diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 26fb7c849..b73d83086 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -132,7 +132,7 @@ jobs:
       - name: Run loadtest
         run: |
           postgrest-loadtest-against -k ${{ matrix.kind }} main ${{ steps.get-latest-tag.outputs.tag }}
-          postgrest-loadtest-report >> "$GITHUB_STEP_SUMMARY"
+          postgrest-loadtest-report -g ${{ matrix.kind }} >> "$GITHUB_STEP_SUMMARY"
 
   flake:
     strategy:
diff --git a/nix/tools/loadtest.nix b/nix/tools/loadtest.nix
index 5ec25a67c..47e028bb7 100644
--- a/nix/tools/loadtest.nix
+++ b/nix/tools/loadtest.nix
@@ -219,17 +219,22 @@ let
       {
         name = "postgrest-loadtest-report";
         docs = "Create a report of all loadtest reports as markdown.";
+        args = [
+          "ARG_OPTIONAL_SINGLE([group], [g], [Marker to group results])"
+        ];
         workingDir = "/";
       }
       ''
-        echo -e '## Loadtest results\n'
+        marker=''${_arg_group:+$_arg_group}
+
+        echo -e "## Loadtest results ($marker)\n"
 
         find loadtest -type f -iname '*.bin' -exec ${reporter} {} \; \
           | ${jq}/bin/jq '[paths(scalars) as $path | {param: $path | join("."), (.branch): getpath($path)}]' \
           | ${jq}/bin/jq --slurp 'flatten | group_by(.param) | map(add)' \
           | ${toMarkdown}
 
-        echo -e '\n\n## Process monitoring results\n'
+        echo -e "\n\n## Process monitoring results ($marker)\n"
 
         echo 'Tracks the memory and CPU usage in 1 second intervals for the duration of the loadtest.'
         echo -e 'If a branch finishes its loadtest in less seconds than another branch, it will have blank cells for the missing seconds.\n'