MEMORANDUM
This is an action for breach of contract brought by Evgeny Okmyansky (“Ok-myansky”), a Massachusetts resident and distributor of health and diet food supplement products. Defendant Herbalife International of America, Inc. (“Herbalife”) is a multi-level, health food marketing company. Herbalife is a Nevada corporation with its principal place of business in California. Okmyansky seeks to recover over $500,000 in commissions and other compensation allegedly due under his distributorship agreement. Presently before this court are Okmyansky’s and Herbal-ife’s cross-motions for summary judgment.
Background
Herbalife develops and markets weight management products, dietary supplements, and nutritional foods.1 Herbalife sells its products through an international network of independent distributors.2 These independent distributors generate profit in three ways. First, distributors purchase Herbalife products at substantial discounts and sell to the public at higher prices.3 Second, distributors recruit other individuals to become Herbalife distributors.4 Herbalife pays a “commission” to the recruiting distributor (“sponsor”) when these recruits (“down-line distributors”) purchase Herbalife products directly from *59the company.5 Third, a sponsor can earn “royalties” based on the volume of sales attributed to all of his down-line distributors and all of the sales attributed to recruits of his down-line distributors (or a sponsor’s “lineage”).6
In July of 1992, Okmyansky entered into a distributorship agreement with Her-balife.7 In 1994, Okmyansky realized that several of the down-line distributors in his recruitment lineage had been “enticed to sign separate and independent distributorship agreements by other sponsors.”8 Under Herbalife’s Rules of Conduct and Distributor Policies (“Rules of Conduct”), a distributor can be attributed to only one sponsor.9 The first sponsor to recruit a distributor is “considered the valid Distributorship.” 10 Within this marketing structure, however, recruitment lineages frequently become entangled.11 Herbalife refers to this double-sponsorship as a prohibited “dual-distributorship.”12 With respect to these dual-distributorship disputes, Rule 4-C of the Rules of Conduct specifically provides that “Herbalife has sole and absolute discretion to determine the disposition of both Distributorships.”13
Okmyansky informed Herbalife that several of his down-line distributors were operating under prohibited dual-distributorships and requested monetary compensation for the payments (royalties and commissions) that had been improperly dispersed to other sponsors.14 Between 1995 and 1999, Herbalife conducted an investigation and determined that the down-line distributors belonged in Okmyansky’s lineage.15 Herbalife remedied the dual-distributorships by returning the distributors to Okmyansky’s lineage.16 Herbalife, though, refused to pay Okmyansky the commissions and royalties that Herbalife had formerly dispersed to other sponsors.17 Okmyansky contends that, under the distributorship agreement, Herbalife must pay him the commissions and royalties attributable to the activities of the down-line distributors throughout the period of the improper dual-distributorships.18 Herbalife disagrees and argues that under the plain language of the Rules of Conduct, the company has broad discretion to remedy dual-distributorships.19
In February of 2003, Okmyansky brought suit in the Middlesex Superior *60Court of the Commonwealth of Massachusetts.20 On March 28, 2003, Herbalife removed this action pursuant to 28 U.S.C. § 1441.21 This court has subject matter jurisdiction under 28 U.S.C. § 1332.
