diff --git a/src/RideItem.cpp b/src/RideItem.cpp
index 6eebcce24..eb73cb72e 100644
--- a/src/RideItem.cpp
+++ b/src/RideItem.cpp
@@ -1211,7 +1211,7 @@ RideItem::updateIntervals()
                                                             match.start, match.stop,
                                                             f->timeToDistance(match.start), f->timeToDistance(match.stop),
                                                             count++,
-                                                            QColor(255,165,0),
+                                                            match.exhaust ? QColor(255,69,0) : QColor(255,165,0),
                                                             RideFileInterval::EFFORT);
                 intervalItem->rideInterval = NULL;
                 intervalItem->refresh();        // XXX will get called in constructore when refactor
@@ -1224,11 +1224,12 @@ RideItem::updateIntervals()
                 double duration = intervalItem->getForSymbol("workout_time");
                 int zone = 1 + context->athlete->zones()->whichZone(zoneRange, ap);
 
-                intervalItem->name = QString(tr("L%1 MATCH %2 (%3w %4 kJ)"))
+                intervalItem->name = QString(tr("L%1 %5 %2 (%3w %4 kJ)"))
                                                  .arg(zone)
                                                  .arg(time_to_string(duration))
                                                  .arg((int)ap)
-                                                 .arg(match.cost/1000);
+                                                 .arg(match.cost/1000)
+                                                 .arg(match.exhaust ? "TE MATCH" : "MATCH");
 
                 intervals_ << intervalItem;
             }
diff --git a/src/WPrime.cpp b/src/WPrime.cpp
index e62afd9d9..c2a757abf 100644
--- a/src/WPrime.cpp
+++ b/src/WPrime.cpp
@@ -313,7 +313,7 @@ WPrime::setRide(RideFile *input)
                 match.stop = end;
                 match.secs = (match.stop-match.start) +1; // don't fencepost!
                 match.cost = values[match.start] - values[match.stop];
-
+                match.exhaust = values[match.stop] <= 500 ? true : false; // its to exhaustion!
                 if (match.cost >= WprimeMatchMinJoules) {
                     matches << match;
                 }
diff --git a/src/WPrime.h b/src/WPrime.h
index ca60c2c60..25641957e 100644
--- a/src/WPrime.h
+++ b/src/WPrime.h
@@ -33,6 +33,7 @@
 struct Match {
     int start, stop, secs;       // all in whole seconds
     int cost;                   // W' depletion
+    bool exhaust;
 };
 
 class WPrime {