Deny, how does that work for awards in a registered match?
smoking-bras, it's as was explained above. If you have TR and Open shooters all together in one class, then it's all by score as usual and Open will usually win the match but maybe not all different classifications.
In other words, it's easier to make HM in Open than in TR. A great Open shooter will usually outscore a great TR shooter, especially in tricky conditions. When the conditions are nice, it's more of a horse race.
When I started in F-class, I was the lone TR shooter for a number of years, and I always contributed money to the winning Open shooters. When we had enough people to make a TR division, it got more fun for me. Nowadays we seem to have more TR shooters than Open shooters, so the glove is on the other foot. But Open always has an advantage with their higher BC bullets.
I should add that when I was match director I always kept TR and Open separate, even if that meant one division or another would not get awards. It just seemed fairer to me. As was explained above, the big prize is usually bragging rights. The scores are submitted to the NRA anyway.
Also, there is something in the rules that HM cannot be combined with other classes, so when there are only one of two HMs in a match, they can win the whole relay or match, but they can't win first in class and so on. I would always roll up starting from the bottom, until I have enough for a class and then start again with the next higher class and stop at Master.
When there are just so few shooters, there are no awards for that division.