I'm not going to lie, I don't really track them too much. When I used to play them regularly, I used to consistently win. However, this was back when the general player pool in my area was less skilled as the buyins were lower.
I don't really play bigger comps often, and if I do I've generally sattelited my way in. My biggest cash was in a £200 tournament about 6 years ago for £6k. The biggest I'll generally buy myself into nowadays however is about £100.
All three of my biggest tournaments played to date have won via satellites, with them being $2750, €1150 (The one I played 2 days ago at the Irish Open) and a £550 were won from $0.01, Nothing and £5 respectively.
If you count these buyins where I didn't cash, then it knocks off a large chunk of winnings, but overall still probably up somewhere in the low 4 figures would be my best estimate