Back in Canberra at the University of Canberra, the walls of the Inspire Centre and the Teaching Commons have idea paint.
I like the idea of writing on walls to share ideas. I am not sure if this means I am responsible for any decline in the production of butchers’ paper.
Here at the Challenge Conference, the organisers have set up three graffiti walls.
Tim Dellor was the Master of Ceremonies for the day at the Challenge Conference. He noted that this was an invitation Conference.
Hugh Morris was the first speaker at the Conference. Hugh has been the Managing Director of England Cricket since October 2007. Hugh noted that 131 Level 4 coaches were in attendance. He added that there are 60 coaches in the program at the moment.
His theme was Balancing Stability and Change.
In the second session of the morning, Challenges and Conventions, Steve Bull and Andy Flower discussed coaching and performance. Their session was a video recording of a conversation held away from the Conference.
Ralph Hippolyte and Bertrand Theraulaz presented An Introduction to the Action Type Approach in the final session of the morning’s program. This was the first of two presentations by them at the Conference. The Action Types Approach explores how the brain and the body connect together to coordinate and adapt through movement. I was very interested in their discussion of the “motor signature” of each individual and the tests they use to reveal motor aptitudes and profiles. I am keen to learn more about the personalisation and differentiation possibilities of this work. Ralph and Bertrand have been working with English Cricket for some time.
The afternoon session started with a discussion between Steve Bull and Andrew Strauss of Leading to a Winning Environment. In their conversation Steve and Andrew considered:
The remainder of the afternoon program offered four workshops. These were facilitated by Chris Grant, Dave Alred, Nathan Leamon and myself.
The Day concluded with a Conference Dinner.
Introduction
I have great pleasure in presenting a second guest post on Clyde Street. In July, Greg Blood wrote about Human Performance, Sport Science and Technology.
Today, Krishna Tunga is sharing his work on the T20 World Cup in Sri Lanka.
Krishna and I have been corresponding for a number of years about observing and analysing cricket.
He is the author of the allthatcricket.com blog.
T20 World Cup
In this Tournament, the team that has batted first has averaged 155 runs (162, if the 7 over reduced game is omitted). At the last T20WC, at end of 12 games the average score was 149 for the team batting first.
When considering both innings, there have been 8 occasion when teams scored more than 170 runs.
The Scoring Rate for the Tournament is 1.70 runs per ball.
A Boundary has been scored every 6.36.
To date only Pakistan has won the toss and the game.
There have been 20 Dropped Catches. Fourteen of these missed catches were by lower ranked teams (including Zimbabwe and Bangaladesh). 10 of these dropped catches came before the 10th over, and 10 came after the 10th over.
Of the 134 wickets that have fallen in 12 games, spinners (including part-time spinners) have taken 45 of these (33.58%).
There have been 12Maiden overs: 3 came while batting first and 7 came between the 6-10 over period.
The Top 4 batters in each team have contributed 67.36% of the total team’s score.
Scoring more than 50 runs : out of 26 scores of more than 50, openers have scored 4 of them. 18 of the 50+ scores came while chasing.
Partnerships: there have been seventeen 50+ partnerships, 5 were for the opening stand (4 came while chasing). The average opening stand is 28.00.
Phases of the game: average runs scored at end of 6 overs is 45. This is the best in two years. The average falls to 65 at the end of the 10th over. It increases to 100 at end of 15th over. The bottleneck appears to be between the 7th and 10th overs where batsmen slow down (while chasing). 5 maiden overs were bowled in this period.
Big overs (more than 10 runs): in the first five games of the Tournament, there was very little action (especially for the team to bat first) in the first 6 overs of the innings. Very few ‘big overs’ were conceded. During these first 5 games, in the power play the first team tobat saw only 6.67% (2/30 Overs) of big overs and overall it was 16.67% (10/60 Overs ). The total big overs in all 20 overs was 23.50%(47/200 Overs).
