diff --git a/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkSpans.java b/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkSpans.java
index 4d8c191..8bcc0eb 100644
--- a/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkSpans.java
+++ b/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkSpans.java
@@ -206,10 +206,30 @@
 	
 	System.out.println("It took " + seconds + " seconds with classes");
 
+	t1 = 0;
+	t2 = 0;
+	// With submatch
+	json = getString(getClass().getResource("/queries/benchmark5-submatch.jsonld").getFile());
+
+	t1 = System.nanoTime();
+	for (int i = 1; i <= rounds; i++) {
+	    kr = new KorapSearch(json).run(ki);
+	};
+	t2 = System.nanoTime();
+
+	seconds = (double)(t2-t1) / 1000000000.0;
+	
+	System.out.println("It took " + seconds + " seconds with submatches");
+
+	/** HERE IS A BUG! */
+
+	System.err.println(kr.toJSON());
+
+
 
 	// System.err.println(kr.toJSON());
 
-	System.err.println(kr.getMatch(3).getSnippetBrackets());
+	// System.err.println(kr.getMatch(3).getSnippetBrackets());
 
 
 	// 2000 rounds:
@@ -228,6 +248,13 @@
 	// It took 10.365989238 seconds without classes
 	// It took 13.833405885 seconds with classes
 
+	// It took 15.368675425 seconds without classes
+	// It took 18.347603186 seconds with classes
+	// It took 15.941057294 seconds with submatches
+
+	// It took 15.241253549 seconds without classes
+	// It took 17.30375624 seconds with classes
+	// It took 15.367171254 seconds with submatches
     };
 
 
diff --git a/src/test/resources/queries/benchmark5-submatch.jsonld b/src/test/resources/queries/benchmark5-submatch.jsonld
new file mode 100644
index 0000000..a9cad71
--- /dev/null
+++ b/src/test/resources/queries/benchmark5-submatch.jsonld
@@ -0,0 +1,61 @@
+{
+    "@context" : "http://ids-mannheim.de/ns/KorAP/json-ld/v0.1/context.jsonld",
+    "query": {
+	"@type": "korap:group", 
+	"operation": "operation:sequence",
+	"operands": [
+	    {
+		"@type": "korap:token",
+		"wrap" : {
+		    "@type": "korap:term", 
+		    "layer": "orth",
+		    "key" : "der"
+		}
+	    },
+	    {
+		"@type" : "korap:group",
+		"operation" : "operation:submatch",
+		"classRef" : [2],
+		"operands" : [
+		    {
+			"@type" : "korap:group",
+			"operation" : "operation:class",
+			"class" : 1,
+			"operands" : [
+			    {
+				"@type": "korap:group", 
+				"operation": "operation:sequence",
+				"operands" : [
+				    {
+					"@type": "korap:token",
+					"wrap" : {
+					    "@type": "korap:term", 
+					    "layer": "orth",
+					    "key" : "Mann"
+					}
+				    },
+				    {
+					"@type" : "korap:group",
+					"operation" : "operation:class",
+					"class" : 2,
+					"operands" : [
+					    {
+						"@type": "korap:token",
+						"wrap" : {
+						    "@type": "korap:term", 
+						    "layer": "orth",
+						    "key" : "und"
+						}
+					    }
+					]
+				    }
+				    
+				]
+			    }
+			]
+		    }
+		]
+	    }
+	]
+    }
+}