How are the "Top Ten" lists in the competition ranked?

For most applications, the top ten is ranked simply by sorting by a single recorded value, such as "Race Time" for Dragster_2.0. Below is a brief description of each application's ranking algorithm

Dragster_2.0

Cars are ranked by fastest race time.

Gliders_2.0 

Gliders are ranked by longest flight time.

Rockets_2.0

Rockets are ranked by longest flight time.

Green Car_2.0

Green Car is special in that up to two values are used to determine the ranking. One or both of Range or Speed are used based on the "range/speed ratio" of the specification, which is a value between 0 and 1. If the ratio is 0, then ranking is determined only by speed. If the ratio is 1, then ranking is determined only by range. For values between 0 and 1, we determine two ranks and then apply the ratio to each to determine a new overall rank.

Mousetrap Car_2.0

Cars are ranked depending on the "performance criteria" of the specification. When set to speed, they are ranked by fastest car. When set to distance, they are ranked by longest distance traveled.

Structures_2.0

Bridges are ranked depending on the "performance indicator" of the specification. When set to capacity, they are ranked by highest capacity. When set to efficiency, they are ranked by the efficiency of the bridge, which is capacity/mass.

Prosthetics_2.0

Designs are ranked based on shortest distance to target.

Shelter_2.0

Designs are ranked first based on closest to the desired temperature, then by remaining hiker energy. e.g., a design that meets the desired temperature and uses the least amount of hiker energy would be ranked highest.

Rover_2.0

Designs are ranked based on shortest time to the target pad.

KidWind_2.0

Wind Turbines are ranked based on cheapest cost.

KidWind Challenge

Wind Turbines are ranked first based on highest energy output, then by lowest cost.