| Koisugi vs Kazuya | 27–26 | 50.94% |
| Koisugi vs Jin | 32–19 | 62.75% |
| Koisugi vs Reina | 28–22 | 56.00% |
| Koisugi vs King | 21–25 | 45.65% |
| Koisugi vs Hwoarang | 19–20 | 48.72% |
| Koisugi vs Dragunov | 18–16 | 52.94% |
| Koisugi vs Devil Jin | 15–18 | 45.45% |
| Koisugi vs Bryan | 16–16 | 50.00% |
| Koisugi vs Lee | 12–15 | 44.44% |
| Koisugi vs Yoshimitsu | 16–9 | 64.00% |
| Koisugi vs Heihachi | 16–7 | 69.57% |
| Koisugi vs Jun | 11–11 | 50.00% |
| Koisugi vs Eddy | 13–9 | 59.09% |
| Koisugi vs Paul | 10–11 | 47.62% |
| Koisugi vs Law | 10–11 | 47.62% |
| Koisugi vs Steve | 15–6 | 71.43% |
| Koisugi vs Asuka | 10–8 | 55.56% |
| Koisugi vs Armor King | 7–11 | 38.89% |
| Koisugi vs Nina | 8–9 | 47.06% |
| Koisugi vs Lidia | 11–6 | 64.71% |
| Koisugi vs Lili | 8–5 | 61.54% |
| Koisugi vs Lars | 3–10 | 23.08% |
| Koisugi vs Alisa | 5–8 | 38.46% |
| Koisugi vs Xiaoyu | 7–5 | 58.33% |
| Koisugi vs Leo | 8–4 | 66.67% |
| Koisugi vs Victor | 10–1 | 90.91% |
| Koisugi vs Feng | 5–5 | 50.00% |
| Koisugi vs Leroy | 6–4 | 60.00% |
| Koisugi vs Azucena | 7–2 | 77.78% |
| Koisugi vs Kuma | 5–3 | 62.50% |
| Koisugi vs Claudio | 4–3 | 57.14% |
| Koisugi vs Raven | 4–3 | 57.14% |
| Koisugi vs Anna | 5–2 | 71.43% |
| Koisugi vs Jack-8 | 4–2 | 66.67% |
| Koisugi vs Shaheen | 3–2 | 60.00% |
| Koisugi vs Panda | 2–3 | 40.00% |
| Koisugi vs Miary Zo | 3–2 | 60.00% |
| Koisugi vs Clive | 2–1 | 66.67% |
| Koisugi vs Zafina | 1–1 | 50.00% |
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.