LEARN ABOUT THE PEOPLE AND THE PASSION THAT MAKE 6–4–3 CHARTS POSSIBLE.
DEREK WELDON
Chief Executive Officer
Derek is the CEO and Co-Founder of 6–4–3 Charts. Derek oversees product design and development and client outreach. Derek has devoted his life to the game of baseball and devised the concepts for 6–4–3 Charts during his tenure as an Assistant Baseball Coach at Tennessee Tech University. Derek holds a B.S. in Education from Southern Arkansas University and a M.Ed. in Curriculum and Instruction with a Technology Emphasis from City University of Seattle.
RICK AHLF
Chief Technology Officer
Rick is the CTO and Co-Founder of 6–4–3 Charts. Rick leads and oversees all software development efforts, data analytics, sabermetric research, code base optimization, and manages the full-stack web application framework. Rick also contributes heavily to the overall product design and development. Rick holds a M.S. in Aerospace Engineering, B.S.E. in Aerospace Engineering and B.S. in Sustainability (Energy, Materials and Technology) from Arizona State University.
TIM KUHN
Chief Operations Officer
Tim is the COO and Co-Founder of 6–4–3 Charts. Tim oversees the execution of all business operations, financial management and enterprise strategy. Tim is also highly involved in product design and development and client outreach. Tim holds a B.B.A. in Accounting and a M.S. in Management Information Systems, both from Texas A&M University.
JACK DeLONGCHAMPS
College Baseball Product Owner
Jack is responsible for all College Baseball NCAA and NAIA Baseball sales and client interfacing. He will work alongside 6-4-3 Charts’ leadership, developers, and analysts to shape product strategy, enhance platform features, and drive the evolution of baseball tools. He spent six years playing college baseball—first at Charleston Southern University, then at George Mason University, where he also earned his master’s degree. Jack is deeply embedded in the baseball world, having served in roles in marketing, operations, and broadcasting. Jack also serves as CEO of Pencil Talk and an on-the-ground reporter for D1Baseball.
SI CAFFREY
Softball Product Owner
As Softball Product Owner, Si works closely with 6-4-3 leadership, developers, and data analysts to lead the charge in how softball coaches, players and programs leverage data to drive player development and scouting initiatives. She leads all Softball sales for NCAA, NAIA and Professional markets. Si comes to 6-4-3 after compiling an impressive track record of success in the sport of softball with 13 years of coaching experience, including 5 years as a head coach. She was most recently the head coach of the Bucknell University Softball team (2020-2025), and has had stops at Penn State, Utah State and Texas Tech. Si began her collegiate playing career at Jacksonville University, where she helped lead the program to an ASUN Championship and earned a degree in Exercise Science. She was recently inducted into the 2025 Class ASUN Hall of Fame.
LUKE SMAILES
Director, Analytics
Luke serves as Director, Analytics for 6-4-3, while also contributing heavily to software development and application framework. He oversees a wide range of data analytics projects and sabermetric research. Luke holds a B.A. in Economics from Coe College where he played four seasons as an outfielder. Off the field, Luke also co-founded Kohawk Baseball Analytics, Coe’s analytics program.
NATALIE HANSEN
Brand and Operations Manager
Natalie serves as Brand and Operations Manager at 6-4-3 Charts. She drives brand strategy, marketing, and client communications while managing data workflows and cross-department initiatives that connect sales with product development. Natalie earned her B.A. in Economics from Coe College, where she also studied Data Science and Spanish, and played collegiate softball.
FORREST ALLEN
Data Scientist
As a data scientist, Forrest focuses on augmenting 6-4-3’s world-class descriptive analytics capabilities with predictive and prescriptive modeling. Forrest brings over 20 years of experience supporting a variety of executive-level decision-makers across a wide variety of sectors including defense and aerospace, energy, and healthcare. He holds both an M.S. in Business Analytics from the Stern School of Business at New York University and a B.A. in Political Science from the Sewanee: University of the South, where he played baseball.
DONALD STRICKLIN
Front-End Developer / Analyst
Click here to fill out the APT Interest Form
Donald comes to 6-4-3 after three years as the Baseball Student Manager for the Northwestern University Baseball Team, where he served as the bullpen catcher and created Shiny applications for tracking player performance and trends. At 6-4-3, Donald contributes to front-end application design and development, enhancing internal tools and processes, and expediting production of impactful data visualizations for clients across several markets. Donald holds a B.S. in Data Science from Northwestern University.
ALEX RIMERMAN
Software Engineer & Product Developer
Alex serves as a software engineer and product developer at 6-4-3 Charts, focusing primarily on the design and development of their mobile application product suite. He oversees product design from concept to implementation, covering both front-end and back-end infrastructure, engaging directly with clients, sales staff and technical leadership. Alex earned a double major in Computer Science and Applied Mathematics from Swarthmore College, where he also played four years as a pitcher on the collegiate baseball team.
RYAN KRAINZ
JUCO/High School/Travel Ball Account Manager
Click here to fill out the APT Interest Form
Ryan is responsible for all JUCO and High School Baseball sales and client interfacing. After a successful baseball career at Cornell University, including two First-Team All-Ivy League selections in 2017 and 2018, he is also well-versed in the realm of baseball analytics, serving as an analytics consultant to numerous Division 1 Baseball programs over the years. Ryan holds a B.S. in Industrial & Labor Relations with a minor in Business from Cornell University.
