diff --git a/stade/core/models/task.py b/stade/core/models/task.py
index f4b32b3f..9676626d 100644
--- a/stade/core/models/task.py
+++ b/stade/core/models/task.py
@@ -79,6 +79,16 @@ class MetricField(models.TextChoices):
     def __str__(self):
         return f'{self.challenge.name}: {self.name}'
 
+    @property
+    def submission_timespan(self):
+        submissions = Submission.objects.filter(approach__task=self).order_by('created')
+        first_submission = submissions.first()
+        last_submission = submissions.last()
+        return {
+            'first_submission': first_submission.created if first_submission else None,
+            'last_submission': last_submission.created if last_submission else None,
+        }
+
     @property
     def allowed_submission_extension(self):
         return {self.Type.SEGMENTATION: 'zip', self.Type.CLASSIFICATION: 'csv'}[self.type]
diff --git a/stade/core/static/css/stade/dashboard.css b/stade/core/static/css/stade/dashboard.css
index 57c0224b..851e0052 100644
--- a/stade/core/static/css/stade/dashboard.css
+++ b/stade/core/static/css/stade/dashboard.css
@@ -1,3 +1,8 @@
+.submission-timespan {
+  font-size:13px;
+  font-weight:normal;
+}
+
 .main-stats {
   background: #454545;
   color: #fff;
diff --git a/stade/core/templates/stats.html b/stade/core/templates/stats.html
index 40fa2184..ecd0f9ad 100644
--- a/stade/core/templates/stats.html
+++ b/stade/core/templates/stats.html
@@ -48,7 +48,14 @@ <h4>Success/Total</h4>
             {% for task in live_challenge.stats.tasks %}
               <li>
                 <a href="#">
-                  <span>{{ task.name }}</span>
+                  <span>{{ task.name }}&nbsp;&nbsp;</span>
+                  <span class="submission-timespan">
+                    {% if task.locked %}
+                      ({{ task.submission_timespan.first_submission|date:"M o" }} - {{ task.submission_timespan.last_submission|date:"M o" }})
+                    {% else %}
+                      ({{ task.submission_timespan.first_submission|date:"M o" }} - Present)
+                    {% endif %}
+                  </span>
                 </a>
 
                 <div class="is-flex is-align-items-center pr-4">