Chart Rules

Recurrency

As of the chart dated December 3, 2016, the recurrency rules will be loosened:
  • 20 Weeks - Top 50
  • 52 Weeks - Top 25

Weighting

As of the chart dated December 3, 2016, the chart shall be weighted so as to help combat the mix of high-volatility and low-volatility present in the 2016 chart year. New songs shall be weighted at 1/3 of their raw points until they enter, subsequently regaining 1/3 of their point weight until week 4, where they shall experience normal weighting. It shall be as follows:
  • Top 40 - 1%
  • Top 20 - 2%
  • Top 10 - 3%
  • Top 5 - 4%
  • #1 - 5%
These weight demerits shall apply until the song reaches 25% of its raw point value. After 39 weeks, this cap goes down to 1%.

Votes

Votes are derived from the toptenpony monthly polls. As of the chart dated December 3, 2016, votes are applied over the course of 4 weeks in equal segments, then are pulled out in the following 8 weeks, also in equal segments.

Videos

As of the chart dated December 3, 2016, songs that have both an audio and music video clip counting towards views will have the music video's points will be a .1 increment less than the reported numbers per week.

Songs that only have a music video will decrement an additional 2% per week until it reaches the 25% cap.

If a video produces over 10,000 points for a song past the debut week, the song's raw points shall be permanently cut in half until it reaches is firmly under that milestone.

Eligibility

Songs that are based on popular non-pony songs are ineligible. Key word being "popular": if a song is based off an indie/regional track (e.g. Midnight Sparkle Musical Number, The Paladin), it may be eligible to enter.

Dating

Charts are dated in accordance with Billboard dating standard and are tracking the same equivalent period. This is to allow for direct comparison between dated weeks of the Trot 100, Hot 100, genre charts, and charts of Japan, UK, Canada, Germany, France, and China. As such, here's the date structure, with a template of a tracking week ending on January 1.

Friday, December 25 - Friday, January 1: Tracking period for data of a particular week
Friday, January 1: Data is collected and formulated.
Friday, January 1 - Tuesday, January 5: The highlights are revealed. (This part depends on my workload any given week)
Saturday, January 16: The date listed for a chart. In Billboard's case, this is because it's a print publication, and this is the approximate date when public storefronts begin selling the magazine with the corresponding charts. Though Trot 100 isn't (and most likely won't ever be) a print publication, it follows the same structure for comparison purposes.

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