| Sasaki Kojiro vs Jin | 153–120 | 56.04% |
| Sasaki Kojiro vs Dragunov | 155–108–1 | 58.94% |
| Sasaki Kojiro vs Hwoarang | 138–103 | 57.26% |
| Sasaki Kojiro vs Bryan | 149–88 | 62.87% |
| Sasaki Kojiro vs Reina | 118–89 | 57.00% |
| Sasaki Kojiro vs Kazuya | 133–68 | 66.17% |
| Sasaki Kojiro vs Lee | 99–98 | 50.25% |
| Sasaki Kojiro vs Lars | 115–72 | 61.50% |
| Sasaki Kojiro vs King | 105–80 | 56.76% |
| Sasaki Kojiro vs Yoshimitsu | 122–62 | 66.30% |
| Sasaki Kojiro vs Law | 103–69 | 59.88% |
| Sasaki Kojiro vs Devil Jin | 104–64 | 61.90% |
| Sasaki Kojiro vs Steve | 96–68 | 58.54% |
| Sasaki Kojiro vs Lili | 89–58 | 60.54% |
| Sasaki Kojiro vs Feng | 86–54 | 61.43% |
| Sasaki Kojiro vs Asuka | 72–67 | 51.80% |
| Sasaki Kojiro vs Jun | 88–43 | 67.18% |
| Sasaki Kojiro vs Victor | 77–52 | 59.69% |
| Sasaki Kojiro vs Paul | 81–46 | 63.78% |
| Sasaki Kojiro vs Azucena | 68–54 | 55.74% |
| Sasaki Kojiro vs Xiaoyu | 78–42 | 65.00% |
| Sasaki Kojiro vs Heihachi | 66–50 | 56.90% |
| Sasaki Kojiro vs Claudio | 67–38 | 63.81% |
| Sasaki Kojiro vs Leo | 61–43 | 58.65% |
| Sasaki Kojiro vs Eddy | 48–54 | 47.06% |
| Sasaki Kojiro vs Nina | 59–42 | 58.42% |
| Sasaki Kojiro vs Jack-8 | 56–35 | 61.54% |
| Sasaki Kojiro vs Leroy | 46–45 | 50.55% |
| Sasaki Kojiro vs Raven | 58–33 | 63.74% |
| Sasaki Kojiro vs Fahkumram | 47–39 | 54.65% |
| Sasaki Kojiro vs Zafina | 39–45 | 46.43% |
| Sasaki Kojiro vs Shaheen | 40–35 | 53.33% |
| Sasaki Kojiro vs Alisa | 37–32 | 53.62% |
| Sasaki Kojiro vs Clive | 41–23 | 64.06% |
| Sasaki Kojiro vs Panda | 30–22 | 57.69% |
| Sasaki Kojiro vs Kuma | 22–26 | 45.83% |
| Sasaki Kojiro vs Lidia | 31–16 | 65.96% |
| Sasaki Kojiro vs Anna | 26–13 | 66.67% |
| Sasaki Kojiro vs Armor King | 6–6 | 50.00% |
| Sasaki Kojiro vs Miary Zo | 1–2 | 33.33% |
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.