Hayward (HAYW) SC 13G Hayward / MSD CAPITAL L P ownership change

Exhibit 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree as follows:

(i) Each of them is individually eligible to use the Schedule 13G to which this Exhibit is attached, and such Schedule 13G is filed on behalf of each of them; and

(ii) Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

Date: September 23, 2024

MSD Capital, L.P.
By:	MSD Capital Management LLC
Its:	General Partner
By:	/s/ Marc R. Lisker
Name:	Marc R. Lisker
Title:	Manager
Michael S. Dell
By:	/s/ Marc R. Lisker
Name: Title:	Marc R. Lisker Attorney-in-Fact
MSD Portfolio L.P. - Investments
By:	MSD Capital, L.P.
Its:	General Partner
By:	MSD Capital Management LLC
Its:	General Partner
By:	/s/ Marc R. Lisker
Name:	Marc R. Lisker
Title:	Manager