diff --git a/test/site_test.py b/test/site_test.py
index e0047d4..66f60a5 100644
--- a/test/site_test.py
+++ b/test/site_test.py
@@ -349,3 +349,6 @@ def paged(limit=10):
 
     for log in get(updated_since=updated_pivot)[0]:
         assert log['updated'] > updated_pivot
+
+    for log in get(include_dupes='no')[0]:
+        assert log['duplicate_of'] is None
diff --git a/trends/site/api.py b/trends/site/api.py
index ad67420..3e2203c 100644
--- a/trends/site/api.py
+++ b/trends/site/api.py
@@ -36,10 +36,12 @@ def next_page(rows):
 
 @api.route('/logs')
 def logs():
-    if resp := logs_last_modified():
+    dupes = flask.request.args.get('include_dupes', 'yes', str) == 'yes'
+    if resp := logs_last_modified(dupes):
         return resp
+
     view = flask.request.args.get('view', 'basic', str)
-    logs = [dict(log) for log in get_logs(view)]
+    logs = [dict(log) for log in get_logs(view, dupes)]
     return flask.jsonify(logs=logs, next_page=next_page(logs))
 
 @api.route('/maps')
diff --git a/trends/site/common.py b/trends/site/common.py
index bedaad0..7278951 100644
--- a/trends/site/common.py
+++ b/trends/site/common.py
@@ -6,10 +6,12 @@
 from .util import get_db, get_filter_params, get_filter_clauses, get_order, get_pagination, \
                   last_modified
 
-def logs_last_modified():
+def logs_last_modified(dupes):
     filters = get_filter_params()
     filter_clauses = get_filter_clauses(filters, 'title', 'formatd', 'mapid', 'time', 'logid',
                                         'updated', 'league')
+    if not dupes:
+        filter_clauses += "\nAND duplicate_of ISNULL"
 
     db = get_db()
     cur = db.cursor()
@@ -34,11 +36,14 @@ def logs_last_modified():
     cur.execute(query, filters)
     return last_modified(cur.fetchone()[0])
 
-def get_logs(view):
+def get_logs(view, dupes):
     limit, offset = get_pagination()
     filters = get_filter_params()
     filter_clauses = get_filter_clauses(filters, 'title', 'format', 'map', 'time', 'logid',
                                         'updated', league='log.league')
+    if not dupes:
+        filter_clauses += "\nAND duplicate_of ISNULL"
+
     order, order_clause = get_order({
         'logid': "logid",
         'duration': "duration",
diff --git a/trends/site/root.py b/trends/site/root.py
index 020d18a..85299dc 100644
--- a/trends/site/root.py
+++ b/trends/site/root.py
@@ -155,9 +155,9 @@ def leaderboard():
 
 @root.route('/logs')
 def logs():
-    if resp := logs_last_modified():
+    if resp := logs_last_modified(True):
         return resp
-    return flask.render_template("logs.html", logs=get_logs('basic').fetchall())
+    return flask.render_template("logs.html", logs=get_logs('basic', True).fetchall())
 
 @root.route('/log')
 def log_form():
diff --git a/trends/site/templates/api.html b/trends/site/templates/api.html
index 4912a62..5757297 100644
--- a/trends/site/templates/api.html
+++ b/trends/site/templates/api.html
@@ -358,6 +358,14 @@ <h4>Parameters</h4>
 			</dl>
 			</p>
 		</li>
+		<li>
+			{{ pre("include_dupes") }} (default {{ pre("yes") }})
+			<p>
+			Include duplicate logs in the output. If {{ pre("yes") }}, then
+			{{ pre("duplicate_of") }} may be non-{{ pre("null") }}. If {{ pre("no") }},
+			then such logs will be not be included with the results.
+			</p>
+		</li>
 	</ul>
 	</p>
 	<h4>Response</h4>