UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 9, 2018

HAYMAKER ACQUISITION CORP.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (212) 616-9600

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation to the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

On November 9, 2018, OneSpaWorld and Haymaker Acquisition Corp., a Delaware corporation (“Haymaker”), issued a joint press release announcing that the companies will host a meeting for the analyst and investment community on Thursday, November 15, 2018 at the Lotte New York Palace Hotel at 455 Madison Avenue, New York, NY to discuss their proposed business combination. The press release is attached hereto as Exhibit 99.1 and incorporated by reference herein.

Additional Information

In connection with the proposed transactions, OneSpaWorld Holdings Limited, an international business company incorporated under the laws of the Commonwealth of The Bahamas (“OSW Holdings”) intends to file a Registration Statement on Form S-4, which will include a preliminary prospectus of OSW Holdings and preliminary proxy statement of Haymaker. Haymaker will mail a definitive proxy statement/prospectus and other relevant documents to its stockholders. Investors and security holders of Haymaker are advised to read, when available, the proxy statement/prospectus in connection with Haymaker’s solicitation of proxies for its special meeting of stockholders to be held to approve the proposed transaction (and related matters) because the proxy statement/prospectus will contain important information about the proposed transaction and the parties to the proposed transaction. The definitive proxy statement/prospectus will be mailed to stockholders of Haymaker as of a record date to be established for voting on the proposed transaction. Stockholders will also be able to obtain copies of the proxy statement/prospectus, without charge, once available, at the SEC’s website at www.sec.gov or by directing a request to: Haymaker Acquisition Corp., 650 Fifth Avenue, Floor 10, New York, New York 10019.

Participants in the Solicitation

Haymaker, Steiner Leisure Limited, OSW Holdings, and their respective directors, executive officers, other members of management, and employees, under SEC rules, may be deemed to be participants in the solicitation of proxies of Haymaker’s stockholders in connection with the proposed transaction. Investors and security holders may obtain more detailed information regarding the names and interests in the proposed transaction of Haymaker’s directors and officers in Haymaker’s filings with the SEC, including Haymaker’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017, which was filed with the SEC on March 30, 2018, and such information will also be in the Registration Statement on Form S-4 to be filed with the SEC by OSW Holdings, which will include the proxy statement of Haymaker for the proposed transaction.

Disclaimer

This communication is for informational purposes only and is neither an offer to purchase, nor a solicitation of an offer to sell, subscribe for or buy any securities or the solicitation of any vote in any jurisdiction pursuant to the proposed transactions or otherwise, nor shall there be any sale, issuance or transfer or securities in any jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, and applicable regulations in The Bahamas.

(d) Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 9, 2018