Par Investment Partners SC 13D/A Champions Oncology, Inc.

Exhibit 99.1

Joint Filing Agreement

In accordance with Rule 13d-1(k) under the Securities and Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Shares of the Issuer and further agree that this Joint Filing Agreement be included as an exhibit to this Schedule 13D. Each party to this Joint Filing Agreement expressly authorizes each other party to file on its behalf any and all amendments to such statement on Schedule 13D.

In evidence whereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement as of March 23, 2015.

PAR INVESTMENT PARTNERS, L.P.
By: PAR Group, L.P., its general partner
By: PAR Capital Management, Inc., its general partner
By:	/s/ Arthur G. Epker, III
	Arthur G. Epker, III
	Vice President of PAR Capital Management, Inc.
PAR GROUP, L.P.
By: PAR Capital Management, Inc., its general partner
By:	/s/ Arthur G. Epker, III
	Arthur G. Epker, III
	Vice President of PAR Capital Management, Inc.
PAR CAPITAL MANAGEMENT, INC.
By:	/s/ Arthur G. Epker, III
	Arthur G. Epker, III
	Vice President of PAR Capital Management, Inc.
/s/ Arthur G. Epker, III
Arthur G. Epker, III