If you look at the graph, you'll see "possible mismatch - one-core program compared to multi-core program." there. And indeed, of the ten benchmarks, four of t

If you look at the graph, you'll see "possible mismatch - one-core program compared to multi-core program." there. And indeed, of the ten benchmarks, four of them are singlecore racket vs quadcore Go. Single core-comparison is much less dramatic, though Racket is still slower.