Steve Asmussen, the all-time winningest trainer in North America, became the first trainer to surpass one million in earnings for 2025, taking the lead among all North American trainers as January nears its end. Asmussen posted an incredible 14 wins last week and 29 in-the-money finishes from 60 starts with $653,327 in earnings, bringing his total to $1,050,372.