Discussion
As required by this court, Okmyansky and Herbalife filed cross-motions for summary judgment on the contractual issue of whether Herbalife had authority to refuse to pay Okmyansky the commissions and royalties.22 A motion for summary judgment is meant “to pierce the boilerplate of the pleadings and assay the parties’ proof in order to determine whether trial is actually required.”23 Under Federal Rule of Civil Procedure 56, summary judgment is appropriate only if the record reveals that there is “no genuine issue as to any material fact and ... the moving party [has demonstrated an] entitle[ment] to a judgment as a matter of law.”24
It is the responsibility of the “party seeking summary judgment [to] make a preliminary showing that no genuine issue of material fact exists. Once the movant has made this showing, the nonmovant must contradict the showing by pointing to specific facts demonstrating that there is, indeed, a trialworthy issue.”25
In deciding whether to allow a motion for summary judgment, a court “ ‘must view the entire record in the light most hospitable to the party opposing summary judgment, indulging all reasonable inferences in that party’s favor.’ ”26 But, a court “need not credit ‘conclusory allegations, improbable inferences, and unsupported speculation.’ ”27
Of course, “[t]he happenstance that all parties seek summary judgment neither alters the yardstick nor empowers the trial court to resolve authentic disputes anent material facts.”28 A court considering cross-motions for summary judgment “must evaluate each motion separately, being careful to draw inferences against each movant in turn.”29
A. Law Governing the Contract
Okmyansky asserts that Massachusetts law governs this dispute, and Herbalife argues for California law. Under both California and Massachusetts law, absent ambiguity, the plain meaning of the con-*61traetual language controls.30 Neither party asserts that California or Massachusetts courts would read the contract in a special or unique way. Because nothing turns on a difference between the contract laws of Massachusetts and California, this court need not decide which body of law governs the dispute.31
B. Terms of the Contract
Both parties agree that the contract comprises more than the standard Distributorship Agreement form signed by Ok-myansky in 1992.32 The written contract between the parties includes the Herbalife Career Book, which contains the terms of Okmyansky’s compensation and the Rules of Conduct.33 Okmyansky received the Career Book at the time he executed the Distributorship Agreement in 1992.34 Although the Career Book has gone through many editions since that time,35 neither party claims that any particular edition would resolve the present dispute differently than any other edition.36 There is no dispute, therefore, over which documents constitute the written terms of the contract. The parties simply disagree about whether the contract allows Herbalife to remedy a dual-distributorship without awarding retroactive compensation to the valid sponsor.
C. Herbalife’s Discretion to Remedy Dualr-Distributorships
Rule 4 of the Rules of Conduct specifically addresses the problem of dual-distributorships. Rule 4-A provides that a down-line distributor may have only one sponsor.37 Rule 4-C specifies that the first sponsor to successfully recruit a down-line distributor has priority over any subsequent sponsors.38 When subsequent sponsors enlist previously recruited distributors, Rule 4-C gives Herbalife “sole and absolute discretion to determine the disposition of both Distributorships, as well as any penalties or sanctions it deems necessary and appropriate for the Distributorship and the Sponsoring organization(s).”39
Okmyansky argues that once Herbalife has exercised its discretion and returned down-line distributors to the original spon*62sor, Herbalife must compensate the rightful sponsor for royalties and commissions wrongfully paid to other sponsors throughout the period of the dual-distributorships.40 This court disagrees.
A “disposition” is a final arrangement, a settlement, or a resolution.41 Like the ordinary resolution of a civil case, the disposition of “both” distributorships naturally includes a final arrangement of the recruitment lineages as well as any monetary compensation. Under Rule 4-C, Herbalife had the discretion to leave the down-line distributors in the second sponsor’s lineage, prospectively denying Okmyansky royalties and commissions attributable to future sales activities.42 Here Herbalife chose instead to return the down-line distributors to Okmyansky’s lineage. This decision, though, does not obligate Herbal-ife to pay retroactive compensation to the original sponsor.
This interpretation of Rule 4-C is confirmed by other provisions in the Rules of Conduct. The introduction to the Rules of Conduct provides,
In its sole and absolute discretion, Her-balife may impose any remedy or sanction it determines best addresses any breach of the Rules of Conduct & Distributor Policies. Herbalife also reserves the right in its absolute discretion to waive wholly or partially or to pardon or forgive wholly or partially any breach of any of the rules contained in this section.43
Furthermore, Rule 8-L reiterates that whenever there is a violation of the Rules of Conduct, “Herbalife may in its sole discretion take whatever actions or measures it deems necessary and appropriate.”44
Understood in this context, a Rule 4-C “disposition” of the distributorships includes any remedies, actions, or measures with respect to “both Distributorships.”45 Given the breadth of this language, this court finds that a refusal to pay retroactive damages to an injured sponsor is within Herbalife’s discretion under the contract. Absent bad faith, this court must defer to Herbalife’s disposition.46
Conclusion
For the foregoing reasons, Herbalife’s motion for summary judgment is ALLOWED and Okmyansky’s motion for summary judgment is DENIED.
AN ORDER WILL ISSUE.