 One thousand Peloponnesians were killed, while the Boeotians lost only 300 men.Most importantly, since it constituted a significant proportion of the entire Spartan manpower, 400 of the 700 Spartiates present were killed, a loss that posed a serious threat to Sparta's future war-making abilities.When, after the battle, the Spartans asked if they and the Peloponnesians could collect the dead, Epaminondas suspected that the Spartans would try to cover-up the scale of their losses.