If two joggers have similar levels of a commitment and purpose, but one is clearly better at jogging than the other, what is most likely the difference between the two joggers

The most likely difference between the two joggers is their natural ability or talent for jogging. While both joggers may have a similar commitment and purpose, the one who is better at jogging likely possesses certain physical attributes, such as better cardiovascular endurance, muscular strength, or efficient running form. They might also have had more experience, training, or access to resources that enhance their jogging ability.