Each match is different, it is another day, regardless of ranking, record or size of school. A wrestler with a record of 20-2 just lost by a score of 18-2 to a wrestler who had a record of 8-2. Wrestling is a combination of mind, strength and skill. Some days they don't always come together at the right time.
Don't blame the one who lost. No, doubt he gave his best today but it wasn't enough.