Started turning the ContentView -> PaceResults calculations into functions but as of this commit they don't work so it contains many errors. Also DID make the seconds work properly so 0:00:300 properly wraps to 0:05:00, and likewise, 0:00:86400 properly wraps to 24:00:00.

FizzBuzz.playground/Contents.swift

@@ -0,0 +1,14 @@
+for i in 1...100 {
+	if i.isMultiple(of: 3) && i.isMultiple(of: 5){
+		print("FizzBuzz")
+	}
+	else if i.isMultiple(of: 3) {
+		print("Fizz")
+	}
+	else if i.isMultiple(of: 5) {
+		print("Buzz")
+	}
+	else{
+		print(i)
+	}
+}

FizzBuzz.playground/contents.xcplayground

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>