| harper vs Kazuya | 29–5 | 85.29% |
| harper vs Jin | 20–12 | 62.50% |
| harper vs Reina | 14–8 | 63.64% |
| harper vs Lili | 11–10 | 52.38% |
| harper vs King | 16–3 | 84.21% |
| harper vs Feng | 7–11 | 38.89% |
| harper vs Jun | 12–5 | 70.59% |
| harper vs Yoshimitsu | 9–7 | 56.25% |
| harper vs Victor | 8–8 | 50.00% |
| harper vs Steve | 12–3 | 80.00% |
| harper vs Paul | 12–2 | 85.71% |
| harper vs Law | 11–2 | 84.62% |
| harper vs Hwoarang | 6–7 | 46.15% |
| harper vs Xiaoyu | 9–3 | 75.00% |
| harper vs Dragunov | 10–1 | 90.91% |
| harper vs Nina | 6–5 | 54.55% |
| harper vs Asuka | 6–4 | 60.00% |
| harper vs Bryan | 3–6 | 33.33% |
| harper vs Lars | 4–5 | 44.44% |
| harper vs Alisa | 4–5 | 44.44% |
| harper vs Azucena | 4–5 | 44.44% |
| harper vs Devil Jin | 4–4 | 50.00% |
| harper vs Shaheen | 4–4 | 50.00% |
| harper vs Leo | 1–6 | 14.29% |
| harper vs Eddy | 3–4 | 42.86% |
| harper vs Heihachi | 7–0 | 100.00% |
| harper vs Raven | 3–1 | 75.00% |
| harper vs Kuma | 2–1 | 66.67% |
| harper vs Leroy | 1–2 | 33.33% |
| harper vs Jack-8 | 2–0 | 100.00% |
| harper vs Claudio | 0–2 | 0.00% |
| harper vs Clive | 0–2 | 0.00% |
| harper vs Lee | 0–1 | 0.00% |
| harper vs Panda | 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.