| Koomer vs King | 53–17 | 75.71% |
| Koomer vs Kazuya | 31–28 | 52.54% |
| Koomer vs Steve | 28–31 | 47.46% |
| Koomer vs Reina | 33–24 | 57.89% |
| Koomer vs Jin | 25–25 | 50.00% |
| Koomer vs Law | 23–26 | 46.94% |
| Koomer vs Dragunov | 27–16 | 62.79% |
| Koomer vs Hwoarang | 13–27 | 32.50% |
| Koomer vs Bryan | 27–10 | 72.97% |
| Koomer vs Yoshimitsu | 17–14 | 54.84% |
| Koomer vs Lars | 14–14 | 50.00% |
| Koomer vs Paul | 15–12 | 55.56% |
| Koomer vs Lili | 16–10 | 61.54% |
| Koomer vs Lee | 13–13 | 50.00% |
| Koomer vs Jun | 12–13 | 48.00% |
| Koomer vs Azucena | 20–5 | 80.00% |
| Koomer vs Eddy | 11–14 | 44.00% |
| Koomer vs Shaheen | 10–11 | 47.62% |
| Koomer vs Asuka | 11–8 | 57.89% |
| Koomer vs Raven | 7–10 | 41.18% |
| Koomer vs Xiaoyu | 9–7 | 56.25% |
| Koomer vs Leroy | 7–9 | 43.75% |
| Koomer vs Victor | 7–9 | 43.75% |
| Koomer vs Jack-8 | 10–5 | 66.67% |
| Koomer vs Devil Jin | 7–7 | 50.00% |
| Koomer vs Feng | 5–9 | 35.71% |
| Koomer vs Leo | 5–6 | 45.45% |
| Koomer vs Kuma | 4–7 | 36.36% |
| Koomer vs Nina | 5–4 | 55.56% |
| Koomer vs Zafina | 6–3 | 66.67% |
| Koomer vs Alisa | 4–4 | 50.00% |
| Koomer vs Lidia | 5–2 | 71.43% |
| Koomer vs Claudio | 0–4 | 0.00% |
| Koomer vs Panda | 0–4 | 0.00% |
| Koomer vs Clive | 0–2 | 0.00% |
| Koomer vs Heihachi | 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.