| IDKWHY vs King | 4–19 | 17.39% |
| IDKWHY vs Jin | 6–17 | 26.09% |
| IDKWHY vs Hwoarang | 5–14 | 26.32% |
| IDKWHY vs Law | 3–13 | 18.75% |
| IDKWHY vs Asuka | 0–14 | 0.00% |
| IDKWHY vs Steve | 2–10 | 16.67% |
| IDKWHY vs Yoshimitsu | 4–7 | 36.36% |
| IDKWHY vs Reina | 4–7 | 36.36% |
| IDKWHY vs Azucena | 6–5 | 54.55% |
| IDKWHY vs Paul | 1–9 | 10.00% |
| IDKWHY vs Lili | 2–8 | 20.00% |
| IDKWHY vs Jun | 2–8 | 20.00% |
| IDKWHY vs Lee | 2–6 | 25.00% |
| IDKWHY vs Nina | 0–7 | 0.00% |
| IDKWHY vs Bryan | 2–4 | 33.33% |
| IDKWHY vs Kazuya | 2–4 | 33.33% |
| IDKWHY vs Alisa | 0–6 | 0.00% |
| IDKWHY vs Leroy | 2–4 | 33.33% |
| IDKWHY vs Heihachi | 0–6 | 0.00% |
| IDKWHY vs Lars | 0–4 | 0.00% |
| IDKWHY vs Claudio | 0–4 | 0.00% |
| IDKWHY vs Zafina | 0–4 | 0.00% |
| IDKWHY vs Devil Jin | 0–3 | 0.00% |
| IDKWHY vs Xiaoyu | 0–2 | 0.00% |
| IDKWHY vs Dragunov | 0–2 | 0.00% |
| IDKWHY vs Leo | 0–2 | 0.00% |
| IDKWHY vs Eddy | 0–2 | 0.00% |
| IDKWHY vs Lidia | 0–2 | 0.00% |
| IDKWHY vs Clive | 0–2 | 0.00% |
| IDKWHY vs Fahkumram | 2–0 | 100.00% |
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.