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I have a collection of Excel spreadsheets with historical bet data and I need a Windows-based desktop app, complete with a straightforward GUI, that can back-test the profitability of my sports-betting models. The core task is to ingest those spreadsheets, let me apply custom filters, and instantly return key performance metrics such as yield, ROI, max drawdown ,P/L etc.. The app must handle football, basketball, tennis and other sports data. While testing a strategy I need to be able to narrow results by league, team, specific odds ranges, as well as more nuanced factors like dropping odds or odds movements (%changes),between opening and closing odds for each bookmaker or in average. Whenever I adjust a filter, the results and charts should refresh on the fly so I can see the impact immediately. A clean layout with import-file browsing, filter panels, and an output area for tables and charts is essential. Also ,the user can save the current filter configuration as a Strategy for later use . The collection of Excel spreadsheets consists of Excel spreadsheets from different sources . Their format remains consistent in the future (new data-same format) . For these spreadsheets must create a separate script to import it in the app . For 2 of these files , before were created the scripts , it must make some adjustments-automations to it (see the attached file) . Also , another source of import , will be an Excel file consisted from odds provided from a Pinnacle-API . So , it must modify these data , from JSON mode in an Excel format , using some-pre-defined filters . Additionaly , i want to scraping odds-data from [login to view URL] and add to these the final score/result for each match . Finally , using already existing apps , i would massively scraping odds-data from various leagues/markets from [login to view URL] and [login to view URL] . Under the hood I am flexible on the tech stack—whether you prefer C#/WPF, Python with PyQt or Tkinter, or another Windows-friendly framework—so long as the final executable runs smoothly on current Windows versions without extra setup. Deliverables • Compiled Windows executable and full source code • GUI that imports .xlsx/.csv files, applies the filters above, and outputs yield, ROI, max drawdown (plus total profit, hit rate, stake turnover if easily added) • Real-time filtering with responsive tables and optional basic charts • Short user guide covering installation, file import, and feature use Acceptance Criteria The app must read at least 100 k rows in under 10 seconds on a mid-range PC, produce accurate metrics matching a provided sample calculation, and preserve every filter option listed. If you have previous experience with data-driven sports analytics apps or betting back-testers, let me know—looking forward to seeing what you can build.
ID do Projeto: 40010626
26 propostas
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26 freelancers estão ofertando em média $56 USD/hora for esse trabalho

I am a skilled software developer with a focus on data-driven applications and GUI development for Windows environments. With extensive experience in Python and its GUI frameworks like PyQt, I have built applications that involve complex data processing and real-time analysis. My background in sports analytics and data scraping uniquely qualifies me to create an efficient backtester desktop app for your project. In previous projects, I have successfully designed and implemented desktop applications that integrate data from various sources, including APIs, and allow real-time filtering and dynamic presentation of results. I have experience with data scraping from platforms like OddsPortal and handling large data sets with performance optimization techniques, ensuring seamless execution. My proficiency in scripting makes me adept at transforming and automating data imports, ideal for your Excel and JSON data needs. I am interested in discussing how I can further contribute to your project. Could you specify any particular data formats or additional modules you have in mind? Looking forward to your response.
$50 USD em 40 dias
8,4
8,4

We have successfully completed similar projects and are excited to offer our expertise for your Backtester Desktop App. Our deep understanding of sports betting data and experience in creating data-driven applications ensures we can deliver a robust, user-friendly solution tailored to your needs. Our team, led by Puru Gupta, excels in AI-first product development, automation, and intelligent systems. With over 8 years of experience, we specialize in handling complex data sets, automating workflows, and developing sophisticated desktop applications. Our proficiency in Python, C#, and web scraping aligns perfectly with your project requirements, ensuring seamless integration and high performance. Leveraging our extensive experience in data mining and application development, we will create an efficient Windows-based app that processes extensive historical betting data, applies custom filters, and provides instant performance metrics. Our commitment to uncompromised quality and customer-centric delivery guarantees a product that exceeds expectations. Q: Do you have any specific preferences regarding the tech stack or user interface design? Q: Would you like us to incorporate any additional features apart from those mentioned? Looking forward to collaborating on this impactful project. Let's build something exceptional together. Best regards, Puru Gupta
$60 USD em 40 dias
7,9
7,9

With over a decade of experience in web and mobile development, I understand the need for a Windows-based desktop app that can back-test sports-betting models using historical data. The core task of ingesting Excel spreadsheets, applying custom filters, and providing key performance metrics aligns perfectly with my skills in data analysis and app development. In the realm of sports analytics and betting back-testing, I have successfully delivered tailored solutions that drive results for clients. My expertise in building intuitive GUIs, handling large datasets, and creating real-time filtering options will ensure that your app meets all requirements seamlessly. I am ready to take on the challenge of creating a user-friendly app that can handle multiple sports data sources and provide accurate metrics in a timely manner. Let's work together to bring your vision to life. Please feel free to reach out to me if you have any questions or would like to discuss the project further. I am excited about the opportunity to collaborate with you on this project.
$50 USD em 15 dias
7,5
7,5

