| IAmJoyBoy vs Reina | 11–11 | 50.00% |
| IAmJoyBoy vs Jin | 3–11 | 21.43% |
| IAmJoyBoy vs Eddy | 4–7 | 36.36% |
| IAmJoyBoy vs Kazuya | 3–6 | 33.33% |
| IAmJoyBoy vs King | 3–5 | 37.50% |
| IAmJoyBoy vs Yoshimitsu | 5–3 | 62.50% |
| IAmJoyBoy vs Asuka | 3–5 | 37.50% |
| IAmJoyBoy vs Lili | 4–4 | 50.00% |
| IAmJoyBoy vs Hwoarang | 3–4 | 42.86% |
| IAmJoyBoy vs Steve | 2–5 | 28.57% |
| IAmJoyBoy vs Devil Jin | 5–2 | 71.43% |
| IAmJoyBoy vs Victor | 2–4 | 33.33% |
| IAmJoyBoy vs Dragunov | 1–4 | 20.00% |
| IAmJoyBoy vs Law | 0–4 | 0.00% |
| IAmJoyBoy vs Jun | 0–4 | 0.00% |
| IAmJoyBoy vs Bryan | 0–2 | 0.00% |
| IAmJoyBoy vs Jack-8 | 0–2 | 0.00% |
| IAmJoyBoy vs Lars | 0–2 | 0.00% |
| IAmJoyBoy vs Alisa | 2–0 | 100.00% |
| IAmJoyBoy vs Xiaoyu | 2–0 | 100.00% |
| IAmJoyBoy vs Leroy | 0–2 | 0.00% |
| IAmJoyBoy vs Azucena | 2–0 | 100.00% |
| IAmJoyBoy vs Shaheen | 1–0 | 100.00% |
| IAmJoyBoy vs Panda | 0–1 | 0.00% |
| IAmJoyBoy vs Raven | 0–1 | 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.