diff --git a/include/MReadOutAssembly.h b/include/MReadOutAssembly.h
index 743597db..57da95fb 100644
--- a/include/MReadOutAssembly.h
+++ b/include/MReadOutAssembly.h
@@ -245,10 +245,10 @@ class MReadOutAssembly : public MReadOutSequence
   //! Get the Strip Pairing quality flag
   bool HasStripPairing_QualityFlag() const { return m_StripPairing_QualityFlag; }
 
-  //! Set the Reduced Chi^2 used in MultiRoundChiSquare module
-  void SetStripPairingReducedChiSquare(double StripPairingReducedChiSquare) { m_StripPairingReducedChiSquare = StripPairingReducedChiSquare; }
-  //! Return the Reduced Chi^2
-  double GetStripPairingReducedChiSquare() const { return m_StripPairingReducedChiSquare; }
+  //! Set the Reduced Chi^2 used in MultiRoundChiSquare module (one for each detector)
+  void SetStripPairingReducedChiSquare(double StripPairingReducedChiSquare) { m_StripPairingReducedChiSquare.push_back(StripPairingReducedChiSquare); }
+  //! Return all the Reduced Chi^2 (for each detector)
+  vector<double> GetStripPairingReducedChiSquare() const { return m_StripPairingReducedChiSquare; }
 
   //! Set the Quality of this Event used in Greedy Strip pairing module
   //! TODO Change name of this variable to be more descriptive or get rid of Greedy algorithim all together
@@ -430,7 +430,7 @@ class MReadOutAssembly : public MReadOutSequence
   vector<MString> m_StripPairingString_QualityFlag;
 
   //! Reduced Chi^2 of the Strip Paired Event
-  double m_StripPairingReducedChiSquare;
+  vector<double> m_StripPairingReducedChiSquare;
 
   //! Quality of this event in Greedy strip pairing
   //! TODO change variable name or remove Greedy approach all together
diff --git a/src/MModuleEventFilter.cxx b/src/MModuleEventFilter.cxx
index 0134598c..23c81269 100644
--- a/src/MModuleEventFilter.cxx
+++ b/src/MModuleEventFilter.cxx
@@ -175,11 +175,18 @@ bool MModuleEventFilter::AnalyzeEvent(MReadOutAssembly* Event)
   }
     
   // Apply Chi^2 filter (as calculated in strip pairing)
+  
+  // Make sure there are actually reduced chi squares to filter on
+  const auto& ReducedChiSquareVector = Event->GetStripPairingReducedChiSquare();
+  if (ReducedChiSquareVector.size() > 0) {
+    double Maximum = *max_element(ReducedChiSquareVector.begin(), ReducedChiSquareVector.end());
+    double Minimum = *min_element(ReducedChiSquareVector.begin(), ReducedChiSquareVector.end());
     
-    if (Event->GetStripPairingReducedChiSquare() < m_MinimumStripPairingReducedChiSquare || Event->GetStripPairingReducedChiSquare() > m_MaximumStripPairingReducedChiSquare) {
-        FilteredOut = true;
+    // Filter based on the minimum and maximum reduced chi square in list
+    if (Minimum < m_MinimumStripPairingReducedChiSquare || Maximum > m_MaximumStripPairingReducedChiSquare) {
+      FilteredOut = true;
     }
-
+  }
 
   if (FilteredOut == true) {
     Event->SetFilteredOut(true);
diff --git a/src/MReadOutAssembly.cxx b/src/MReadOutAssembly.cxx
index 3b31e916..96b0c76a 100644
--- a/src/MReadOutAssembly.cxx
+++ b/src/MReadOutAssembly.cxx
@@ -185,7 +185,7 @@ void MReadOutAssembly::Clear()
   m_EventReconstructionError = false;
   m_EventReconstructionErrorString.clear();
   
-  m_StripPairingReducedChiSquare = -1; 
+  m_StripPairingReducedChiSquare.clear();
  
   m_StripHitBelowThreshold_QualityFlag = false;
   m_StripHitBelowThresholdString_QualityFlag.clear();
@@ -541,7 +541,12 @@ bool MReadOutAssembly::StreamDat(ostream& S, int Version)
   S<<"ID "<<m_ID<<endl;
   S<<"CL "<<m_Time<<endl;
   S<<"TI "<<m_EventTimeUTC<<endl;
-  S<<"QP "<<m_StripPairingReducedChiSquare<<endl; // Read out strip pairing qualiy factor
+  S<<"QP";
+  // iterate through the vectorized strip pairing reduced chi squares
+  for (auto i : m_StripPairingReducedChiSquare) {
+    S<<" "<<i;
+  }
+  S<<endl;
     
   for (MSimIA& IA: m_SimIAs) {
     S<<IA.ToSimString()<<endl;