diff --git a/scripts/metrics/buildkite_master_stats.py b/scripts/metrics/buildkite_master_stats.py
new file mode 100755
index 0000000..f4af844
--- /dev/null
+++ b/scripts/metrics/buildkite_master_stats.py
@@ -0,0 +1,145 @@
+#!/usr/bin/env python3
+# Copyright 2019 Google LLC
+#
+# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://llvm.org/LICENSE.txt
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# -----------------------------------------------------------------------------
+# This script will collect all breakages of the master branch builds from
+# buildkite and format the results nicely.
+# Arguments:
+#     llvm-path :  folder where the LLVM checkout is kept
+#     token     :  Access token for buildkite 
+# -----------------------------------------------------------------------------
+
+import requests
+import git
+import argparse
+import json 
+import os
+import datetime
+
+class Build:
+
+  def __init__(self, json_dict):
+    self._json_dict = json_dict
+
+  @property
+  def number(self) -> int:
+    return self._json_dict['number']
+
+  @property
+  def web_url(self) -> str:
+    return self._json_dict['web_url']
+
+  @property
+  def state(self) -> str:
+    return self._json_dict['state']
+
+  @property
+  def has_passed(self) -> bool:
+    return self.state == 'passed'
+
+  @property
+  def commit(self) -> str:
+    return self._json_dict['commit']
+
+  @property
+  def created_at(self) -> datetime.datetime:
+    #example: 2019-11-07T14:13:07.942Z
+    return datetime.datetime.fromisoformat(self._json_dict['created_at'].rstrip('Z'))
+
+
+class BuildKiteMasterStats:
+
+  def __init__(self, llvm_repo: str, token_path: str):
+    self._llvm_repo = llvm_repo
+    with open(token_path, 'r') as token_file:
+      self._token = token_file.read().strip()
+
+  def get_stats(self, organisation: str, pipeline: str):
+    url = "https://api.buildkite.com/v2/organizations/{}/pipelines/{}/builds".format(organisation, pipeline)
+    return self._get_url(url)
+    
+
+  def _get_url(self, url: str):
+    """Get paginated results from server."""
+    page = 1
+    results = []
+    while True:
+      page_url = url + f"?api_key={self._token}&page={page}&per_page=100"
+      new_results = requests.get(page_url).json()
+      results.extend(new_results)
+      print(len(new_results))
+      if len(new_results) < 100:
+        break
+      page += 1 
+    return results
+
+  def save_results(self, output_path:str, data):
+    with open(output_path, 'w') as output_file:
+      json.dump(data, output_file)
+
+  def get_builds(self, json_path: str):
+    with open(json_path) as json_file:
+      builds = json.load(json_file)
+    build_dict = {}
+    for b in builds:
+      build = Build(b)
+      build_dict[build.number] = build
+    return build_dict
+
+if __name__ == '__main__':
+  parser = argparse.ArgumentParser(description='Process some integers.')
+  parser.add_argument('llvm_path')
+  parser.add_argument('token')
+  args = parser.parse_args()
+  CACHE_FILE = 'tmp/bklogs.json'
+  bk = BuildKiteMasterStats(args.llvm_path, args.token)
+  
+  if not os.path.exists(CACHE_FILE):
+    results = bk.get_stats('llvm-project','llvm-master-build')
+    bk.save_results(CACHE_FILE, results)
+  
+  builds = bk.get_builds(CACHE_FILE)
+  last_fail = None
+  fail_count = 0
+  start_time = None
+  for build_number in sorted(builds.keys()):
+    if build_number < 50:
+      # skip the first builds as they might not be mature enough
+      continue
+    build = builds[build_number]
+    if build.has_passed:
+      if last_fail is not None:
+        print(f'* ends with [build {build.number}]({build.web_url})')
+        print(f'* ends with commit {build.commit}')
+        print(f'* ends on {build.created_at}')
+        duration = build.created_at - start_time
+        print(f'* duration: {duration} [h:m:s]')
+        print('* cause: # TODO')
+        print()
+        last_fail = None
+    else:
+      if last_fail is None:
+        print(f'# Outage {fail_count}')
+        print()
+        print(f'* starts with [build {build.number}]({build.web_url})')
+        print(f'* starts with commit {build.commit}')
+        print(f'* starts on {build.created_at}')
+        fail_count += 1
+        start_time = build.created_at
+      else:
+        pass
+      last_fail = build.number
+      
+  
\ No newline at end of file