| Diego Helena vs Eddy | 10–20 | 33.33% |
| Diego Helena vs Jin | 11–17 | 39.29% |
| Diego Helena vs Steve | 3–20 | 13.04% |
| Diego Helena vs King | 12–9 | 57.14% |
| Diego Helena vs Armor King | 6–9 | 40.00% |
| Diego Helena vs Kazuya | 5–9 | 35.71% |
| Diego Helena vs Victor | 2–12 | 14.29% |
| Diego Helena vs Reina | 5–7 | 41.67% |
| Diego Helena vs Lili | 8–3 | 72.73% |
| Diego Helena vs Lars | 4–6 | 40.00% |
| Diego Helena vs Lee | 2–7 | 22.22% |
| Diego Helena vs Azucena | 4–5 | 44.44% |
| Diego Helena vs Dragunov | 3–5 | 37.50% |
| Diego Helena vs Law | 2–5 | 28.57% |
| Diego Helena vs Leroy | 4–3 | 57.14% |
| Diego Helena vs Heihachi | 6–1 | 85.71% |
| Diego Helena vs Miary Zo | 0–6 | 0.00% |
| Diego Helena vs Nina | 2–3 | 40.00% |
| Diego Helena vs Paul | 0–4 | 0.00% |
| Diego Helena vs Asuka | 0–4 | 0.00% |
| Diego Helena vs Devil Jin | 0–4 | 0.00% |
| Diego Helena vs Jun | 0–4 | 0.00% |
| Diego Helena vs Hwoarang | 1–2 | 33.33% |
| Diego Helena vs Leo | 2–1 | 66.67% |
| Diego Helena vs Fahkumram | 1–2 | 33.33% |
| Diego Helena vs Claudio | 2–0 | 100.00% |
| Diego Helena vs Kuma | 0–2 | 0.00% |
| Diego Helena vs Zafina | 2–0 | 100.00% |
| Diego Helena vs Clive | 2–0 | 100.00% |
| Diego Helena vs Yoshimitsu | 0–1 | 0.00% |
| Diego Helena vs Alisa | 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.