Full name: Seiichiro Kashio
Original name: 柏尾 誠一郎
Gender: Male
Born: January 2, 1892 in Osaka, Osaka, Japan
Died: September 6, 1962
Country:
Japan
Sport: Tennis
Medals: 1 Silver (1 Total)
| Games | Age | City | Sport | Event | Team | NOC | Rank | Medal | |
|---|---|---|---|---|---|---|---|---|---|
| 1920 Summer | 28 | Antwerpen | Tennis | Men's Singles | Japan | JPN | 9T | ||
| 1920 Summer | 28 | Antwerpen | Tennis | Men's Doubles | Japan | JPN | 2 | Silver |
| Games | Age | City | Sport | Team | NOC | Phase | Unit | Rank | Date | Result | SW |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1920 Summer | 28 | Antwerpen | Tennis | Japan | JPN | Round Three | Match #6 | 2 | Dodd (RSA) 3, Kashio (JPN) 2 | 2 | |
| 1920 Summer | 28 | Antwerpen | Tennis | Japan | JPN | Round Two | Match #11 | 1 | Kashio (JPN) 3, Tegner (DEN) 0 | 3 |
| Games | Age | City | Sport | Team | NOC | Partner | Phase | Unit | Rank | Date | Result | SW |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1920 Summer | 28 | Antwerpen | Tennis | Japan | JPN | Ichiya Kumagae | Final Round | Match 1/2 | 2 | GBR-2 3, JPN 1 | 1 | |
| 1920 Summer | 28 | Antwerpen | Tennis | Japan | JPN | Ichiya Kumagae | Semi-Finals | Match #1 | 1 | JPN 3, FRA-1 1 | 3 | |
| 1920 Summer | 28 | Antwerpen | Tennis | Japan | JPN | Ichiya Kumagae | Quarter-Finals | Match #2 | 1 | JPN 3, RSA-1 1 | 3 | |
| 1920 Summer | 28 | Antwerpen | Tennis | Japan | JPN | Ichiya Kumagae | Round Two | Match #3 | 1 | JPN 3, BEL-3 0 | 3 |