| KOYAMAさん vs Fahkumram | 33–25 | 56.90% |
| KOYAMAさん vs King | 32–19 | 62.75% |
| KOYAMAさん vs Bryan | 28–12 | 70.00% |
| KOYAMAさん vs Dragunov | 22–15 | 59.46% |
| KOYAMAさん vs Jin | 20–16 | 55.56% |
| KOYAMAさん vs Reina | 19–16 | 54.29% |
| KOYAMAさん vs Law | 18–15 | 54.55% |
| KOYAMAさん vs Hwoarang | 20–12 | 62.50% |
| KOYAMAさん vs Victor | 11–20 | 35.48% |
| KOYAMAさん vs Steve | 17–12 | 58.62% |
| KOYAMAさん vs Paul | 18–10 | 64.29% |
| KOYAMAさん vs Xiaoyu | 14–14 | 50.00% |
| KOYAMAさん vs Anna | 14–14 | 50.00% |
| KOYAMAさん vs Armor King | 21–5 | 80.77% |
| KOYAMAさん vs Lili | 14–11 | 56.00% |
| KOYAMAさん vs Heihachi | 12–13 | 48.00% |
| KOYAMAさん vs Asuka | 17–7 | 70.83% |
| KOYAMAさん vs Kazuya | 14–9 | 60.87% |
| KOYAMAさん vs Clive | 7–16 | 30.43% |
| KOYAMAさん vs Lee | 11–10 | 52.38% |
| KOYAMAさん vs Jun | 8–13 | 38.10% |
| KOYAMAさん vs Claudio | 6–11 | 35.29% |
| KOYAMAさん vs Feng | 7–9 | 43.75% |
| KOYAMAさん vs Alisa | 5–11 | 31.25% |
| KOYAMAさん vs Lidia | 5–10 | 33.33% |
| KOYAMAさん vs Nina | 7–7 | 50.00% |
| KOYAMAさん vs Kuma | 9–5 | 64.29% |
| KOYAMAさん vs Yoshimitsu | 8–5 | 61.54% |
| KOYAMAさん vs Devil Jin | 7–6 | 53.85% |
| KOYAMAさん vs Zafina | 8–5 | 61.54% |
| KOYAMAさん vs Leo | 6–6 | 50.00% |
| KOYAMAさん vs Raven | 6–6 | 50.00% |
| KOYAMAさん vs Shaheen | 4–7 | 36.36% |
| KOYAMAさん vs Azucena | 5–6 | 45.45% |
| KOYAMAさん vs Eddy | 6–3 | 66.67% |
| KOYAMAさん vs Lars | 4–2 | 66.67% |
| KOYAMAさん vs Jack-8 | 3–1 | 75.00% |
| KOYAMAさん vs Panda | 4–0 | 100.00% |
| KOYAMAさん vs Leroy | 3–0 | 100.00% |
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.