| Rhum Koko vs King | 27–25 | 51.92% |
| Rhum Koko vs Steve | 32–18 | 64.00% |
| Rhum Koko vs Dragunov | 23–27 | 46.00% |
| Rhum Koko vs Paul | 31–18 | 63.27% |
| Rhum Koko vs Reina | 34–10 | 77.27% |
| Rhum Koko vs Jin | 30–12 | 71.43% |
| Rhum Koko vs Lars | 20–20 | 50.00% |
| Rhum Koko vs Lee | 19–20 | 48.72% |
| Rhum Koko vs Law | 28–9 | 75.68% |
| Rhum Koko vs Hwoarang | 25–12 | 67.57% |
| Rhum Koko vs Heihachi | 19–17 | 52.78% |
| Rhum Koko vs Xiaoyu | 19–16 | 54.29% |
| Rhum Koko vs Devil Jin | 17–14 | 54.84% |
| Rhum Koko vs Bryan | 18–12 | 60.00% |
| Rhum Koko vs Kazuya | 22–8 | 73.33% |
| Rhum Koko vs Asuka | 19–9 | 67.86% |
| Rhum Koko vs Nina | 14–14 | 50.00% |
| Rhum Koko vs Raven | 18–7 | 72.00% |
| Rhum Koko vs Yoshimitsu | 7–17 | 29.17% |
| Rhum Koko vs Alisa | 15–9 | 62.50% |
| Rhum Koko vs Jack-8 | 10–8 | 55.56% |
| Rhum Koko vs Claudio | 11–7 | 61.11% |
| Rhum Koko vs Azucena | 10–8 | 55.56% |
| Rhum Koko vs Lili | 11–6 | 64.71% |
| Rhum Koko vs Eddy | 9–5 | 64.29% |
| Rhum Koko vs Feng | 5–8 | 38.46% |
| Rhum Koko vs Clive | 6–7 | 46.15% |
| Rhum Koko vs Zafina | 5–7 | 41.67% |
| Rhum Koko vs Leo | 4–7 | 36.36% |
| Rhum Koko vs Victor | 8–3 | 72.73% |
| Rhum Koko vs Leroy | 2–8 | 20.00% |
| Rhum Koko vs Kuma | 6–3 | 66.67% |
| Rhum Koko vs Jun | 5–3 | 62.50% |
| Rhum Koko vs Shaheen | 5–2 | 71.43% |
| Rhum Koko vs Lidia | 2–4 | 33.33% |
| Rhum Koko vs Panda | 4–1 | 80.00% |
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.