Holding(s) in Company

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

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

X

Other (please specify):

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

SBI HOLDINGS, INC.

SBIH UK LIMITED

PORTILLION HOLDINGS LIMITED

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

SBI HOLDINGS, INC. (pending registration of legal title transferred as noted in 9 below)

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

28 April 2011

6. Date on which issuer notified:

28 April 2011

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

--

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

7,274,577

7,274,577

0

0

7,274,577

0%

6.9%

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

7,274,577

6.9%

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

Whereas:

(i) SBIH UK Limited and Portillion Holdings Limited are undertakings controlled by SBI Holdings, Inc.

(ii) prior to the events the subject of this notification SBI Holdings, Inc. directly held 5,965,077 Ordinary Shares in Betfair Group plc

(iii) other entities controlled by SBI Holdings, Inc. hold 1,309,500 Ordinary Shares in Betfair Group plc

(iv) SBI Holdings, Inc. has beneficially transferred to SBIH UK Limited 5,965,077 Ordinary Shares in Betfair Group plc (with power of attorney pending registration of the legal transfer of such shares)

(v) SBIH UK Limited has beneficially transferred to Portillion Holdings Limited 5,931,233 Ordinary Shares in Betfair Group plc (with power of attorney pending registration of the legal transfer of such shares)

Proxy Voting:

10. Name of the proxy holder:

--

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

--

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

--

13. Additional information:

This notification is made by each of SBI Holdings, Inc, SBIH UK Limited and Portillion Holdings Limited in accordance with DTR 5.2.3(2)

14. Contact name:

AKIHIRO ITOH

15. Contact telephone number:

81-3-6229-0122

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in sharesxxii

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

SBI HOLDINGS, INC.SBI UK LIMITED

PORTILLION HOLDINGS LIMITED

Contact address

(registered office for legal entities)

Izumi Garden Tower 19F, 1-6-1 Roppongi Minato-kuTokyo 106-6019 Japan

Phone number & email

[email protected]

81-3-6229-0122

Other useful information

(at least legal representative for legal persons)

Morrison & Foerster (UK) LLP

Citypoint, One Ropemaker Street, London EC2Y 9AW, UK

B: Identity of the notifier, if applicable

Full name

Akihiro Itoh

Contact address

Izumi Garden Tower 19F, 1-6-1 Roppongi Minato-kuTokyo 106-6019 Japan

Phone number & email

[email protected]

81-3-6229-0122

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

Deputy General Counsel, legal department

C: Additional information

For notes on how to complete form TR-1 please see the FSA website.