It's no longer enough to train hard; you also have to train smart if you want an edge. Enter the Timex Ironman Race Trainer digital heart rate monitor watch, which gives elite athletes the performance tools they need to succeed. The Race Trainer's primary function is to monitor your average heart rate and tell you whether to boost your intensity or take it slower. However, the watch also offers several more sophisticated tools, including a 10-workout memory, a 50-lap chronograph that calculates your average heart rate per lap, and five interval timers with individual heart rate target zones. The tools combine to make serious training seriously easy.