| KJ42 vs Paul | 6–8 | 42.86% |
| KJ42 vs Devil Jin | 6–3 | 66.67% |
| KJ42 vs Jun | 4–5 | 44.44% |
| KJ42 vs King | 6–2 | 75.00% |
| KJ42 vs Bryan | 1–7 | 12.50% |
| KJ42 vs Feng | 5–3 | 62.50% |
| KJ42 vs Alisa | 1–7 | 12.50% |
| KJ42 vs Leo | 3–4 | 42.86% |
| KJ42 vs Hwoarang | 5–1 | 83.33% |
| KJ42 vs Asuka | 4–2 | 66.67% |
| KJ42 vs Heihachi | 3–3 | 50.00% |
| KJ42 vs Jin | 3–2 | 60.00% |
| KJ42 vs Steve | 1–4 | 20.00% |
| KJ42 vs Lars | 0–5 | 0.00% |
| KJ42 vs Reina | 2–3 | 40.00% |
| KJ42 vs Anna | 3–2 | 60.00% |
| KJ42 vs Kazuya | 2–2 | 50.00% |
| KJ42 vs Lili | 1–3 | 25.00% |
| KJ42 vs Dragunov | 0–4 | 0.00% |
| KJ42 vs Zafina | 2–2 | 50.00% |
| KJ42 vs Victor | 2–2 | 50.00% |
| KJ42 vs Claudio | 1–2 | 33.33% |
| KJ42 vs Kuma | 1–2 | 33.33% |
| KJ42 vs Azucena | 0–3 | 0.00% |
| KJ42 vs Clive | 1–2 | 33.33% |
| KJ42 vs Law | 2–0 | 100.00% |
| KJ42 vs Lee | 0–2 | 0.00% |
| KJ42 vs Eddy | 0–2 | 0.00% |
| KJ42 vs Fahkumram | 0–2 | 0.00% |
| KJ42 vs Yoshimitsu | 0–1 | 0.00% |
| KJ42 vs Nina | 1–0 | 100.00% |
| KJ42 vs Panda | 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.