| 2021 US National Table Tennis Championships
 Ryousuke Adachi
 Wins
| Opponent - Click name for results | USATT # | Rating | Format | Event - Click event for draws and results | Scores | 
|---|
 | Ali Ammar | 264944 | 1762 | RR | U1800 | -4,-7,7,7,8 | 
 
  Losses| Opponent - Click name for results | USATT # | Rating | Format | Event - Click event for draws and results | Scores | 
|---|
 | Sushant Lebaka | 220809 | 2361 | RR | U2450 | 3,7,3 |  | Ruslan Riabokoniev | 94469 | 2116 | RR | U2450 | 6,3,7 |  | Seema Cavale | 219686 | 2048 | RR | U2450 | 6,6,9 |  | Sakda Timsuwan | 65198 | 2251 | RR | U2300 | 4,2,4 |  | Anil Godhwani | 78688 | 2034 | RR | U2300 | -7,8,9,7 |  | Rick Mueller | 2655 | 1954 | RR | U2300 | 5,3,5 |  | Igor Falchuk | 95008 | 2169 | RR | U2200 | 7,7,10 |  | Michael Yeh | 220776 | 1856 | RR | U2000 | 6,6,1 |  | S.R. Wilhelm | 203151 | 1490 | RR | U2000 | 7,8,4 |  | Liren Zhang | 1157612 | 1464 | RR | U1800 | -10,9,-4,10,9 |  | Xianliang He | 256702 | 729 | RR | U1800 | -4,7,-11,5,8 | 
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