A test of earlier claims about how many Pokémon card sets come out each year, in English and in Japan, from 2015 to 2025

How it’s built

1. English: each year's sets were sorted into main and special sets. Main sets were exactly 4 every year; with specials, 5 to 7.
2. Japan: the official product list gives 7 to 13 products a year, matching the earlier count for 2015–2024.
3. An earlier 'cards per English set' ratio was dropped as not comparable.

What we assumed

• The research's own sorting of English sets into main and special is right.The split follows a Wikipedia list of sets; the research grades this classification as an estimate.
• Two 2025 English releases count as two sets.Black Bolt and White Flare were released as separate sets, which takes 2025 to 7 and breaks the earlier '5–6' claim.
• Japan's 2025 is 11 listed products but 9 distinct sets.Some listed products are re-packs of other sets; which count is used depends on the definition.

Sanity check

The finding that release cadence was flat while printing rose about 2.7 times holds on any of the counts.

Where it comes from

Our calculation from other figures in the trainer’s notes:

• EstimatePrint against set cadence, year to March 2017-year to March 2026
• EstimateEnglish-language card game releases per year (main, special), calendar 2015-2026
• EstimateJapan pack releases per year (all pack types), calendar 2015-2026