| Son Chaeyoung vs King | 23–22 | 51.11% |
| Son Chaeyoung vs Reina | 22–14 | 61.11% |
| Son Chaeyoung vs Hwoarang | 18–15 | 54.55% |
| Son Chaeyoung vs Paul | 16–11 | 59.26% |
| Son Chaeyoung vs Jun | 11–9 | 55.00% |
| Son Chaeyoung vs Devil Jin | 9–10 | 47.37% |
| Son Chaeyoung vs Law | 10–8 | 55.56% |
| Son Chaeyoung vs Bryan | 9–9 | 50.00% |
| Son Chaeyoung vs Steve | 9–9 | 50.00% |
| Son Chaeyoung vs Kazuya | 7–8 | 46.67% |
| Son Chaeyoung vs Jin | 5–9 | 35.71% |
| Son Chaeyoung vs Xiaoyu | 6–7 | 46.15% |
| Son Chaeyoung vs Leo | 4–9 | 30.77% |
| Son Chaeyoung vs Victor | 5–8 | 38.46% |
| Son Chaeyoung vs Lidia | 7–6 | 53.85% |
| Son Chaeyoung vs Lili | 9–3 | 75.00% |
| Son Chaeyoung vs Alisa | 6–4 | 60.00% |
| Son Chaeyoung vs Dragunov | 7–2 | 77.78% |
| Son Chaeyoung vs Azucena | 7–2 | 77.78% |
| Son Chaeyoung vs Eddy | 7–2 | 77.78% |
| Son Chaeyoung vs Nina | 5–3 | 62.50% |
| Son Chaeyoung vs Jack-8 | 4–3 | 57.14% |
| Son Chaeyoung vs Asuka | 4–3 | 57.14% |
| Son Chaeyoung vs Yoshimitsu | 5–1 | 83.33% |
| Son Chaeyoung vs Feng | 2–4 | 33.33% |
| Son Chaeyoung vs Raven | 2–4 | 33.33% |
| Son Chaeyoung vs Lars | 4–0 | 100.00% |
| Son Chaeyoung vs Leroy | 4–0 | 100.00% |
| Son Chaeyoung vs Shaheen | 2–1 | 66.67% |
| Son Chaeyoung vs Lee | 1–1 | 50.00% |
| Son Chaeyoung vs Zafina | 0–2 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.