The DefCon WiFi Shootout exceeded 125 miles this year with the winning entry: But it's pretty clear from reading both their equipment list and their reasoning for their effective power emissions that they were in violation of several FCC rules. So you can't say that it was a winning WiFi Shootout, but a winning entry that used illegally high-powered, side-node interferring wireless communications in violation of Part 15.
On the SOCALWUG list, there's the beginning of a long discussion initiated by Jim Thompson (NetGate, formerly at Wayport, Vivato, Musenki, etc.) about how their claimed use of Part 97 rules (amateur radio) is probably impossible, and their side-node interference clearly illegal.
I suggested on another list that perhaps the FCC is invited to be part of the long-shot competition next year to see what the legal distance for Part 15 devices can be!