| Ryo Harkness vs Kazuya | 79–64 | 55.24% |
| Ryo Harkness vs Bryan | 84–49 | 63.16% |
| Ryo Harkness vs Jin | 64–58 | 52.46% |
| Ryo Harkness vs Steve | 73–46 | 61.34% |
| Ryo Harkness vs Hwoarang | 55–63 | 46.61% |
| Ryo Harkness vs King | 64–50 | 56.14% |
| Ryo Harkness vs Dragunov | 48–57 | 45.71% |
| Ryo Harkness vs Fahkumram | 62–38 | 62.00% |
| Ryo Harkness vs Yoshimitsu | 49–33 | 59.76% |
| Ryo Harkness vs Law | 28–51 | 35.44% |
| Ryo Harkness vs Lili | 50–22 | 69.44% |
| Ryo Harkness vs Victor | 38–23 | 62.30% |
| Ryo Harkness vs Reina | 23–36 | 38.98% |
| Ryo Harkness vs Paul | 37–18 | 67.27% |
| Ryo Harkness vs Devil Jin | 26–29 | 47.27% |
| Ryo Harkness vs Raven | 21–34 | 38.18% |
| Ryo Harkness vs Anna | 32–22 | 59.26% |
| Ryo Harkness vs Lars | 35–18 | 66.04% |
| Ryo Harkness vs Heihachi | 24–26 | 48.00% |
| Ryo Harkness vs Feng | 22–27 | 44.90% |
| Ryo Harkness vs Nina | 29–15 | 65.91% |
| Ryo Harkness vs Eddy | 22–19 | 53.66% |
| Ryo Harkness vs Claudio | 33–7 | 82.50% |
| Ryo Harkness vs Armor King | 9–30 | 23.08% |
| Ryo Harkness vs Jun | 18–20 | 47.37% |
| Ryo Harkness vs Asuka | 23–14 | 62.16% |
| Ryo Harkness vs Clive | 19–13 | 59.38% |
| Ryo Harkness vs Azucena | 14–15 | 48.28% |
| Ryo Harkness vs Xiaoyu | 17–10 | 62.96% |
| Ryo Harkness vs Lee | 9–18 | 33.33% |
| Ryo Harkness vs Lidia | 16–9 | 64.00% |
| Ryo Harkness vs Shaheen | 11–13 | 45.83% |
| Ryo Harkness vs Jack-8 | 16–7 | 69.57% |
| Ryo Harkness vs Alisa | 13–7 | 65.00% |
| Ryo Harkness vs Leo | 12–6 | 66.67% |
| Ryo Harkness vs Kuma | 11–5 | 68.75% |
| Ryo Harkness vs Panda | 11–3 | 78.57% |
| Ryo Harkness vs Leroy | 7–3 | 70.00% |
| Ryo Harkness vs Zafina | 7–0 | 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.