The International Rugby Board’s (IRB’s) Game Analysis Unit published a detailed statistical review/analysis of the 2010 Tri Nations.
The detailed report provides analysis of all aspects of play including;
Scoring
Winning margins
Impact of penalty goals on match results
Rate of try conceding
Source of tries
Try locations
Timing of tries and penalty goals
Ball in play and possession
Passing
Rucks and mauls
Kick-offs and restarts
Lineouts
Free kicks
Penalties conceded
Penalty options taken
Cards
Over the last year or so there has been increasing concern over the rules and shape of the modern game.
A large focus of this debate has centered on the lack of tries being scored, and the large amount of (aimless) kicking in matches.
TRIES
Both the Tri-Nations and 6 Nation competitions have seen a steady reduction in the number of tries being scored over the last decade. There has been about a 60-70% decrease since the beginning of the decade.
It is interesting how closely the two competitons mirror each other in terms of the number of tries scores, especially since in the southern hemisphere we criticise those up north for playing boring, unattractive rugby.
In the 2010 Tri-Nations, there were 52 tries scored.
Compared with the 27 in 2009, the number almost doubled!
All teams scored more tries in 2010 than 2009.
The percentage of points scored from tries increased from 34% in 2009 to 53% (However in 2008 it was 56%).
This reduced the points from penalties from 51% in 2009 to 32% (but less than the 25% in 2008).
Despite the large number of tries, matches were just as competitive.
One factor that could have improved the try-scoring rate was the lower number of kicks per hand which decreased from about 60 per game in 2009, to just 37 in 2010 (the lowest recorded since detailed game analysis started 2 decades ago).
Whilst the number of kicks were lowered, it was specifically kicks where the receiving play catches or picks up the ball with no pressure on him that has been the greatest concern. These have averaged about 30 per game, but during the 2010 Tri-Nations this was reduced to an average of 11 per game.
While the All Blacks scored 8 tries from possession gained within their own half, the Springboks could manage only 1. Meanwhile the Boks conceeded a staggering 12 tries from opponents who gained possession within their own half compared to just 1 of the All Blacks.
In 2010 1 in 3 tries came from possession obtained with the scoring teams half, compared with 2009 (1 in 9) and 2008 (1 in 5).
Almost half the tries were preceeded by 3 or fewer passes, and 70% of tries were preceeded by 3 or fewer second phases, indicating primary possession is still the best platform to attack from.
BALL IN PLAY MORE
With the reduction in aimless kicking during matches, it means the ball is in play more often and other facets of the game take on greater frequency and importance.
These contributed to the ball being in play more (45% or 36 mins) compared with 2009 (42% or 33 mins).
These facets increase the physicality and speed of the game, plaving a greater demand on the players and their physical conditioning. If the law interpretations stay this way, it could mean a change in tactics and game plans for players and coaches.
RUCKS AND MAULS
Rucks and mauls increased by over 40% (from 131 to 186 per game).
The rate of rucks and mauls was relatively similar for all 3 countries.
SET PIECES
The average number of scrums per game was 14 (2009=19).
PASSING
Passes went up by 35% (from 222 to 300 per game).
Both the All Blacks and Wallaby backs made 100% more passes than their forwards, yet the Bok backs managed only 24% more.
Both Australia and New Zealand made 33% more passes than the Boks, and had a higher rate of passes per minute of possession. SA (7.1), New Zealand (8.6) and Australia (9.0)
When analysing the difference it is evident that the Springbok backs make substantially less passes than their opponents (about 170 less passes)!
PENALTIES AND TRIES
The ratio of penalty goals to tries differed substantially from 2009.
In 2009 the ration was just over 2.5 penalty goals per try, yet 1 to 1 in 2010.
New Zealand were the highest penalised side in relation to their opponents yet had the least number of yellow cards.
KICKS
The Springboks kicked 50% more than the Wallabies.
The Boks kicked more than the other 2 teams for each minute they had the ball.
The All Blacks scored 8 tries from opposition kicks, but the Boks were unable to score any (Aus=1).
The Boks conceeded 6 tries from their own kicks yet the All Blacks only had 1 and Australia 2.
The Springboks had the most accurate goal-kicking missing just 2 attempts for a success ration of 94% compared with Australia (75%) and New Zealand (66%).
POINTS
The average number of points per game were 55, which was substantially more than 2006-09 (ranged from 40-46).