United States securities and exchange commission logo June 13, 2024 Salman Khan Chief Financial Officer Marathon Digital Holdings, Inc. 101 NE Third Avenue, Suite 1200 Fort Lauderdale, FL 33301 Re: Marathon Digital Holdings, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Form 10-K for the Fiscal Year Ended December 31, 2022 Form 10-K for the Fiscal Year Ended December 31, 2023 File No. 001-36555 Dear Salman Khan: We have completed our review of your filings. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Technology cc: Zabi Nowaid