You can easily get from the quad-core Java:F# to quad-core Clojure:F# by changing a drop-down but that isn't what you did.
You do seem to be using the what you dislike and what you are not presenting as reliable to suggest "F# on mono and Clojure (which is slower than plain Java) look pretty similar".
If you really dislike the benchmarks game, don't look at the benchmarks game and don't show it to other people :-)
Look, the results aren't usefully different: http://shootout.alioth.debian.org/u32q/benchmark.php?test=al...