| Event type | 2003/04 season | 2005/06 season | Seasons combined | |||
| Number of events | Incidence (95% CI); events per game | Number of events | Incidence (95% CI); events per game | Number of events | Incidence (95% CI); events per game | |
| Collision | 374 | 15.0 (13.6–16.6) | 368 | 14.7 (13.3–16.3) | 742 | 14.8 (13.8–15.9) |
| Lineout | 826 | 33.0 (30.8–35.3) | 734 | 29.4 (27.4–31.6) | 1560 | 31.2 (29.7–32.8) |
| Maul (all) | 465 | 18.6 (17.0–20.4) | 456 | 18.2 (16.6–20.0) | 921 | 18.4 (17.3–19.6) |
| Not collapsed | 134 | 5.4 (4.6–6.4) | 170 | 6.8 (5.9–7.9) | 304 | 6.1 (5.5–6.8) |
| Collapsed | 331 | 13.2 (11.9–14.7) | 286 | 11.4 (10.2–12.8) | 617 | 12.3 (11.4–13.3) |
| Ruck | 3464 | 138.6 (134.1–143.3) | 3660 | 146.4 (141.7–151.2) | 7124 | 142.5 (139.2–145.9) |
| Scrum (all) | 749 | 30.0 (27.9–32.2) | 698 | 27.9 (25.9–30.1) | 1447 | 28.9 (26.3–31.7) |
| Not collapsed | 642 | 25.7 (23.8–27.8) | 556 | 22.2 (20.4–24.1) | 1198 | 24.0 (22.7–25.4) |
| collapsed | 107 | 4.3 (3.6–5.2) | 142 | 5.7 (4.8–6.7) | 249 | 5.0 (4.4–5.7) |
| Tackle | 5385 | 215.4 (209.7–221.1) | 5663 | 226.5 (220.7–232.5) | 11 048 | 221.0 (215.9–226.2) |
| All events | 11 263 | 450.5 (442.3–458.9) | 11 579 | 463.2 (454.8–471.7) | 22 842 | 456.8 (450.9–462.8) |