Advancement Percentile Guidelines

AHSCS uses MotoTally timing and scoring software. This software has the ability to calculate Advancement Percentiles (AP). The AP is one tool used by the AHSCS Scoring Staff to help ensure fair competition at the races. In short the AP assists the Scoring Staff spot situations where quicker racers might be entering classes below their ability.

Understanding the Baseline

MotoTally allows for categorizing racers into classes based on speed. When a race has been completed the top three racers speed is averaged. That average speed will be the 100% baseline all other racers will be compared to for that race. The average of all completed lap times of all racers will be compared to this 100% to determine every racer’s percentile. Using a simple example; if 100% for that race is a 24 MPH average and a racer’s average speed was 21 MPH then that racer’s percentile is 87.5. This system enables similar speeds to be grouped together. A percentile range is assigned to each class. For new racers these are the numbers in the AP_Range column of the class listing. Class names are unnecessary but used to help racers pick the correct class.

Breakouts Guide Class Moves

After each race, all racers will be evaluated to see if their percentile is in the range for that class. Going above a percentile range is called “breaking out”. To allow for fluctuations, a break out system has been developed. Each breakout point is recognized and stored. When a racer breaks out a total of 10 points, the racer will move up. One example would be a racer who does not enter the correct class and breaks out by 10 points on the first race. A second example would be a racer who breaks out two points over five races. Once a racer has completed six races, for that season, the racer will remain in that class unless the racer chooses to move up.

Points Moving UpIf a racer is moved up, the racer can carry points to the new class. Racer moves are determined by evaluating overall results for a race and then determining where a racer would have finished had they been in that class on that day. An example would be a racer who finished 1st in B and would have finished 4th in A. 4th Place points will be awarded as the carry up points. This is carefully done so that no racer in the upper class is bumped down by the move up, and no racer in the lower class moves up because of the vacancy. In the example above, the results will now reflect the first place position was vacated and the two 4th place positions in the A class for that race.

Points Moving Down

If a racer is moved down, the points carry in the same fashion. A racer who wants to move down can submit his request to the series official. Percentile results will be evaluated to determine if the racer should be moved. A racer who cannot reach the minimum speed for his class can be moved down, after the racer completes a total of three races.

How Racers Should Use the AP

Look at the percentile ranges for the classes and the other racers in your class. The goal is to have classes where anyone in the class stands a better than average chance of finishing in the top three at any given race.

If you feel that you are being placed in a class where you don’t belong let the Scoring Staff know. If you want to ride in a class other than the one assigned, please let the Scoring Staff know. No system is perfect so Staff do not rely solely on the AP. Also, if you did not race in very many events, the calculated AP for you might not be accurate. Like any software, it handles 90% correctly however Scoring Staff will look at the ones that fall out and determine the best place for that racer.

If any racer’s Advancement Percentile puts them into a different class than their age puts them into, they need to ride in the AP class, not the Age class. Racers can petition the officers to ride in a different class if they wish, however AP are very accurate.

Understanding Breakout Points

Once a racer has 10 breakout points, they will be moved up.

Example 1:

Donald Duck, his class AP is 92.0% – 82.1%
Race 1 = 93.5, that is 92.5 – 92 = 1.0 breakout points.
Race 2 = 92.5, that is 92.5 – 92 = 1.5 breakout points.
Race 3 = 94, that is 94 – 92 = 2 + 1.5 = 3.5 breakout points.
Race 4 = 98.9, that is 98.9 – 92 = 6.9 + 3.5 = 10.4 breakout points.

Donald Duck will be moved up to the next higher class.

Example 2:
Mickey Mouse, his class AP is 82.0% – 75.1%
Race 1 = 87.2, this is 87.2 – 82 = 5.2 breakout points.
Race 2 = 89.3, that is 89.3 – 82 = 7.3 + 5.2 = 12.5 breakout points.
Mickey Mouse will be moved up to the next higher class.
Also, Mickey Mouse’s age makes him eligible to ride in the C Senior class, however he voluntarily moved up to B Vet 35+ for the year, but as you can see here, he clearly should be riding in the A Vet 35+ class, maybe even in the A Open class.

Say a racer’s AP forces them to move up during the season, the software will go back and calculate the standings as if they had been riding in the correct class all year.


Mickey Mouse is moved from B Open to A Open.
B Open 
Mickey Mouse Points: 22, 22, 22
Other racers Points are not impacted by the move and stay the same.
A Open 
Donald Duck
. Points 22, 22, 20
Daffy Duck
. Points 20, 18, 22
. Points 18, 17, 18
Mickey Mouse 
. Points 18, 17, 20

As you can see Mickey received the points he would have gotten had he been riding in A Open, however the other racers in the class points were not impacted.

Ultimately the AP helps the AHSCS Scoring Staff to help ensure fair competition at the races. If you have any questions about the AP ask a Series Officer or the Scoring Staff.

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