1.02 Essence of Baseball

Terms of Service

These Terms of Service (hereinafter referred to as the "Terms") set forth the conditions of use for the services (hereinafter referred to as the "Services") provided on this website by DELTA Inc. (hereinafter referred to as the "Company"). All persons who use the Services (hereinafter referred to as "Users") shall be deemed to have agreed to these Terms at the time they use the Services. The Japanese version of this Agreement shall be the authoritative text. In the event of any discrepancy between the Japanese version and any translation, the Japanese version shall prevail.

Article 1 (Application)

These Terms shall apply to all relationships between Users and the Company concerning the use of the Services.

Article 2 (Paid Registration)

Paid registration shall be completed when an applicant wishing to make a paid registration applies for paid registration by the method prescribed by the Company and the Company approves it.

If the Company determines that an applicant for paid registration falls under any of the following, the Company may refuse to approve the registration application or revoke its approval, and shall bear no obligation whatsoever to disclose the reasons therefor.

• Where false information was submitted at the time of the registration application
• Where the application is from a person who has previously violated these Terms
• Any other case where the Company determines the registration to be inappropriate

Article 3 (Management of User ID and Password)

Users shall manage their User ID and password for the Services at their own responsibility.

Users may not, under any circumstances, transfer or lend their User ID and password to any third party. If login is performed with a combination of User ID and password that matches the registered information, the Company shall deem such use to be by the User who registered that User ID.

Article 4 (Usage Fees and Payment Method)

As consideration for using the Services, Users shall pay the usage fees separately determined by the Company and displayed on this website, by the method designated by the Company.

Article 5 (Cancellation Processing and Billing)

Cancellation can be carried out from the user information editing page. The user information editing page can be opened from the username and icon displayed at the top right of the page after logging in. If you are registered for billing via PayPal, please check how to cancel your billing registration on the user information editing page.

Registered credit cards have their own closing dates and withdrawal dates, and the actual withdrawal processing is carried out in accordance with those terms. Accordingly, even if you cancel your membership, if the date on which you complete the cancellation process is past the closing date for that month, a charge for the following month will be incurred.

In addition, if you register as a paid member on this site, the paid membership fee will be incurred regardless of the number of days used. Even if you carry out the withdrawal process immediately after registering, one month's worth of usage fees will be charged.

As closing dates and withdrawal dates depend on the contract between you and your credit card company, please confirm when the charge you have currently received was incurred, and if you have any questions, please contact your credit card company.

• About billing dates and amounts associated with membership class changes

Article 6 (Prohibited Matters)

1. Regardless of whether the use is paid or free, the following acts are prohibited when Users use the Services.

• Acts that violate laws or public order and morals
• Acts related to criminal conduct
• Acts that destroy or interfere with the functions of the Company's servers or network
• Acts that may interfere with the operation of the Company's services
• Acts of collecting or accumulating personal information, etc. concerning other Users
• Acts of impersonating other Users
• Acts of directly or indirectly providing benefits to antisocial forces in connection with the Company's services

2. Without the Company's permission, Users are prohibited from carrying out the acts falling under each of the following items with respect to the information, data, text, images, and other content posted on the Services.

• Using it for commercial purposes
• Providing, disclosing, distributing, or publishing it to third parties
• Acquiring it mechanically or automatically using scraping, programs, generative AI, OCR, or other tools
• Reproducing, acquiring, accumulating, transferring, or building into a database, in large quantities or systematically, whether by machine or by manual work
• Creating a service, materials, or a body of data that substitutes for the Services or the database provided by the Services
• Inputting the content of the Services into generative AI or other external services in large quantities or on a continuous basis
• Any other use that the Company reasonably determines to exceed the normal scope of use of the Services

However, the uses set forth in the following items shall not be subject to this restriction.

• The User themselves temporarily reproducing the minimum necessary data, or inputting it into generative AI or other tools, for the purpose of personal viewing or analysis
• Using data or analysis results in papers, academic presentations, or other research outputs for the purpose of academic research, in accordance with the conditions set forth in this Article

• About use for academic research

• Uses expressly permitted separately by the Company

Article 7 (Suspension, etc. of Provision of the Services)

If the Company determines that any of the following applies, the Company may suspend or interrupt the provision of all or part of the Services without prior notice to Users.

• When performing maintenance, inspection, or updates of the computer systems relating to the Services
• When the provision of the Services becomes difficult due to force majeure such as earthquake, lightning, fire, power outage, or natural disaster
• When computers or communication lines, etc. are halted due to an accident
• Any other case where the Company determines that provision of the Services is difficult

Article 8 (Usage Restrictions and Deletion of Registration)

In the following cases, the Company may, without prior notice, restrict the User's use of all or part of the Services, or delete the User's registration as a User.

• Where the User has violated any provision of these Terms
• Where it is found that there is a false fact in the registered information
• Any other case where the Company determines that use of the Services is inappropriate

The Company shall bear no liability whatsoever for any damage incurred by Users as a result of any action taken by the Company pursuant to this Article.

Article 9 (Disclaimer)

The Company's liability for default shall be exempted in cases not attributable to the Company's willful misconduct or gross negligence.

Even in cases where the Company bears liability for any reason, the Company shall bear liability for compensation only within the scope of ordinarily foreseeable damages and, for paid services, within the scope of the amount charged (in the case of continuous services, an amount equivalent to one month).

The Company shall bear no liability whatsoever for any transactions, communications, disputes, etc. arising between a User and other Users or third parties in relation to the Services.

Article 10 (Changes to Service Content, etc.)

The Company may change the content of the Services or discontinue the provision of the Services without notifying Users, and shall bear no liability whatsoever for any damage incurred by Users as a result thereof.

Article 11 (Changes to the Terms of Service)

If the Company deems it necessary, the Company may change these Terms at any time without notifying Users.

Article 12 (Notices or Communications)

Notices or communications between Users and the Company shall be made by the method prescribed by the Company.

Article 13 (Prohibition of Assignment of Rights and Obligations)

Users may not, without the Company's prior written consent, assign to any third party, or provide as security, their status under the usage agreement or their rights or obligations based on these Terms.

Article 14 (Governing Law and Jurisdiction)

Japanese law shall be the governing law for the interpretation of these Terms.

In the event a dispute arises in relation to the Services, the court having jurisdiction over the location of the Company's head office shall be the exclusive agreed-upon jurisdiction.

About the Notation Based on the Act on Specified Commercial Transactions

The various data relating to professional baseball games within the Services are data that DELTA Inc. has purchased from Japan Baseball Data Co., Ltd. — which is licensed by the 12 teams and the Nippon Professional Baseball Organization (a general incorporated association) — and has analyzed and processed.

Revision History

2026.8.31	Added a provision that the Japanese version shall be the authoritative text and prevail over any translation.
2026.8.31	Added conditions for use in academic research and a provision on input into generative AI to Article 6 (Prohibited Matters).