| EfficientInK vs Kazuya | 32–13 | 71.11% |
| EfficientInK vs Reina | 29–5 | 85.29% |
| EfficientInK vs King | 23–10 | 69.70% |
| EfficientInK vs Heihachi | 24–9 | 72.73% |
| EfficientInK vs Eddy | 20–12 | 62.50% |
| EfficientInK vs Jun | 26–4 | 86.67% |
| EfficientInK vs Yoshimitsu | 22–7 | 75.86% |
| EfficientInK vs Lili | 17–12 | 58.62% |
| EfficientInK vs Bryan | 16–12 | 57.14% |
| EfficientInK vs Nina | 19–7 | 73.08% |
| EfficientInK vs Jin | 16–8 | 66.67% |
| EfficientInK vs Law | 15–6 | 71.43% |
| EfficientInK vs Steve | 17–1 | 94.44% |
| EfficientInK vs Lars | 10–6 | 62.50% |
| EfficientInK vs Lidia | 13–3 | 81.25% |
| EfficientInK vs Hwoarang | 11–4 | 73.33% |
| EfficientInK vs Jack-8 | 10–4 | 71.43% |
| EfficientInK vs Devil Jin | 5–9 | 35.71% |
| EfficientInK vs Asuka | 10–3 | 76.92% |
| EfficientInK vs Victor | 12–1 | 92.31% |
| EfficientInK vs Paul | 5–7 | 41.67% |
| EfficientInK vs Leroy | 8–4 | 66.67% |
| EfficientInK vs Azucena | 11–1 | 91.67% |
| EfficientInK vs Panda | 7–4 | 63.64% |
| EfficientInK vs Kuma | 5–4 | 55.56% |
| EfficientInK vs Claudio | 3–5 | 37.50% |
| EfficientInK vs Clive | 6–2 | 75.00% |
| EfficientInK vs Feng | 7–0 | 100.00% |
| EfficientInK vs Dragunov | 7–0 | 100.00% |
| EfficientInK vs Alisa | 5–1 | 83.33% |
| EfficientInK vs Leo | 4–1 | 80.00% |
| EfficientInK vs Raven | 3–2 | 60.00% |
| EfficientInK vs Xiaoyu | 3–0 | 100.00% |
| EfficientInK vs Shaheen | 3–0 | 100.00% |
| EfficientInK vs Zafina | 3–0 | 100.00% |
| EfficientInK vs Lee | 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.