MEGAN AHLF
Client Onboarding Manager
Megan serves as the Executive Assistant for 6–4–3 Charts and oversees CRM processes and procedures, executive scheduling, invoicing and assists the Executive team with day-to-day business organization and operations. Megan holds a B.S. in Nutrition and Dietetics from Arizona State University.
Like most innovations,
6–4–3 Charts was born of necessity.
Derek Weldon was an assistant baseball coach for Tennessee Tech University when the team secured a spot in the 2017 NCAA Regional Tournament. On the overnight bus to Tallahassee, Derek scrambled to complete scouting charts for three opponents in two days. Lacking confidence in existing spray chart services and choosing not to subscribe to a service for the 2017 season, Derek was spending up to eight hours tediously sorting through all of the available information, organizing data, and manually creating charts himself. Working laboriously with his laptop on the bus, Derek had an idea: with all of the information available, a scouting service has the opportunity to efficiently put together fully comprehensive and objective spray charts. It could also serve to compile short-game stats and other advanced analytics. What if there was a service that took this information and
organized it into a highly detailed and intuitive product? He grabbed his phone and, as the bus sped through the night toward Florida, made a phone call that set 6–4–3 Charts in motion.
Rick Ahlf is a former baseball player and high school valedictorian whom Derek coached at Timberline High School in Washington State. He had recently graduated at the top of his class in the graduate aerospace engineering program from Arizona State University, and Derek remembered he had experience in software development. From the bus, Derek presented his former player with a hypothetical: if you had a given set of baseball data, could you create user-friendly charts to bring the numbers to life? Rick insisted that he could. Post-tournament, Derek followed up with Rick to begin designs on a prototype chart. With Rick on board, Derek realized that this idea could change the game of sabermetrics at the college level. It was time to seek business and financial guidance. Once again, he called an old friend.
Tim Kuhn, a childhood friend and former teammate of Derek’s, is a CPA and highly successful business professional. The two have stayed in touch over the years, largely because of their mutual love of baseball. Derek shared his plan with Tim and asked for advice on how to move forward. Intrigued by his old friend’s idea, Tim spent that evening researching the current market and knew that he wanted to be involved: he called Derek back the next day and became the third partner. Two months later, 6–4–3 Charts produced its first deliverable product.
Experts in their respective fields of coaching, software development, and business, co-founders Derek, Rick, and Tim have built a superior product to revolutionize the way coaches prepare to defeat each opponent with increased efficiency and confidence. 6–4–3 Charts’ mission is to provide clients a competitive advantage through the most accurate and applicable scouting reports and advanced analytics.
Like most innovations,
6–4–3 Charts was born of necessity.
Derek Weldon was an assistant baseball coach for Tennessee Tech University when the team secured a spot in the 2017 NCAA Regional Tournament. On the overnight bus to Tallahassee, Derek scrambled to complete scouting charts for three opponents in two days. Lacking confidence in existing spray chart services and choosing not to subscribe to a service for the 2017 season, Derek was spending up to eight hours tediously sorting through all of the available information, organizing data, and manually creating charts himself. Working laboriously with his laptop on the bus, Derek had an idea: with all of the information available, a scouting service has the opportunity to efficiently put together fully comprehensive and objective spray charts. It could also serve to compile short-game stats and other advanced analytics. What if there was a service that took this information and organized it into a highly detailed and intuitive product? He grabbed his phone and, as the bus sped through the night toward Florida, made a phone call that set 6–4–3 Charts in motion.
Rick Ahlf is a former baseball player and high school valedictorian whom Derek coached at Timberline High School in Washington State. He had recently graduated at the top of his class in the graduate aerospace engineering program from Arizona State University, and Derek remembered he had experience in software development. From the bus, Derek presented his former player with a hypothetical: if you had a publicly available set of data, could you create user-friendly charts to bring the numbers to life? Rick insisted that he could. Post-tournament, Derek followed up with Rick to begin designs on a prototype chart. With Rick on board, Derek realized that this idea could change the game of sabermetrics at the college level. It was time to seek business and financial guidance. Once again, he called an old friend.
Tim Kuhn, a childhood friend and former teammate of Derek’s, is a CPA and highly successful business professional. The two have stayed in touch over the years, largely because of their mutual love of baseball. Derek shared his plan with Tim and asked for advice on how to move forward. Intrigued by his old friend’s idea, Tim spent that evening researching the current market and knew that he wanted to be involved: he called Derek back the next day and became the third partner. Two months later, 6–4–3 Charts produced its first deliverable product.
Experts in their respective fields of coaching, software development, and business, co-founders Derek, Rick, and Tim have built a superior product to revolutionize the way coaches prepare to defeat each opponent with increased efficiency and confidence. 6–4–3 Charts’ mission is to provide clients a competitive advantage through the most accurate and applicable scouting reports and advanced analytics.
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GOT QUESTIONS, COMMENTS?
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6–4–3 Charts is committed to giving you the best scouting experience possible. We love getting feedback on our products, and are always happy to answer questions.
College Baseball (D1-NAIA)
Jack DeLongchamps, BSB Product Owner
jack@643charts.com
All Softball (D1-NAIA)
Sarah Caffrey, SB Product Owner
sarah@643charts.com
JUCO & HS Baseball
Ryan Krainz, Account Manager
krainz@643charts.com
Analytics Questions?
Luke Smailes, Director, Analytics
luke@643charts.com
Technical Questions?
Rick Ahlf, CTO
rick@643charts.com
All Other Inquiries
Derek Weldon, CEO
derek@643charts.com