| Halpin vs King | 8–16 | 33.33% |
| Halpin vs Clive | 13–10 | 56.52% |
| Halpin vs Miary Zo | 9–13 | 40.91% |
| Halpin vs Armor King | 8–11 | 42.11% |
| Halpin vs Steve | 8–9 | 47.06% |
| Halpin vs Leroy | 9–7 | 56.25% |
| Halpin vs Hwoarang | 7–7 | 50.00% |
| Halpin vs Dragunov | 8–6 | 57.14% |
| Halpin vs Azucena | 5–9 | 35.71% |
| Halpin vs Kazuya | 7–5 | 58.33% |
| Halpin vs Lars | 4–6 | 40.00% |
| Halpin vs Heihachi | 5–5 | 50.00% |
| Halpin vs Law | 3–6 | 33.33% |
| Halpin vs Jin | 7–2 | 77.78% |
| Halpin vs Bryan | 4–5 | 44.44% |
| Halpin vs Lili | 5–4 | 55.56% |
| Halpin vs Shaheen | 6–2 | 75.00% |
| Halpin vs Reina | 4–4 | 50.00% |
| Halpin vs Yoshimitsu | 4–3 | 57.14% |
| Halpin vs Asuka | 3–4 | 42.86% |
| Halpin vs Nina | 3–4 | 42.86% |
| Halpin vs Paul | 3–3 | 50.00% |
| Halpin vs Raven | 2–4 | 33.33% |
| Halpin vs Lidia | 2–4 | 33.33% |
| Halpin vs Victor | 2–2 | 50.00% |
| Halpin vs Devil Jin | 0–3 | 0.00% |
| Halpin vs Feng | 0–3 | 0.00% |
| Halpin vs Fahkumram | 1–2 | 33.33% |
| Halpin vs Jack-8 | 2–0 | 100.00% |
| Halpin vs Alisa | 2–0 | 100.00% |
| Halpin vs Kuma | 1–1 | 50.00% |
| Halpin vs Jun | 0–2 | 0.00% |
| Halpin vs Eddy | 0–2 | 0.00% |
| Halpin vs Lee | 0–1 | 0.00% |
| Halpin vs Zafina | 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.