| KJ_123 vs Reina | 4–7 | 36.36% |
| KJ_123 vs Steve | 7–3 | 70.00% |
| KJ_123 vs Lars | 2–6 | 25.00% |
| KJ_123 vs King | 4–3 | 57.14% |
| KJ_123 vs Kazuya | 4–3 | 57.14% |
| KJ_123 vs Nina | 5–2 | 71.43% |
| KJ_123 vs Azucena | 3–4 | 42.86% |
| KJ_123 vs Heihachi | 4–3 | 57.14% |
| KJ_123 vs Yoshimitsu | 2–4 | 33.33% |
| KJ_123 vs Jin | 3–3 | 50.00% |
| KJ_123 vs Xiaoyu | 2–3 | 40.00% |
| KJ_123 vs Leroy | 3–2 | 60.00% |
| KJ_123 vs Eddy | 3–2 | 60.00% |
| KJ_123 vs Devil Jin | 0–4 | 0.00% |
| KJ_123 vs Feng | 3–1 | 75.00% |
| KJ_123 vs Lee | 1–3 | 25.00% |
| KJ_123 vs Victor | 2–2 | 50.00% |
| KJ_123 vs Hwoarang | 2–1 | 66.67% |
| KJ_123 vs Asuka | 1–2 | 33.33% |
| KJ_123 vs Lili | 3–0 | 100.00% |
| KJ_123 vs Shaheen | 0–3 | 0.00% |
| KJ_123 vs Kuma | 1–2 | 33.33% |
| KJ_123 vs Zafina | 1–2 | 33.33% |
| KJ_123 vs Raven | 1–2 | 33.33% |
| KJ_123 vs Paul | 0–2 | 0.00% |
| KJ_123 vs Law | 2–0 | 100.00% |
| KJ_123 vs Leo | 0–2 | 0.00% |
| KJ_123 vs Alisa | 0–2 | 0.00% |
| KJ_123 vs Jun | 0–2 | 0.00% |
| KJ_123 vs Jack-8 | 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.