Anyone who has found success as an athlete will tell you that sport teaches lessons that go far beyond the playing field. If you’re looking to succeed in the competitive business environment, there may be no better models than champion athletes. What is it that allows these individuals to achieve greatness? What makes someone a winner? There’s not a single answer. Rather, it’s a combination of things. We’re sharing five of them here. If you follow these lessons, you’ll be poised for a championship in the business world.

Related: 4 Productivity Tips from Extreme Athletes That Will Make Your Business Stronger

Show supreme confidence

Champions have a robust belief in themselves and their ability to succeed. Importantly, this does not mean they expect the journey to be easy. Most things worth having require tremendous effort. Champion athletes devote “blood, sweat and tears” in pursuit of excellence, and they’re willing to make the sacrifice because they know it will pay off. Self-doubters abandon the journey when it gets too hard or when they encounter a few obstacles. Champions persevere because they believe in themselves to the core. This stout self-confidence becomes self-fulfilling. When you fully believe you’ll win if you keep on grinding, you’ll out-grind your less confident competitors. Supreme confidence leads to supreme effort, and supreme effort leads to success.

Like a champion athlete, a winning entrepreneur stays committed when things are tough. Tomorrow’s industry leaders are those who will continue to refine their current pitches and marketing strategies as many times as it takes to reach a breakthrough. They will not be deterred by rejection but rather will learn from it, make adjustments, and come back stronger. This willingness to learn and improve, in fact, is another defining feature of champions.

Always look to improve

Champion athletes, while supremely confident, also possess enough humility to know they always have room to learn and grow. When they take a loss, they review the game film to identify the mistakes they’ve made and see where they need to adjust for the next time. Even when they win, they look at what they could have done better. They also seek input from others. When a coach points out a flaw in their technique, they’re receptive to the feedback and incorporate it into their training. They also look to teammates and even to opponents to learn what others are doing well.

As an entrepreneur, if you lose out on a deal or find a competitor holding a larger share of your targeted market, then look at what they are doing to succeed. Be open to learning and humble enough to seek help from others. Champions are usually their own harshest critics, and their high standards drive them to keep improving. So even when you have some successes, continue looking to level up.

Focus on what you can control

Champions do everything they can to control the variables involved in their sport. Knowing that they can’t fully control the outcome, they go all-in on what they can control, including attitude, effort, and preparation. Entrepreneurs ought to do the same by analyzing their markets, rehearsing presentations multiple times, and scouting both their competition and their potential customers. If you’re meeting with a client, study them ahead of time so you can anticipate the questions they may ask and have impressive answers prepared. Be obsessive about your preparation.

A corollary to this lesson is focusing your post-hoc explanations on what you can – or could have – controlled. After a tough loss, champions do not blame the referee. Instead, they look at what they could have done differently so the referee’s calls would not have mattered. As an entrepreneur, be cautious of attributing bad results to luck or of claiming things weren’t fair. When you do so, you lose motivation to make adjustments for next time. Instead, follow a champion’s lead and know there’s always something you could have done better.

Improvise when needed

Even as champions focus on what they can control, they also recognize that they can’t control everything. Rarely does something go exactly as planned, and the best performers adapt and improvise. Something can always go wrong, and rather than panicking when it does, winners stay confident and make the needed adjustments. Thus, even as you work to control what you can embrace the uncertainty of your sport – or your business, as the case may be.

Related: 5 Lessons Entrepreneurs Can Learn from Pro Sports Teams

Be flexible

You may have noticed that the lessons described above hold some contradictions. Champions have supreme confidence yet also believe they need to get better. They also focus on what they can control while accepting they can’t control everything. Thus, another key to success is adapting your mindset based on the situation at hand. Champions have the mental flexibility to do so seamlessly. Rather than looking for a recipe to follow every time, they embrace the fluidity required to succeed consistently.

This willingness to adapt – to possess an unfixed mindset – is the main premise of the book Extreme Balance: Paradoxical Principles That Make You a Champion, published by Entrepreneur Press. This volume, which I have co-authored with champion athlete and coach Ben Askren and successful business leader Joe De Sena, describes how various champions balance contradictory principles to succeed in their respective sports. It includes chapters such as “Thinking You’re Good Enough and Thinking You’re Never Good Enough,” and “Preparing for Everything and Expecting the Unexpected.” These sections expand upon the lessons described here – and many others – in greater depth. If you want to be a champion entrepreneur, it’s a great resource to help get you there.