OMB APPROVAL ---------------------------------- OMB Number: 3235-0145 Expires: October 31, 2002 Estimated average burden hours per response...........14.90 ---------------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 23)* PINNACLE ENTERTAINMENT, INC. -------------------------------------------------------------------------------- (Name of Issuer) COMMON STOCK -------------------------------------------------------------------------------- (Title of Class of Securities) -------------------------------------------------------------------------------- 723456 10 9 -------------------------------------------------------------------------------- (CUSIP Number) JENNINGS J. NEWCOM DAVIS GRAHAM & STUBBS LLP 1550 17TH STREET, SUITE 500 DENVER, CO 80202 (303) 892-9400 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) JULY 29, 2002 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. [ ] NOTE: Schedules filed in paper format shall include a signed original and five copies of this schedule, including all exhibits. See ss. 240.13d-7 for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). PERSONS WHO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB CONTROL NUMBER. SEC 1746 (03-00) Schedule 13D CUSIP No. 723456 10 9 Pinnacle Entertainment, Inc. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only) R.D. HUBBARD -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) |_| (b) |x| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) N/A -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES 2,322,699 ------------------------------------------------------ BENEFICIALLY 8 SHARED VOTING POWER OWNED BY 0 ------------------------------------------------------ EACH 9 SOLE DISPOSITIVE POWER REPORTING 2,322,699 ------------------------------------------------------ PERSON 10 SHARED DISPOSITIVE POWER WITH 0 -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,322,699 -------------------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.9% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) IN -------------------------------------------------------------------------------- 2 Schedule 13D CUSIP No. 723456 10 9 Pinnacle Entertainment, Inc. -------------------------------------------------------------------------------- This Statement relates to the Schedule 13D, as amended (the "Schedule 13D"), filed by Mr. R.D. Hubbard with regard to beneficial ownership of common stock, par value $.10 per share (the "Common Stock"), of Pinnacle Entertainment, Inc. (the "Company"), and constitutes Amendment No. 23 thereto. Capitalized terms used herein and not otherwise defined have the meaning set forth in Schedule 13D. ITEM 4. PURPOSE OF TRANSACTION. Item 4 is hereby amended by adding the following: In connection with a settlement with the Indiana Gaming Commission (the "IGC"), on July 29, 2002, Mr. Hubbard agreed to place all shares of Common Stock in the Company beneficially owned by him into a voting trust and to sell these shares within a time period to be agreed upon. The terms of the voting trust agreement will provide that the trustee must vote all of these shares in proportion to the votes cast by the other stockholders of the Company. ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER Item 6 is hereby amended by adding the description of the proposed voting trust agreement contained in Item 4 above. 3 Schedule 13D CUSIP No. 723456 10 9 Pinnacle Entertainment, Inc. -------------------------------------------------------------------------------- SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: August 12, 2002 /s/ R.D. HUBBARD ---------------------------------------- R.D. Hubbard 4