| Seif Al Helouw vs Reina | 37–39 | 48.68% |
| Seif Al Helouw vs Kazuya | 33–37 | 47.14% |
| Seif Al Helouw vs Jin | 34–34 | 50.00% |
| Seif Al Helouw vs King | 41–24 | 63.08% |
| Seif Al Helouw vs Bryan | 25–34 | 42.37% |
| Seif Al Helouw vs Steve | 22–23 | 48.89% |
| Seif Al Helouw vs Law | 18–19 | 48.65% |
| Seif Al Helouw vs Heihachi | 15–21 | 41.67% |
| Seif Al Helouw vs Jun | 20–15 | 57.14% |
| Seif Al Helouw vs Lili | 16–18 | 47.06% |
| Seif Al Helouw vs Anna | 16–16 | 50.00% |
| Seif Al Helouw vs Hwoarang | 14–16 | 46.67% |
| Seif Al Helouw vs Lee | 10–18 | 35.71% |
| Seif Al Helouw vs Dragunov | 9–17 | 34.62% |
| Seif Al Helouw vs Yoshimitsu | 10–15 | 40.00% |
| Seif Al Helouw vs Paul | 6–18 | 25.00% |
| Seif Al Helouw vs Eddy | 17–7 | 70.83% |
| Seif Al Helouw vs Armor King | 13–11 | 54.17% |
| Seif Al Helouw vs Nina | 6–14 | 30.00% |
| Seif Al Helouw vs Clive | 12–8 | 60.00% |
| Seif Al Helouw vs Asuka | 4–14 | 22.22% |
| Seif Al Helouw vs Devil Jin | 6–12 | 33.33% |
| Seif Al Helouw vs Lars | 11–6 | 64.71% |
| Seif Al Helouw vs Alisa | 10–7 | 58.82% |
| Seif Al Helouw vs Claudio | 9–6 | 60.00% |
| Seif Al Helouw vs Azucena | 7–8 | 46.67% |
| Seif Al Helouw vs Raven | 7–8 | 46.67% |
| Seif Al Helouw vs Feng | 7–7 | 50.00% |
| Seif Al Helouw vs Lidia | 7–7 | 50.00% |
| Seif Al Helouw vs Victor | 6–5 | 54.55% |
| Seif Al Helouw vs Xiaoyu | 4–5 | 44.44% |
| Seif Al Helouw vs Leroy | 3–6 | 33.33% |
| Seif Al Helouw vs Jack-8 | 2–6 | 25.00% |
| Seif Al Helouw vs Kuma | 4–4 | 50.00% |
| Seif Al Helouw vs Zafina | 3–4 | 42.86% |
| Seif Al Helouw vs Shaheen | 5–1 | 83.33% |
| Seif Al Helouw vs Panda | 3–3 | 50.00% |
| Seif Al Helouw vs Leo | 0–5 | 0.00% |
| Seif Al Helouw vs Miary Zo | 3–2 | 60.00% |
| Seif Al Helouw vs Fahkumram | 1–3 | 25.00% |
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.