diff --git a/rowers/templatetags/rowerfilters.py b/rowers/templatetags/rowerfilters.py
index af9fc57e..baa1646b 100644
--- a/rowers/templatetags/rowerfilters.py
+++ b/rowers/templatetags/rowerfilters.py
@@ -30,6 +30,8 @@ from rowers.utils import NoTokenError, step_to_string
 
 import rowers.payments as payments
 
+from rowsandall_app.settings import NK_VIEWER_LOCATION
+
 
 from rowers.opaque import encoder
 from rowers.plannedsessions import ps_dict_get_description_html
@@ -108,7 +110,9 @@ def adaptive(s):
 
 @register.filter
 def nkviewerlink(workout):
-    url = "https://viewer-stage.nkrowlink.com/workout-analysis/{nkid}".format(nkid=workout.uploadedtonk)
+    url = "{nkviewer}{nkid}".format(
+        nkid=workout.uploadedtonk,
+        nkviewer=NK_VIEWER_LOCATION)
 
     return url
 
diff --git a/rowers/views/importviews.py b/rowers/views/importviews.py
index 42f78a20..f0dcc5b4 100644
--- a/rowers/views/importviews.py
+++ b/rowers/views/importviews.py
@@ -844,6 +844,24 @@ def workout_nkimport_view(request,userid=0):
         return HttpResponseRedirect(url)
 
     # get NK IDs
+    nkids = [item['id'] for item in res.json()]
+    knownnkids = uniqify([
+        w.uploadedtonk for w in Workout.objects.filter(user=r)
+    ])
+    tombstones = [
+        t.uploadedtonk for t in TombStone.objects.filter(user=r)
+    ]
+    parkedids = []
+    try:
+        with open('nkblocked.json','r') as nkblocked:
+            jsondata = json.load(nkplocked)
+            parkedids = jsondata['ids']
+    except FileNotFoundError:
+        pass
+
+    knownnkids = uniqify(knownnkids+tombstones+parkedids)
+    newids = [nkid for nkid in nkids if not nkid in knownnkids]
+
 
     nkdata = [{
         'id':int(item['id']),
@@ -857,7 +875,10 @@ def workout_nkimport_view(request,userid=0):
         d = int(float(item['totalDistanceGps'])) # could also be Impeller
         i = item['id']
         n = item['name']
-        nnn = ''
+        if i in knownnkids:
+            nnn = ''
+        else:
+            nnn = 'NEW'
         ttot = str(datetime.timedelta(seconds=int(float(item['elapsedTime'])/1000.)))
         s = arrow.get(item['startTime'],tzinfo=r.defaulttimezone).format(arrow.FORMAT_RFC850)
         #s = arrow.get(item['startTime']).to(r.defaulttimezone).isoformat()
diff --git a/rowsandall_app/settings.py b/rowsandall_app/settings.py
index f6c45d9d..80e47a5f 100644
--- a/rowsandall_app/settings.py
+++ b/rowsandall_app/settings.py
@@ -333,6 +333,7 @@ NK_CLIENT_ID = CFG["nk_client_id"]
 NK_CLIENT_SECRET = CFG["nk_client_secret"]
 NK_REDIRECT_URI = CFG["nk_redirect_uri"]
 NK_API_LOCATION = CFG["nk_api_location"]
+NK_VIEWER_LOCATION = CFG["nk_viewer_location"]
 
 # Full Site URL
 SITE_URL = CFG['site_url']