The battle of the spin giants
A few key numbers involving Chennai Super Kings, Royal Challengers Bangalore, and Johannesburg, the venue for the second semi-final of the IPL.
6 - Number of times Chennai have won in the nine games when they have batted first.
8.48 - Chennai's run-rate in the first six overs, which is second only to Deccan's. Chennai's average of 41.37 runs per wicket during this period is the best. Bangalore average 21.68 runs per wicket at a run rate of 6.45 in the first six overs.
414 - Runs scored by Chennai's opening pair, at an average of 31.85 per stand and 9.07 per over. Bangalore average 14.50 per partnership, and 5.77 per over - both are the worst by any team in this IPL.
10 - Number of times, in 14 games, that Bangalore's opening partnership hasn't gone past 10.
8.75 - Muttiah Muralitharan's bowling average against Bangalore. In eight overs against them, he has only gone for 35 runs and taken four wickets.
4.75 - Anil Kumble's economy rate against Chennai. In eight overs he has figures of 2 for 38.
125 - Number of runs Matthew Hayden has scored in two innings against Bangalore, for an average of 62.50 at a strike rate of 10.27 runs per over.
24 - Number of runs scored by Jacques Kallis, Bangalore's leading run-getter, against Chennai.
10 - Number of 50-plus scores for Chennai, with Hayden contributing half of them. Bangalore have eight, with Kallis getting three.
146 - The average score for the team batting first in night games in Johannesburg.
80% - The success rate for the team chasing in night games in Johannesburg - the team batting first has lost four out of five. The only side to buck the trend was Chennai, when they beat Delhi by 18 runs.
100% - The win percentage for Chennai and Bangalore at this venue in IPL 2009. Bangalore beat Mumbai and Delhi here, while Chennai beat Delhi.
24 - Wickets taken by spinners at the Wanderers in this tournament, at an average of 22.95 and an economy rate of 6.40. Fast bowlers have taken 36 wickets at 30.58 and an economy rate of 7.73.
S Rajesh is stats editor of Cricinfo