LEARN ABOUT THE PEOPLE AND THE PASSION THAT MAKE 643 CHARTS POSSIBLE.

DEREK WELDON

Chief Executive Officer

derek@643charts.com


Derek serves as CEO and Co-Founder of 643 Charts, where he oversees product design and development and client outreach. Derek has devoted his career to the game of baseball and developed the concepts for 643 Charts during his tenure as an Assistant Baseball Coach at Tennessee Tech University. He 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@643charts.com


Rick serves as CTO and Co-Founder of 643 Charts, where he leads software development, data analytics, sabermetric research, code base optimization, and full-stack web application development. He also contributes heavily to product design and development. Rick holds an M.S. in Aerospace Engineering, a B.S.E. in Aerospace Engineering, and a B.S. in Sustainability (Energy, Materials and Technology) from Arizona State University.

TIM KUHN

Chief Operations Officer

tim@643charts.com


Tim serves as COO and Co-Founder of 643 Charts, where he oversees business operations, financial management, and enterprise strategy while contributing to product design and development and client outreach. Tim holds a B.B.A. in Accounting and an M.S. in Management Information Systems from Texas A&M University.

JACK DeLONGCHAMPS

College Baseball Product Owner

jack@643charts.com


Jack serves as College Baseball Product Owner at 643 Charts, where he leads NCAA and NAIA college baseball sales and client relationships. He works closely with 643 Charts’ leadership, developers, and analysts to shape product strategy, enhance platform features, and drive the evolution of baseball tools. Jack spent six years playing college baseball, first at Charleston Southern University and later at George Mason University, where he also earned his master’s degree. He brings experience across marketing, operations, and broadcasting and remains deeply connected to the baseball community through his work as CEO of Pencil Talk, an on-the-ground reporter for D1Baseball, and a roaming reporter for ESPN.

SI CAFFREY

Softball Product Owner

sarah@643charts.com


Si serves as Softball Product Owner at 643 Charts, where she works closely with leadership, developers, and data analysts to shape how softball coaches, players, and programs leverage data for player development and scouting. She also leads softball sales across the NCAA, NAIA, and professional markets. Si brings 13 years of coaching experience, including five years as a head coach, to 643 Charts. Most recently, she served as head coach of Bucknell University Softball from 2020 to 2025, with previous coaching 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 inducted into the 2025 ASUN Hall of Fame.

LUKE SMAILES

Director, Analytics

luke@643charts.com


Luke serves as Director of Analytics at 643 Charts, where he oversees a wide range of data analytics projects and sabermetric research while contributing heavily to software development and application framework. 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 & Operations Manager

natalie@643charts.com


Natalie serves as Brand and Operations Manager at 643 Charts, where she drives brand strategy, marketing, and client communications while managing data workflows and coordinating cross-department initiatives that connect sales and 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

forrest@643charts.com


Forrest serves as a Data Scientist at 643 Charts, where he focuses on augmenting 643 Charts’ descriptive analytics capabilities through predictive and prescriptive modeling. Forrest brings over 20 years of experience supporting executive-level decision-makers across a variety of sectors, including defense and aerospace, energy, and healthcare. He holds 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 & Data Analyst

donald@643charts.com


Donald serves as a Front-End Developer and Data Analyst at 643 Charts, where he contributes to front-end design and development, enhances internal tools and processes, supports data operations, and creates custom graphic content for social media. Prior to joining 643 Charts, Donald spent three years as the Baseball Student Manager for Northwestern University Baseball, serving as a bullpen catcher and developing Shiny applications to track player performance and trends. He holds a B.S. in Data Science from Northwestern University.

ALEX RIMERMAN

Software Engineer & Product Developer

alex@643charts.com


Alex serves as a Software Engineer and Product Developer at 643 Charts, focusing 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

krainz@643charts.com


Ryan serves as an Account Manager for all JUCO, High School Baseball, and Travel Balls sales at 643 Charts. 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@643charts.com


Megan serves as the Client Onboarding Manager for 643 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.

Join our team!

GOT QUESTIONS, COMMENTS? 
DON’T HESITATE!

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