})
+        add_log_fn('zabbix_sync', msg, {'created': created, 'updated': updated, 'deleted': deleted, 'total': len(players)})
         log.info(msg)
 
     except Exception as exc: