| 2021 US National Table Tennis Championships
 Kai Zarehbin
 Wins
| Opponent - Click name for results | USATT # | Rating | Format | Event - Click event for draws and results | Scores | 
|---|
 | Spenser Minh Lam | 25844 | 2115 | RR | Men's Singles | 10,7,6 |  | Sean Reddy | 97894 | 1999 | RR | Men's Singles | 3,4,6 |  | Frank Yu | 218363 | 1127 | RR | Men's Singles | 5,5,3 |  | William Wu | 222838 | 2067 | RR | Boys' Singles U19 | 4,6,8 |  | Nicholas Kui | 222653 | 1995 | RR | Boys' Singles U19 | 8,3,5 |  | Ayush Badari | 222509 | 1331 | RR | Boys' Singles U19 | 8,9,8 |  | Robert Sun | 92671 | 2158 | RR | U2550 | 8,-9,8,5 |  | James Wu | 218830 | 1692 | RR | U2550 | 3,7,8 |  | Janusz Franeczek | 26185 | 2104 | RR | U2450 | 4,4,4 |  | Michael Du Plessis | 202887 | 1503 | RR | U2450 | 7,3,3 |  | Sean Chen | 211679 | 2330 | RR | 21 & U Men's Singles | 5,10,6 |  | Joshua Acevedo | 220482 | 2076 | RR | 21 & U Men's Singles | 5,7,3 |  | Kenny Au | 223163 | 2019 | RR | 21 & U Men's Singles | 2,3,6 | 
 
  Losses| Opponent - Click name for results | USATT # | Rating | Format | Event - Click event for draws and results | Scores | 
|---|
 | Jeff Ruiz | 93102 | 2290 | SE | Men's Singles-Prelims | -9,-11,7,7,8 |  | Henrik Zhang | 87832 | 2293 | SE | Boys' Singles U19-Prelims | -7,10,8,7 |  | Sean Chen | 211679 | 2330 | SE | U2550-Prelims | 6,5,-8,-7,5 |  | Nathan Lee | 92628 | 2060 | RR | U2450 | 9,13,5 |  | Sid Naresh | 84903 | 2513 | SE | 21 & U Men's Singles-Prelims | 7,13,7 | 
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