[ He was just summoned in the future and then time travelled back to ancient Rome, it's simple really.

Okay, yeah, probably easier not to ask. ]

I have certainly had my fair share of duels, though most had no rewards beyond pride, but for that contest I won a bag of grain for each victory. By the end I had enough to feed most of my comrades, and even some fish as a bonus. Mm, it was a good time.