In just the past couple weeks we've seen:
Lemieux losing to Rubio
Kirkland losing to Ishida
Hasegawa losing to Gonzalez
JuanMa losing to Salido
Berto losing to Ortiz
Marcus Johnson losing to Dyah Davis
Add in Maidana almost losing to Morales and Erislandy Lara being lucky to get a draw.
Of these only Hasegawa and Berto were lower than -400. 3 went off at greater than -1K (4 if you include Lara). This has been a crazy month for boxing.