With over a decade of experience in C# programming, data processing, and software development, I am confident that I can create the desktop app you need for backtesting your sports betting models. I've tackled similar projects in the past, developing complex algorithms to ingest large Excel files, apply custom filters on the fly, and provide instant performance metrics. My proficiency in languages like C# and Python, coupled with my strong foundation in data processing and extensive knowledge of user interface design ensure that your app will be user-friendly, high-performing and match your precise requirements. Having worked on both mobile and web applications that handle massive data volumes efficiently, I'm confident with handling large datasets, understanding their structures and extracting valuable information from them. This makes me well-equipped to modify and import your Excel spreadsheets and build scripts to automate processes where needed. Alongside these technical skills, one of the strengths I bring to this project is my customer-centric approach. I take great pride in actively involving clients at each stage of the development process to ensure their vision is accurately brought to life. A short-page-turner user guide documenting installation, import utilization will also be provided to facilitate easy usage post-development.
$100 USD em 40 dias
7,6
7,6

Hi I can build you a fast, Windows-native back-testing app using Python + PyQt or C#/WPF, capable of importing and analyzing your sports betting spreadsheets with responsive filtering and performance metrics like ROI, yield, max drawdown, and P/L. The core challenge lies in structuring real-time filtering over 100k+ rows with custom odds movement logic—I'll solve this using efficient dataframes (Pandas) or LINQ-backed queries with multi-threaded UI updates. I'll integrate per-source import scripts, strategy saving, and charting via matplotlib or native controls. JSON odds from Pinnacle will be auto-parsed and normalized, and scraping from OddsSafari, NowGoal, and OddsPortal will be automated where feasible. The UI will be clean: file import, filter panel, live metrics, and export-ready tables. Thanks, Hercules
$80 USD em 40 dias
6,6
6,6

Hello, how are you today? Your project caught my attention and I'd like to work with you. With my strong experience and knowledge in Python, Data Processing, Excel, Web Scraping, C# Programming, User Interface / IA, Software Development, JSON, Data Management, Desktop Application, I am confident that I have the technical expertise required to meet your project requirements. As a seasoned Full Stack Web Developer, I have worked on various web development projects with various tools and stacks like .Net, MERN, Php, PHP CodeIgniter, Node and React, so be rest assured that I have what it takes to complete the project. I look forward to working with you, here is my portfolio for some references: https://www.freelancer.com/u/reedsystems Thank you.
$50 USD em 5 dias
6,2
6,2

My dear prospective client, Let's come to on a same page and start asap I'm Devi Prasad, a seasoned software developer with extensive experience in both C# and Python programming. Throughout my career, I've successfully delivered numerous projects that demanded precise data processing, complex filtering, and sharp data visualization - all skills that align perfectly with the requirements of your backtester desktop app. With my in-depth skillset and versatility across various tech stacks, I am confident that I can create a robust and efficient solution for you. Taking a closer look at your project, I understand the vital need for flexibility and accuracy in filtering data from various sources into the app. My proficiency in tackling multiple data formats like Excel spreadsheets and JSON aligns perfectly with your requirement to consume data from different sources and handle them consistently. Furthermore, the app's performance will be optimized to handle big datasets quickly, with an ability to process at least 100k rows under ten seconds on mid-range PCs-your time isn't wasted! With me, you can expect a detailed documentation summarizing all accessible features of the app to maximize usability. Let's build this backtesting app together, transforming your historical bet data into actionable insights for future betting models. Looking forward to discussing the project further with you soon! Best regards
$50 USD em 40 dias
5,7
5,7

Hi there! I'm a seasoned web scraping expert and data scientist with a proven track record of delivering custom scraping solutions for businesses, startups, and researchers. I specialize in extracting valuable, structured data from sources like e-commerce platforms, directories, news sites, and social media—no matter how complex the site structure. My tech stack includes: Python + BeautifulSoup, Scrapy, Selenium for robust, scalable scraping MongoDB, SQLite, and Pandas for smart data handling and post-processing Experience with headless browsers, CAPTCHA bypassing, and anti-bot strategies Whether you need product pricing data, competitive analysis, lead generation lists, or daily update pipelines, I’ll deliver fast, reliable, and maintainable scripts tailored exactly to your needs. 100% satisfaction | On-time delivery | Clean, ready-to-use data Let’s turn raw web data into business insights. Message me today and let’s build your solution!
$50 USD em 40 dias
4,9
4,9

Hi! I am proficient in MS Excel, Google Sheets, Spreadsheet accounting, and its use in business and analysis. I can accurately enter, arrange, analyze, and present your data. Let's Connect
$50 USD em 40 dias
4,3
4,3

Hello Mate!Greetings Joseph K., Good morning! Already Have Something Live to show you I am professional mobile engineer with skills including Software Development, JSON, User Interface / IA, Desktop Application, C# Programming, Web Scraping, Python, Excel, Data Processing and Data Management. Please send a message to discuss more regarding this project. Looking forward to serve you
$50 USD em 16 dias
0,0
0,0

Proposal — Windows Betting Backtester I will build a fast Windows desktop app that reads your Excel/CSV/Pinnacle JSON betting records, applies flexible filters (league, team, odds movement, date range, etc.), and instantly shows performance metrics like ROI, yield, P/L, hit rate, and drawdown. Delivered Windows executable + full source code Import & preprocessing scripts for all file formats Odds scraping from supported sites Clean GUI with live filters, charts & saved strategies Timeline: 4–5 weeks Goal: 100k+ rows processed in under 10 seconds with accurate metrics If approved, I’ll send a milestone plan and start once sample datasets are shared.
$50 USD em 40 dias
0,0
0,0

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