diff --git a/assets/js/job/add.js b/assets/js/job/add.js
index d19a803..6336ce1 100644
--- a/assets/js/job/add.js
+++ b/assets/js/job/add.js
@@ -128,8 +128,8 @@ function initContainerType()
 }
 
 function initRangeInput() {
-    document.querySelector('.range-input-errorlevel').addEventListener('input', event => {
-        document.querySelector('.range-value-errorlevel').innerHTML = event.target.value +  '%';
+    document.querySelector('.range-input-fail-pct').addEventListener('input', event => {
+        document.querySelector('.range-value-fail-pct').innerHTML = event.target.value +  '%';
     })
 }
 
diff --git a/src/Repository/Job.php b/src/Repository/Job.php
index a25eb78..84588de 100644
--- a/src/Repository/Job.php
+++ b/src/Repository/Job.php
@@ -28,9 +28,9 @@ class Job extends Repository
             $job['service'] = $job['data']['service'] ?? '';
             $job['norun'] = isset($job['lastrun']) && $job['nextrun'] > $job['lastrun'];
             $job['running'] = $job['running'] != 0;
-            $failed = count($runRepo->getRunsForJob($job['id'], true));
-            $all = count($runRepo->getRunsForJob($job['id']));
-            $job['needschecking'] = $all > 0  && (($failed / $all) * 100) > $job['data']['errorlevel'];
+            $failed = count($runRepo->getRunsForJob($job['id'], true, $job['data']['fail-days']));
+            $all = count($runRepo->getRunsForJob($job['id'], false, $job['data']['fail-days']));
+            $job['needschecking'] = $all > 0  && (($failed / $all) * 100) > $job['data']['fail-pct'];
             if(!empty($job['data']['containertype']) && $job['data']['containertype'] != 'none') {
                 $job['host-displayname'] = $job['data']['service'] . ' on ' . $job['data']['host'];
             }
@@ -406,7 +406,8 @@ class Job extends Repository
         $values['data']['crontype'] = $values['crontype'];
         $values['data']['hosttype'] = $values['hosttype'];
         $values['data']['containertype'] = $values['containertype'];
-        $values['data']['errorlevel'] = $values['errorlevel'];
+        $values['data']['fail-pct'] = $values['fail-pct'] ?? 50;
+        $values['data']['fail-days'] = $values['fail-days'] ?? 7;
 
         if(empty($values['data']['crontype'])) {
             throw new \InvalidArgumentException("Crontype cannot be empty");
diff --git a/src/Repository/Run.php b/src/Repository/Run.php
index b085c96..6fd2aec 100644
--- a/src/Repository/Run.php
+++ b/src/Repository/Run.php
@@ -13,13 +13,17 @@ class Run extends Repository
     const SUCCESS = 'S';
     const MANUAL = 'M';
 
-    public function getRunsForJob(int $id, bool $onlyfailed = false, bool $ordered = true): array
+    public function getRunsForJob(int $id, bool $onlyfailed = false, int $maxage = NULL, bool $ordered = true): array
     {
         $runsSql = "SELECT * FROM run WHERE job_id = :job";
         $params = [':job' => $id];
         if ($onlyfailed) {
             $runsSql .= ' AND flags LIKE "%' . Run::FAILED . '%"';
         }
+        if($maxage !== NULL) {
+            $runsSql .= ' AND timestamp > :timestamp';
+            $params[':timestamp'] = time() - ($maxage * 24 * 60 * 60);
+        }
         if ($ordered) $runsSql .= ' ORDER by timestamp DESC';
         $runsStmt = $this->dbcon->prepare($runsSql);
         $runsRslt = $runsStmt->executeQuery($params);
diff --git a/templates/job/add.html.twig b/templates/job/add.html.twig
index 7ef6314..d656faf 100644
--- a/templates/job/add.html.twig
+++ b/templates/job/add.html.twig
@@ -60,6 +60,11 @@
         </div>
     </div>
 
+    <div class="mb-3">
+        <label for="fail-days">Number of days calculated for fail percentage</label>
+        <input type="number" name="fail-days" class="form-control" id="fail-days" placeholder="7">
+    </div>
+
     <h3>Job details</h3>
     <div class="mb-3 btn-group croncategory-selector">
         <div class="dropdown croncategory-group crontype-group">
diff --git a/templates/job/edit.html.twig b/templates/job/edit.html.twig
index deedb8c..519d704 100644
--- a/templates/job/edit.html.twig
+++ b/templates/job/edit.html.twig
@@ -47,15 +47,20 @@
     </div>
 
     <div class="mb-3">
-        <label for="errorlevel">Max fail percentage</label>
+        <label for="fail-pct">Max fail percentage</label>
         <div class="input-group d-flex">
-            <div class="range-value range-value-errorlevel pe-1">{% if attribute(data, 'errorlevel') is not empty %}{{ attribute(data, 'errorlevel') }}{% else %}50{% endif %}%</div>
+            <div class="range-value range-value-fail-pct pe-1">{% if attribute(data, 'fail-pct') is not empty %}{{ attribute(data, 'fail-pct') }}{% else %}50{% endif %}%</div>
             <div class="range-input ps-1 flex-grow-1">
-                <input type="range" name="errorlevel" class="form-range range-input-errorlevel" id="errorlevel" max="100" step="5" value="{% if attribute(data, 'errorlevel') is not empty %}{{ attribute(data, 'errorlevel') }}{% else %}50{% endif %}">
+                <input type="range" name="fail-pct" class="form-range range-input-fail-pct" id="fail-pct" max="100" step="5" value="{% if attribute(data, 'fail-pct') is not empty %}{{ attribute(data, 'fail-pct') }}{% else %}50{% endif %}">
             </div>
         </div>
     </div>
 
+    <div class="mb-3">
+        <label for="fail-days">Number of days calculated for fail percentage</label>
+        <input type="number" name="fail-days" class="form-control" id="fail-days" placeholder="7" value="{% if attribute(data, 'fail-days') is not empty %}{{ attribute(data, 'fail-days') }}{% endif %}">
+    </div>
+
     <h3>Job details</h3>
     <div class="mb-3 btn-group croncategory-selector">
         <div class="dropdown croncategory-group crontype-group{% if data.crontype != 'http' %} btn-group{% endif %}">