No one here can accurately assess your risk, only give you opinions as there are no stats on the transmission of hep c from fist fights, hep c is spread from blood to blood contact.
IMO, maybe a very slight risk but doubtful, if your worried wait the proper amount of time and get tested.
How soon after exposure to HCV can anti-HCV be detected?
HCV infection can be detected by anti-HCV screening tests (enzyme immunoassay) 4–10 weeks after infection. Anti-HCV can be detected in >97% of persons by 6 months after exposure.
How soon after exposure to HCV can HCV RNA be detected by PCR?
HCV RNA appears in blood and can be detected as early as 2–3 weeks after infection.
Have a great day
Thank you very much for your advice.
There were no visible blood on my hand or on his face. The scratch on my knuckle was superficial. After peel off the skin and a hard squeeze, tiny amount of blood came out. Can microscopic (not detectable by naked eye) amount of blood be infectious? If so, how could I prevent day to day body contact with strangers who might have a cut from transmitting HCV to me?
Thank you very much for your insightful advice. I feel much better now. Still, I will get tested after 10 weeks time. Thanks again