| Reiko vs Jin | 145–76–1 | 65.61% |
| Reiko vs Kazuya | 142–70 | 66.98% |
| Reiko vs King | 106–71 | 59.89% |
| Reiko vs Bryan | 106–66 | 61.63% |
| Reiko vs Steve | 93–65 | 58.86% |
| Reiko vs Heihachi | 83–72 | 53.55% |
| Reiko vs Law | 85–59 | 59.03% |
| Reiko vs Hwoarang | 88–53 | 62.41% |
| Reiko vs Dragunov | 83–54 | 60.58% |
| Reiko vs Reina | 78–54 | 59.09% |
| Reiko vs Xiaoyu | 78–49 | 61.42% |
| Reiko vs Paul | 67–52 | 56.30% |
| Reiko vs Lars | 52–66 | 44.07% |
| Reiko vs Victor | 74–43 | 63.25% |
| Reiko vs Devil Jin | 62–50 | 55.36% |
| Reiko vs Yoshimitsu | 52–56 | 48.15% |
| Reiko vs Lidia | 69–39 | 63.89% |
| Reiko vs Jun | 48–59 | 44.86% |
| Reiko vs Feng | 55–50 | 52.38% |
| Reiko vs Lili | 49–53 | 48.04% |
| Reiko vs Nina | 65–37 | 63.73% |
| Reiko vs Asuka | 51–45 | 53.12% |
| Reiko vs Lee | 45–51 | 46.88% |
| Reiko vs Raven | 47–42 | 52.81% |
| Reiko vs Azucena | 55–31 | 63.95% |
| Reiko vs Eddy | 48–34 | 58.54% |
| Reiko vs Alisa | 37–32 | 53.62% |
| Reiko vs Leroy | 34–30 | 53.12% |
| Reiko vs Jack-8 | 39–24 | 61.90% |
| Reiko vs Claudio | 36–23 | 61.02% |
| Reiko vs Kuma | 31–17 | 64.58% |
| Reiko vs Leo | 24–21 | 53.33% |
| Reiko vs Zafina | 27–13 | 67.50% |
| Reiko vs Clive | 17–19 | 47.22% |
| Reiko vs Shaheen | 12–18 | 40.00% |
| Reiko vs Panda | 15–3 | 83.33% |
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.