| Harold vs Reina | 18–3 | 85.71% |
| Harold vs Clive | 19–2 | 90.48% |
| Harold vs Hwoarang | 11–4 | 73.33% |
| Harold vs Lidia | 13–2 | 86.67% |
| Harold vs King | 11–3 | 78.57% |
| Harold vs Eddy | 11–2 | 84.62% |
| Harold vs Yoshimitsu | 8–4 | 66.67% |
| Harold vs Jin | 10–2 | 83.33% |
| Harold vs Asuka | 6–5 | 54.55% |
| Harold vs Jun | 7–4 | 63.64% |
| Harold vs Lee | 8–2 | 80.00% |
| Harold vs Kazuya | 9–0 | 100.00% |
| Harold vs Dragunov | 9–0 | 100.00% |
| Harold vs Heihachi | 9–0 | 100.00% |
| Harold vs Paul | 8–0 | 100.00% |
| Harold vs Law | 6–2 | 75.00% |
| Harold vs Claudio | 4–3 | 57.14% |
| Harold vs Victor | 7–0 | 100.00% |
| Harold vs Lars | 4–2 | 66.67% |
| Harold vs Azucena | 5–1 | 83.33% |
| Harold vs Steve | 5–0 | 100.00% |
| Harold vs Lili | 5–0 | 100.00% |
| Harold vs Raven | 4–1 | 80.00% |
| Harold vs Jack-8 | 3–1 | 75.00% |
| Harold vs Xiaoyu | 2–1 | 66.67% |
| Harold vs Alisa | 1–2 | 33.33% |
| Harold vs Shaheen | 3–0 | 100.00% |
| Harold vs Kuma | 1–2 | 33.33% |
| Harold vs Feng | 1–1 | 50.00% |
| Harold vs Leo | 2–0 | 100.00% |
| Harold vs Panda | 1–1 | 50.00% |
| Harold vs Devil Jin | 1–0 | 100.00% |
| Harold vs Nina | 1–0 | 100.00% |
| Harold vs Leroy | 0–1 | 0.00% |
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.