Final Chase Ratings
Why do we need Final Chase Ratings?
Because when looking solely at winning percentages, there is an element of unfairness. For example, these were the first 2 episodes of week commencing 26/10/2020:
- Jenny lost chasing 22 by 1 step.
- Shaun won chasing 13+1 with 3 seconds to go.
I know which one I'd rate as the better performance, but simply looking at win or loss, the opposite happens. With Final Chase Ratings, these 2 performances score 45.00 and 30.16 respectively, which seems a better reflection of the relative performance.
How are Final Chase Ratings calculated?
For each episode the final chase rating is calculated as: Final Chase Rating = Performance + Difficulty - Gap
- Performance is the number of questions the chaser would have got right in 2 minutes had they continued at the same speed and accuracy that they had been for however long the final chase lasted.
- Difficulty is the target set by the team after 2 minutes. ie. it does not include any push forwards that might occur.
- Gap is, when losing, how many steps behind the chaser was.