| Name | S. Katayama |
| Country | Japan |
| DOB | 12.05.1989 |
| Season | Type | Rank | Titles | Won | Lost | Hard Won | Hard Lost | Clay Won | Clay Lost | Grass Won | Grass Lost |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | doubles | 1009 | 2 | 11 | 4 | 11 | 3 | 0 | 1 | ||
| 2022 | doubles | 989 | 0 | 1 | 1 | 1 | 1 | ||||
| 2016 | doubles | 621 | 0 | 1 | 2 | 1 | 2 | ||||
| 2015 | doubles | 536 | 0 | 1 | 2 | 1 | 2 | ||||
| 2014 | doubles | 444 | 0 | 0 | 1 | 0 | 1 | ||||
| 2013 | doubles | 594 | 0 | 1 | 2 | 1 | 2 | ||||
| 2012 | doubles | 882 | 0 | 0 | 1 | 0 | 1 | ||||
| 2022 | singles | 0 | 0 | 1 | 0 | 1 | |||||
| 2015 | singles | 751 | 0 | 2 | 2 | 2 | 2 | ||||
| 2014 | singles | 827 | 0 | 1 | 1 | 1 | 1 | ||||
| 2013 | singles | 660 | 1 | 18 | 11 | 16 | 10 | 2 | 1 | ||
| 2012 | singles | 653 | 1 | 9 | 3 | 9 | 3 | ||||
| 2011 | singles | 935 | 0 | 1 | 1 | 1 | 1 | ||||
| 2010 | singles | 946 | 0 | 0 | 1 | 0 | 1 | ||||
| 2023 | singles | 0 | 1 | 2 | 1 | 2 | |||||
| 2024 | doubles | 602 | 2 | 13 | 4 | 13 | 4 | ||||
| 2024 | singles | 1480 | 0 | 1 | 2 | 1 | 2 | ||||
| 2025 | doubles | 1004 | 2 | 10 | 6 | 10 | 6 | ||||
| 2025 | singles | 1418 | 0 | 3 | 4 | 3 | 4 |
| Name | Season | Type | Surface | Prize |
|---|---|---|---|---|
| Nishi Tokyo (ITF) | 2013 | singles | hard | $10,000 |
| Oarai (ITF) | 2012 | singles | hard | $15,000 |
| M25 Sapporo (ITF) | 2024 | doubles | hard | $25,000 |
| M15 Yanagawa 2 (ITF) | 2023 | doubles | hard | $15,000 |
| M25 Sapporo (ITF) | 2023 | doubles | hard | $25,000 |
| M15 Yanagawa City (ITF) | 2024 | doubles | hard | $15,000 |
| M15 Tokyo 2 (ITF) | 2025 | doubles | hard | $15,000 |
| M15 Yanagawa City (ITF) | 2025 | doubles | hard | $15,000 |
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