| [HSPC] Kotomi vs King | 48–50 | 48.98% |
| [HSPC] Kotomi vs Kazuya | 53–45 | 54.08% |
| [HSPC] Kotomi vs Reina | 47–26–1 | 64.38% |
| [HSPC] Kotomi vs Jin | 33–31 | 51.56% |
| [HSPC] Kotomi vs Dragunov | 27–32 | 45.76% |
| [HSPC] Kotomi vs Bryan | 37–19 | 66.07% |
| [HSPC] Kotomi vs Lili | 36–19 | 65.45% |
| [HSPC] Kotomi vs Heihachi | 27–25 | 51.92% |
| [HSPC] Kotomi vs Jun | 28–23 | 54.90% |
| [HSPC] Kotomi vs Law | 26–24 | 52.00% |
| [HSPC] Kotomi vs Devil Jin | 23–17 | 57.50% |
| [HSPC] Kotomi vs Azucena | 19–19 | 50.00% |
| [HSPC] Kotomi vs Steve | 19–15 | 55.88% |
| [HSPC] Kotomi vs Asuka | 17–16 | 51.52% |
| [HSPC] Kotomi vs Eddy | 15–17 | 46.88% |
| [HSPC] Kotomi vs Paul | 18–13 | 58.06% |
| [HSPC] Kotomi vs Hwoarang | 15–16 | 48.39% |
| [HSPC] Kotomi vs Nina | 9–17 | 34.62% |
| [HSPC] Kotomi vs Jack-8 | 12–13 | 48.00% |
| [HSPC] Kotomi vs Lars | 15–10 | 60.00% |
| [HSPC] Kotomi vs Victor | 11–9 | 55.00% |
| [HSPC] Kotomi vs Yoshimitsu | 7–12 | 36.84% |
| [HSPC] Kotomi vs Lidia | 13–6 | 68.42% |
| [HSPC] Kotomi vs Kuma | 4–14 | 22.22% |
| [HSPC] Kotomi vs Feng | 7–10 | 41.18% |
| [HSPC] Kotomi vs Leroy | 5–11 | 31.25% |
| [HSPC] Kotomi vs Alisa | 9–4 | 69.23% |
| [HSPC] Kotomi vs Claudio | 3–9 | 25.00% |
| [HSPC] Kotomi vs Lee | 4–8 | 33.33% |
| [HSPC] Kotomi vs Armor King | 8–4 | 66.67% |
| [HSPC] Kotomi vs Xiaoyu | 5–3 | 62.50% |
| [HSPC] Kotomi vs Clive | 4–3 | 57.14% |
| [HSPC] Kotomi vs Raven | 2–4 | 33.33% |
| [HSPC] Kotomi vs Shaheen | 1–4 | 20.00% |
| [HSPC] Kotomi vs Zafina | 2–3 | 40.00% |
| [HSPC] Kotomi vs Panda | 0–4 | 0.00% |
| [HSPC] Kotomi vs Leo | 1–2 | 33.33% |
| [HSPC] Kotomi vs Anna | 1–0 | 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.