| Wellkai vs King | 36–30 | 54.55% |
| Wellkai vs Reina | 26–28 | 48.15% |
| Wellkai vs Kazuya | 30–23 | 56.60% |
| Wellkai vs Steve | 27–25 | 51.92% |
| Wellkai vs Heihachi | 25–27 | 48.08% |
| Wellkai vs Jin | 23–26 | 46.94% |
| Wellkai vs Hwoarang | 22–19 | 53.66% |
| Wellkai vs Law | 21–18 | 53.85% |
| Wellkai vs Bryan | 10–21 | 32.26% |
| Wellkai vs Lili | 13–16 | 44.83% |
| Wellkai vs Jun | 15–13 | 53.57% |
| Wellkai vs Eddy | 12–16 | 42.86% |
| Wellkai vs Yoshimitsu | 9–16 | 36.00% |
| Wellkai vs Lee | 13–12 | 52.00% |
| Wellkai vs Dragunov | 10–13 | 43.48% |
| Wellkai vs Leo | 13–10 | 56.52% |
| Wellkai vs Clive | 7–16 | 30.43% |
| Wellkai vs Azucena | 11–11 | 50.00% |
| Wellkai vs Paul | 14–7 | 66.67% |
| Wellkai vs Devil Jin | 3–18 | 14.29% |
| Wellkai vs Lars | 7–14 | 33.33% |
| Wellkai vs Asuka | 11–9 | 55.00% |
| Wellkai vs Lidia | 10–10 | 50.00% |
| Wellkai vs Nina | 10–9 | 52.63% |
| Wellkai vs Raven | 10–8 | 55.56% |
| Wellkai vs Feng | 3–12 | 20.00% |
| Wellkai vs Alisa | 4–11 | 26.67% |
| Wellkai vs Claudio | 4–11 | 26.67% |
| Wellkai vs Victor | 3–12 | 20.00% |
| Wellkai vs Xiaoyu | 6–6 | 50.00% |
| Wellkai vs Jack-8 | 5–7 | 41.67% |
| Wellkai vs Kuma | 3–5 | 37.50% |
| Wellkai vs Zafina | 2–5 | 28.57% |
| Wellkai vs Leroy | 4–3 | 57.14% |
| Wellkai vs Shaheen | 2–3 | 40.00% |
| Wellkai vs Panda | 2–3 | 40.00% |
| Wellkai vs Armor King | 3–2 | 60.00% |
| Wellkai vs Anna | 0–3 | 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.