Here is what happened after 12 games. Below is percentile of big overs (> 10runs/over) in each phase.
| Phases | 1st Bat | 2nd Bat | Total |
| 0-6 overs | 26.38% | 25.75% | 26.10% |
| 7-10overs | 26.66% | 10.81% | 19.50% |
| 11-15overs | 30.90% | 23.30% | 27.60% |
| 16-20 overs | 50.84% | 44.00% | 48.80% |
Average runs scored have been:
|
Over |
Avg runs in each over 1st Bat |
Average runs in each over 2nd bat |
|
1 |
5.33 |
5.91 |
|
2 |
5.92 |
7.82 |
|
3 |
6.92 |
7.45 |
|
4 |
6.5 |
9.82 |
|
5 |
11.4 |
7.91 |
|
6 |
8.92 |
6.45 |
|
7 |
6.83 |
5.18 |
|
8 |
8.09 |
5.7 |
|
9 |
8.27 |
6.2 |
|
10 |
7.09 |
5.9 |
|
11 |
6.27 |
5.44 |
|
12 |
6 |
7.11 |
|
13 |
9.73 |
6 |
|
14 |
8.64 |
8 |
|
15 |
7.91 |
6.63 |
|
16 |
7.18 |
9.71 |
|
17 |
9.55 |
10 |
|
18 |
9.45 |
6.5 |
|
19 |
13.2 |
10.3 |
|
20 |
12.7 |
4.5 |
Implications?
If top order batsmen can keep their heads, and not lose more than 1 wicket in the powerplay, a score above 150 can be achieved. A score of 170 will be challenging, and is an equivalent of 300 score in ODIs.
For bowlers apart from picking up early wickets, the key for them would between the 6th and 10th overs, where they can strike hard and bowl maiden overs which will elevate the asking rate to more than 10 runs per over and climbing, as they reach last phase.
Photo Credit
I find the quality and quantity of website data about sport performance staggering.
I wrote about the possibilities of secondary data analysis at the Asian Football Cup 2011.
Recently I have been looking at data from the ICC Cricket World Cup and noticed this Cricinfo game summary:
There is a dropped catch icon 
and a wicket icon that provide links to text summaries of the event.
I have been looking at some rugby union sites too.
Foxtel have a record of game events in Super Rugby that I have found particularly useful in tracing sequence of scores:
The RSB Six Nations’ website provides a data report of each game available for download:
I like the elegant simplicity of the Cricinfo graphic, the concise information in the Foxtel graphic and the detail in the RSB Six Nations’ website data.
I acknowledge that these are secondary sources but they do provide a great permanent record for investigation. Perhaps it is my fascination with Edward Tufte‘s work has nourished my interest in visualisation.
Photo Credit
Two Test Matches have been completed in the 2010-2011 Ashes Series. The Series is offering some excellent examples of the importance of batting partnerships as foundations for winning performance.
I have been collecting information about batting partnerships from Cricinfo‘s excellent coverage of the matches.
At present there is a very clear pattern of performance.
Twenty-two of Australia’s partnerships to date have produced less than thirty runs for each partnership. Five partnerships have produced no runs. Five of England’s partnerships have produced more than a hundred runs each.
Performance in the First Test in Brisbane has developed into a trend in the Second Test in Adelaide. Australia’s wrapper of early order partnerships and late order runs that has been characteristic of the team is absent at present. In the Second Test the innings have been wrapped by low personal scores and partnerships.
The next Test Match is in Perth. I wonder if this is where the current issues facing the Australian team started in 2008 against the visiting South African team. A Wikepedia articles observes that:
South Africa achieved the second highest successful run chase in Test cricket history, losing only the wicket of Kallis (57) on their way to 414-4. AB de Villiers (106*) and debutant JP Duminy (50*) put on 111 for the fifth wicket to take the visitors to victory. Australia had a poor day in the field, taking only one wicket.
The Third Test becomes a great opportunity for those interested in performance to monitor the role probability plays in winning outcomes. Both teams are on different tracks at the moment and for the first time in many years in Australia, England hold the destiny of the Ashes.
Clyde Street 