JOHN HANCOCK FUNDS III John Hancock Rainier Growth Fund AMENDMENT TO SUB- ADVISORY AGREEMENT

Exhibit (d)(15)

XXXX XXXXXXX FUNDS III

Xxxx Xxxxxxx Xxxxxxx Growth Fund

AMENDMENT TO SUB-ADVISORY AGREEMENT

AMENDMENT made as of this 5th of June 2012 to the Sub-Advisory Agreement dated December 20, 2008 (the “Agreement”), between Xxxx Xxxxxxx Investment Management Services, LLC, a Delaware limited liability company (the “Adviser”), and Rainier Investment Management Inc., a Washington corporation (the “Subadviser”). In consideration of the mutual covenants contained herein, the parties agree as follows:

1. CHANGE IN APPENDIX A

     Appendix A of the Agreement, which relates to Section 3 of the Agreement, “Compensation of Subadviser,” is hereby amended and restated as shown in Appendix A hereto.

2. EFFECTIVE DATE

This Amendment shall become effective as June 1, 2012.

3. DEFINED TERMS

Unless otherwise defined herein, capitalized terms used herein have the meanings specified in or pursuant to the Agreement.

4. OTHER TERMS OF THE AGREEMENT

Except as specifically amended hereby, all of the terms and conditions of the Agreement shall continue to be in full force and effect and shall be binding upon the parties in accordance with their respective terms.

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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed under seal by their duly authorized officers as of the date first mentioned above.

		XXXX XXXXXXX INVESTMENT MANAGEMENT SERVICES, LLC
		By:		/s/ Xxxxx X. Xxxxxxxxx
				Xxxxx X. Xxxxxxxxx
				President and Chief Executive Officer
		RAINIER INVESTMENT MANAGEMENT, INC.
		By:		/s/ Xxxxx X. Xxxxxxxx
				Name: Xxxxx X. Xxxxxxxx
				Title: President

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APPENDIX A

The Subadviser shall serve as investment subadviser for each Portfolio of the Trust listed below. The Adviser will pay the Subadviser, as full compensation for all services provided under this Agreement with respect to each Portfolio, the fee computed separately for such Portfolio at an annual rate as follows (the “Subadviser Fee”):

Between $3 billion and

Excess Over $6

First $3 billion of

$6 billion of Aggregate

billion of Aggregate

Portfolio

Aggregate Net Assets*

Net Assets*

Net Assets*

Xxxx Xxxxxxx Xxxxxxx Growth Fund

* The term Aggregate Net Assets includes the net assets of a Portfolio of the Trust. It also includes with respect to each Portfolio the net assets of one or more other portfolios as indicated below, but in each case only for the period during which the Subadviser for the Portfolio also serves as the subadviser for the other portfolio(s). For purposes of determining Aggregate Net Assets and calculating the Subadviser Fee, the net assets of the Portfolio and each other portfolio of the Trust are determined as of the close of business on the previous business day of the Trust, and the net assets of each portfolio of each other fund are determined as of the close of business on the previous business day of that fund.

Trust Portfolio(s)				Other Portfolio(s)
Xxxx Xxxxxxx Xxxxxxx Growth Trust		—		Growth Equity Trust, a series of Xxxx Xxxxxxx Variable Insurance Trust

The Subadviser Fee for a Portfolio shall be based on the applicable annual fee rate for the Portfolio which for each day shall be equal to (i) the sum of the amounts determined by applying the annual percentage rates in the table to the applicable portions of Aggregate Net Assets divided by (ii) Aggregate Net Assets (the “Applicable Annual Fee Rate”). The Subadviser Fee for each Portfolio shall be accrued for each calendar day, and the sum of the daily fee accruals shall be paid monthly to the Subadviser within 30 calendar days of the end of each month. The daily fee accruals will be computed by multiplying the fraction of one over the number of calendar days in the year by the Applicable Annual Fee Rate, and multiplying this product by the net assets of the Portfolio. The Adviser shall provide Subadviser with such information as Subadviser may reasonably request supporting the calculation of the fees paid to it hereunder. Fees shall be paid either by wire transfer or check, as directed by Subadviser.

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