Win toss

& win match

Lose toss & win match

Draw

Lose match

Series Run Rate

Home

9.75

10.25

0

0

total runs scored / total wickets lost

Away

11.75

12.25

2

0

1.1 x total runs / total wickets

An example... 3 match series between Sri Lanka and England that completed in Dec 2003

Sri Lanka

England

Existing score before series began

X & Y

35.46

41.19

Total score available

X + Y

76.65

Test results

1 home win (away team won toss)

2 away draws

Match points

10.25

4

Total runs and wickets

1846/45

1437/56

Calculate run rates

41.02

add 10% = 28.23

Total scores gained from series

Q & R

51.27

32.23

Adjusted series total points to equal total points available

Q2 = Q * (X+Y)/(Q+R)  and

R2 = R * (X+Y)/(Q+R)

47.07

29.58

Series points worth...

T/(T+6) = G

3 tests = 3/(3+6) = 33.33%

New total

G*Q2 + (1-G)*X and

G*R2 + (1-G)*Y

1/3*47.07 + 2/3*35.46

1/3*29.58 + 2/3*41.19

39.33

37.32