| Kobayashi vs Jin | 19–31 | 38.00% |
| Kobayashi vs Reina | 19–25 | 43.18% |
| Kobayashi vs King | 17–23 | 42.50% |
| Kobayashi vs Eddy | 9–27 | 25.00% |
| Kobayashi vs Kazuya | 14–18 | 43.75% |
| Kobayashi vs Lee | 16–10 | 61.54% |
| Kobayashi vs Dragunov | 14–11 | 56.00% |
| Kobayashi vs Heihachi | 7–15 | 31.82% |
| Kobayashi vs Steve | 9–11 | 45.00% |
| Kobayashi vs Asuka | 6–14 | 30.00% |
| Kobayashi vs Azucena | 7–13 | 35.00% |
| Kobayashi vs Armor King | 8–11 | 42.11% |
| Kobayashi vs Law | 6–12 | 33.33% |
| Kobayashi vs Lidia | 10–8 | 55.56% |
| Kobayashi vs Clive | 9–8 | 52.94% |
| Kobayashi vs Hwoarang | 2–14 | 12.50% |
| Kobayashi vs Bryan | 4–12 | 25.00% |
| Kobayashi vs Nina | 9–7 | 56.25% |
| Kobayashi vs Claudio | 9–5 | 64.29% |
| Kobayashi vs Lili | 7–5 | 58.33% |
| Kobayashi vs Yoshimitsu | 5–6 | 45.45% |
| Kobayashi vs Devil Jin | 5–6 | 45.45% |
| Kobayashi vs Jun | 3–7 | 30.00% |
| Kobayashi vs Paul | 1–8 | 11.11% |
| Kobayashi vs Lars | 4–5 | 44.44% |
| Kobayashi vs Shaheen | 3–4 | 42.86% |
| Kobayashi vs Victor | 2–4 | 33.33% |
| Kobayashi vs Kuma | 2–3 | 40.00% |
| Kobayashi vs Fahkumram | 2–3 | 40.00% |
| Kobayashi vs Alisa | 2–2 | 50.00% |
| Kobayashi vs Raven | 2–1 | 66.67% |
| Kobayashi vs Anna | 2–1 | 66.67% |
| Kobayashi vs Miary Zo | 2–1 | 66.67% |
| Kobayashi vs Leo | 0–2 | 0.00% |
| Kobayashi vs Leroy | 0–2 | 0.00% |
| Kobayashi vs Xiaoyu | 0–1 | 0.00% |
| Kobayashi vs Jack-8 | 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.