Here are some US Normal mode stats. Interestingly enough, US Normal uses the same formulae as JP Hard.
That'd be because they're the same mode. I'll get some more samples in a bit.
JP Normal:
Lv. 1 Eddie v. Lv. 3 Pugo (damage): 20 Exp.
Lv. 2 Eddie v. Lv. 3 Pugo (damage): 20 Exp.
Lv. 1 Micaiah v. Lv. 3 Pugo (kill): 100 Exp. (che...)
Lv. 9 Noyce v. Lv. 1 Soldier (damage): 15 Exp.
Lv. 9 Noyce v. Lv. 1 Soldier (kill): 35 Exp.
Lv. 3 Micaiah v. Lv. 1 Fighter (kill): 44 Exp.
Lv. 9 Noyce v. Lv. 7 Isaiah (damage): 18 Exp.
Lv. 9 Noyce v. Lv. 7 Isaiah (kill): 100 Exp. (che...)
Lv. 1* Sothe v. Lv. 2 Soldier (kill): 14 Exp.
Lv. 1* Sothe v. Lv. 3 Soldier (kill): 15 Exp.
Lv. 1* Sothe v. Lv. 8 Zaitan (damage): 13 Exp.
Lv. 1* Sothe v. Lv. 8 Zaitan (kill): 83 Exp.
Hopefully, with Sothe's data, you can get the Boss mod since everyone else's data is useless for that.