Here's the critical bit of the whole scoring system, the actual scoring of the events. Each event is assigned a particular event supervisor. That judge can visit the “events” page of the “competition” area of the competition to score the event. Competition organizers can edit scoring information for any event in their competition.

Avogadro allows the capturing of two scores for each school entered in each event, a “raw” score and a “final” score. Raw scores vary depending on the type of event and the means of scoring. In a written test event, this number may be the final number of correct answers/points that team received. In timed events, this number can represent the number of seconds the team took to finish. The event scoring page provides a checkmark to indicate that in this event a low raw score is better (timed events), and Avogadro will rank the schools appropriately. Raw scores allow a wide range of numbers to be entered including negative numbers and decimal numbers. Raw scores have a full range of -999,999,999.999999999 to 999,999,999.999999999 (nine digits right and left of the decimal point, positive or negative). Ties are not allowed in Raw score values, and Avogadro will not allow the entering of final score values until all ties have been resolved and all entered schools have a value. To break ties, it is advised to use more decimal places to separate out which team is above the other.

For some events, contestants are broken up into various “tiers” based on large goals met during the event, and while one school may do very well in terms of raw score, they need to be put in a lower tier of contestants and not given the high final score. For events having tiered results like this, there are drop-down menus allowing up to ten tiers of entrants for each competition. Teams in “Tier I” will be ranked highest (ordered by Raw score either ascending or descending, according to the check flag) and teams in “Tier X” will be ranked lowest. If an event doesn't use tiers, leaving all teams in the same tier (“Tier I” by default) will rank teams appropriately. The “Tier” indications are not shown on the public results page, only the raw and final scores are shown.

Avogadro will also accept a few special coded raw score values:

• DQ: Teams should be Disqualified or “DQ” only for misbehavior (to include excessive use of improper or vulgar language) or cheating. Input “DQ” as the raw score and note on the score sheet the reason why teams were disqualified.
• NS: If a team does not show up or does not make an honest attempt to participate, input a No Show or “NS” for the raw score. This includes teams who may be present but display no preparation for the competition.
• P: Teams making an honest attempt to participate that cannot be assigned a raw score because of time, mechanical failure, wrong dimensions, etc. Input “P” for Participation for the raw score.

These values are used by various final-score-determining methods to automatically assign a final score.

After all raw scores are entered and Avogadro has verified that there no ties or invalid entries, Avogadro will sort all the schools (in either ascending or descending order, depending on the checkmark on the raw scores entry form). Avogadro allows for several ways to determine the final score of the competing schools, which is set by the competition organizers.

• National Scoring: Used by the National-level Science Olympiad competition. Schools are sorted by their raw score, and the first place school receives 1 point, the second place school 2 points, third place 3, all the way down to the last place entrant receiving final points equal to the number of schools in that event. For P/NS/DQ teams, the value n is determined, where n is equal to the total number of schools entered in the whole competition. Then, teams marked “P” receive n points, “NS” receives n+1, and “DQ” receives n+2. Hence, event supervisors have no editing control over the final score values; Avogadro shows the final values to the event supervisors sto allow them a chance to catch a mistake in the sorting of the raw scores before submitting. After all events are tallied, the school with the lowest final point total wins the competition.
• Small School Scoring: Designed to be less severe than the 'National' method, this scoring method gives schools that do poorly in one event a chance of still ranking highly in the final standing. Final scores are automatically assigned for schools finishing in first through ninth place for the event. The first place school receives 11 final points, the second place school 10, the third place school 9, down to the ninth place school receiving 3 points. For schools placing lower than ninth place, the event judge must decide if they are to receive 3, 1, or 0 (zero) points. These generally fall along the lines of the P/NS/DQ ranks used by the National standard (a school “Participated” gets 3 points, “No Show” receives 1, and “Disqualified” receives 0). Avogadro will default to assigning these values to thusly marked teams, but event supervisors can change them before submitting. After all events are tallied, the school with the highest final point total wins the competition.

Event scores are visible to organizers via the public “competition results” page, though public visitors can't view it until the appropriate config is set. Event supervisors can go back and edit scoring information if a mistake is made, until the competition is closed and results are shown to the public.