Statistics for Men's International Rugby Union
| ||||
| Games played: | 204 | |||
| Games won: | 103 | |||
| Games lost: | 97 | |||
| Games drawn: | 4 | |||
| Most wins in a row: | 6 | |||
| Most losses in a row: | 7 | |||
| Teams played: | 30 | |||
| Teams beaten: | 20 | |||
| Teams lost to: | 20 | |||
| Largest points for: | 155 (155 - 3) | |||
| Largest points against: | 145 (17 - 145) | |||
| Largest winning margin: | 152 (155 - 3) | |||
| Largest losing margin: | 128 (17 - 145) | |||
| Total points for: | 6,852 | |||
| Total points against: | 5,461 | |||
| Average points for: | 33.59 | |||
| Average points against: | 26.77 | |||
| Average points difference: | +6.82 | |||
| Teams played by Japan | |||||
| Opponent | Games | Wins | Losses | Draws | Avg Points Diff |
| 28 | 21 | 6 | 1 | 23.93 | |
| 22 | 18 | 4 | 0 | 29.77 | |
| 21 | 11 | 8 | 2 | 0.05 | |
| 19 | 6 | 12 | 1 | -8.42 | |
| 14 | 3 | 11 | 0 | -9.07 | |
| 14 | 7 | 7 | 0 | -2.86 | |
| 13 | 2 | 11 | 0 | -19.15 | |
| 8 | 8 | 0 | 0 | 78.38 | |
| 8 | 0 | 8 | 0 | -47.38 | |
| 5 | 1 | 4 | 0 | -13.20 | |
| 5 | 0 | 5 | 0 | -33.60 | |
| 5 | 5 | 0 | 0 | 79.00 | |
| 4 | 0 | 4 | 0 | -40.50 | |
| 4 | 0 | 4 | 0 | -22.00 | |
| 4 | 3 | 1 | 0 | 4.00 | |
| 4 | 3 | 1 | 0 | 30.00 | |
| 3 | 3 | 0 | 0 | 78.67 | |
| 3 | 0 | 3 | 0 | -20.00 | |
| 3 | 0 | 3 | 0 | -50.33 | |
| 3 | 3 | 0 | 0 | 79.33 | |
| 2 | 2 | 0 | 0 | 14.00 | |
| 2 | 0 | 2 | 0 | -102.00 | |
| 2 | 2 | 0 | 0 | 19.00 | |
| 2 | 2 | 0 | 0 | 107.00 | |
| 1 | 0 | 1 | 0 | -53.00 | |
| 1 | 0 | 1 | 0 | -2.00 | |
| 1 | 0 | 1 | 0 | -43.00 | |
| 1 | 1 | 0 | 0 | 30.00 | |
| 1 | 1 | 0 | 0 | 31.00 | |
| 1 | 1 | 0 | 0 | 44.00 | |