| Helena Harper vs King | 61–7 | 89.71% |
| Helena Harper vs Law | 37–3 | 92.50% |
| Helena Harper vs Steve | 37–2 | 94.87% |
| Helena Harper vs Yoshimitsu | 31–7 | 81.58% |
| Helena Harper vs Lars | 31–7 | 81.58% |
| Helena Harper vs Bryan | 30–3 | 90.91% |
| Helena Harper vs Lili | 29–3 | 90.62% |
| Helena Harper vs Hwoarang | 24–5 | 82.76% |
| Helena Harper vs Kazuya | 23–6 | 79.31% |
| Helena Harper vs Reina | 26–3 | 89.66% |
| Helena Harper vs Feng | 21–5 | 80.77% |
| Helena Harper vs Eddy | 19–7 | 73.08% |
| Helena Harper vs Jin | 22–3 | 88.00% |
| Helena Harper vs Jun | 18–5 | 78.26% |
| Helena Harper vs Asuka | 20–2 | 90.91% |
| Helena Harper vs Lidia | 12–9–1 | 57.14% |
| Helena Harper vs Xiaoyu | 20–1 | 95.24% |
| Helena Harper vs Raven | 19–1 | 95.00% |
| Helena Harper vs Victor | 16–3 | 84.21% |
| Helena Harper vs Nina | 14–4 | 77.78% |
| Helena Harper vs Paul | 15–2 | 88.24% |
| Helena Harper vs Leroy | 14–3 | 82.35% |
| Helena Harper vs Devil Jin | 12–4 | 75.00% |
| Helena Harper vs Zafina | 11–4 | 73.33% |
| Helena Harper vs Azucena | 9–5 | 64.29% |
| Helena Harper vs Alisa | 12–1 | 92.31% |
| Helena Harper vs Lee | 10–3 | 76.92% |
| Helena Harper vs Dragunov | 9–3 | 75.00% |
| Helena Harper vs Kuma | 10–1 | 90.91% |
| Helena Harper vs Jack-8 | 7–3 | 70.00% |
| Helena Harper vs Leo | 4–4 | 50.00% |
| Helena Harper vs Claudio | 6–0 | 100.00% |
| Helena Harper vs Panda | 2–0 | 100.00% |
| Helena Harper vs Clive | 2–0 | 100.00% |
| Helena Harper vs Shaheen | 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.