| PumpkinheadJack vs King | 10–19 | 34.48% |
| PumpkinheadJack vs Steve | 21–7 | 75.00% |
| PumpkinheadJack vs Clive | 18–7 | 72.00% |
| PumpkinheadJack vs Reina | 14–9 | 60.87% |
| PumpkinheadJack vs Jin | 11–9 | 55.00% |
| PumpkinheadJack vs Yoshimitsu | 12–7 | 63.16% |
| PumpkinheadJack vs Xiaoyu | 9–10 | 47.37% |
| PumpkinheadJack vs Lidia | 7–10 | 41.18% |
| PumpkinheadJack vs Bryan | 5–11 | 31.25% |
| PumpkinheadJack vs Heihachi | 12–4 | 75.00% |
| PumpkinheadJack vs Dragunov | 8–7 | 53.33% |
| PumpkinheadJack vs Kazuya | 8–6 | 57.14% |
| PumpkinheadJack vs Lili | 7–7 | 50.00% |
| PumpkinheadJack vs Law | 4–8 | 33.33% |
| PumpkinheadJack vs Asuka | 3–9 | 25.00% |
| PumpkinheadJack vs Feng | 4–7 | 36.36% |
| PumpkinheadJack vs Lars | 5–6 | 45.45% |
| PumpkinheadJack vs Alisa | 3–8 | 27.27% |
| PumpkinheadJack vs Lee | 4–7 | 36.36% |
| PumpkinheadJack vs Victor | 7–4 | 63.64% |
| PumpkinheadJack vs Hwoarang | 5–4 | 55.56% |
| PumpkinheadJack vs Jun | 6–3 | 66.67% |
| PumpkinheadJack vs Paul | 3–4 | 42.86% |
| PumpkinheadJack vs Kuma | 4–3 | 57.14% |
| PumpkinheadJack vs Armor King | 4–3 | 57.14% |
| PumpkinheadJack vs Nina | 3–3 | 50.00% |
| PumpkinheadJack vs Fahkumram | 4–1 | 80.00% |
| PumpkinheadJack vs Devil Jin | 1–3 | 25.00% |
| PumpkinheadJack vs Leroy | 1–3 | 25.00% |
| PumpkinheadJack vs Raven | 3–1 | 75.00% |
| PumpkinheadJack vs Anna | 3–1 | 75.00% |
| PumpkinheadJack vs Jack-8 | 2–1 | 66.67% |
| PumpkinheadJack vs Azucena | 1–2 | 33.33% |
| PumpkinheadJack vs Leo | 0–2 | 0.00% |
| PumpkinheadJack vs Zafina | 0–2 | 0.00% |
| PumpkinheadJack vs Panda | 1–0 | 100.00% |
| PumpkinheadJack vs Eddy | 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.