I ran 1:21 in a workout, but then that indoor season only ran 1:54 (flat 200m track). Could I have run faster? Probably, but just goes to show that these things can vary.
Before youre 1:22 I'd say your 2 mile was pretty handily your best event. 1:22 converts to around 50 flat, maybe a tad under, and then 1:55 at least. Solid performance for sure. You've got some good range.