Notification of interest

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Betfair Group plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

ü

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to thenotification obligation: iii

Andrew Black

4. Full name of shareholder(s)  (if different from 3.):iv

Andrew Black

Jane Black

The Madeleine Jane Black Bare Trust

The Dora Elizabeth Black Bare Trust

The Edgar Anthony Wilson Black Bare Trust

The Oliver James Patrick Bare Trust

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

27 October 2010

6. Date on which issuer notified:

N/A

7. Threshold(s) that is/are crossed orreached: vi, vii

From 11.71% to 10.37%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

Ordinary shares:

GB00B44JTH01

12,354,159

12,354,159

10,833,801

10,833,801

254,472

10.13%

0.24%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

11,088,273

10.37 %

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

Jane Black, The Madeleine Jane Black Bare Trust, The Dora Elizabeth Black Bare Trust, The Edgar Anthony Wilson Black Bare Trust and The Oliver James Patrick Bare Trust each hold ordinary shares in the company and are indirectly controlled by Andrew Black.

None of Jane Black, The Madeleine Jane Black Bare Trust, The Dora Elizabeth Black Bare Trust, The Edgar Anthony Wilson Black Bare Trust and The Oliver James Patrick Bare Trust holds 3% or more of the ordinary shares in the company.

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will ceaseto hold:

N/A

12. Date on which proxy holder will cease to holdvoting rights:

N/A

13. Additional information:

N/A

14. Contact name:

Cindy Kalsi

15. Contact telephone number:

+44 20 8834 8000