他在运动生涯结束后，其先后担任3年荷兰国家队轮滑教练员，5年职业马拉松队教练员。
After his sporting career Johan held positions as the National Inline team coach, and as a professional marathon team coach for 3 and 5 years respectively.
他在运动生涯结束后，其先后担任3年荷兰国家队轮滑教练员，5年职业马拉松队教练员。
After his sporting career Johan held positions as the National Inline team coach, and as a professional marathon team coach for 3 and 5 years respectively.
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