How much water should I drink during a 5K? A runner's guide to optimal hydration
                                
                                
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                                    4 min read                                
                            
                                Research has shown that even a modest 2% drop in body weight from dehydration can significantly impact athletic performance. Knowing how much water should I drink during a 5K is a critical part of race preparation for maintaining energy levels, avoiding complications, and crossing the finish line strong.