Mo Farah (23/03/1983)
1:48.24 (2008), 3:28.81 (2013), 7:32.62 (2016), 8:03.40 (2015) 2 miles, 12:53.11 (2011), 26:46.57 (2011), 59:32 (2015), 2:05:11 (2018).
Formidable range, especially as most of those times were achieved without the Super Shoes of today. Yes, he ran 2:05:11 in Chicago (2018), but they were not the super shoes of today. Take Linkletter, Canada, actually a dual U.S./Canadian citizen, a 2:07:41 runner, light years away (with all due respect) from Farah's quality as a runner. Farah, with Linkletter's Puma (legal dope) shoes would have ran 2:02:00-2:03:30, I believe.
In addition, Farah never really focused on times, per se. He focused on Championship winning, which he did, possibly better than any other distance runner in history. Otherwise, I believe 12:35-12:40, 26:20-26:30 would have been attainable in Cheptegei type races with pace lights. He definitely had the wheels, and the most beautiful, fluid stride.