Can you tell me which methods were used below?

**PACK**

First - at the Pack we had 25 cars competing on a two-lane track. Each car was assigned a number a check in. In a "preliminary" round car #1 raced against car #2, etc. Each car ran in lane 1, then in lane 2 - and is scored the average TIME. Then in a "time trial" round the fastest two cars ran against each other, then 3rd against 4th, etc. until all cars ran. At this point all cars had run four times - the first two times totally random - the second they were paired up more evenly (giving lower cars a chance to win at least one race).

At this point the top sixteen cars were announced. These sixteen were bracketed (1 & 9, 2 & 10, 3 & 11, 4 & 12, 5 & 13, 6 & 14, 7 & 15, 8 & 16). These cars ran against each other twice (once in each lane), and one car would be eliminated - one would go on to the next round. 16 cars would go to 8, then to 4, then to 2, where the winner was identified.

DISTRICT

DISTRICT

At the district there were approximately 80 cars running on a four lane track. Again the cars were assigned sequential numbers at check in, but this time the cars running against each was random in the first heat. Five rounds(?) of 20 heats(?) were run with the winner in each heat given 7 points, 2nd place 5 points, 3rd place 3 points, and 4th place 1 point. At the end of 5 rounds four cars had 35 points (lost no heats) and four cars had 33 points (came in second one heat). I am assuming that each round the lanes and pairings were systematically rotated.

At this point the top eight were announced and they ran against each other in two car heats. Each car would continue to run heats until it lost twice at which point it was eliminated. This continued until the winner was identified.