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【目的】分析1 600 m速度赛中相对马身、相对用时、成绩及负磅之间的关系,并研究伊犁马1 600 m速度赛评分负磅规则。【方法】以8匹3~4岁伊犁马为研究对象,进行1 600 m速度赛测试,每场比赛马匹分别负磅0、0.5、1、1.5、2、2.5、3、3.5、4、4.5和5 kg共11个负磅等级,并对每个负磅等级进行重复试验两次,分析比赛中相对马身、相对用时、成绩及负磅之间的关系。【结果】负磅因素对比赛成绩影响极显著(P<0.01),其余各因素对比赛成绩无显著影响(P>0.05);通过对比不同负磅时马匹成绩、相差马身、相差时间的差异性分析,发现不同负磅时均存在极显著或显著的差异(P<0.01 or P<0.05);通过对负磅、相差马身与相差时间分别进行相关性分析发现,负磅、相差马身与相差时间之间均呈极显著正相关关系(P<0.01);通过建立负磅、相差马身与相差时间之间的回归模型发现,所求各方程均具有极显著意义(P<0.01)。【结论】负磅与相差时间之间线性回归方程为y=1.973 x负磅,相差马身与相差时间之间线性回归方程为y=0.230 x马身;通过回归模型,由前场赛事相差马身、相差时间可以推算出当场负磅值;通过模拟对比平磅赛事和让磅赛事的同场赛成绩的变异系数,让磅比赛变异系数显著低于平磅赛事;通过对比使用头(尾)马和中间马作为参照马效果时,使用中间马作为参照马可以有效地扩大最大评分差。
【Objective】 The purpose of this paper is to analyze the relationship between relative horse body, relative time-use, performance and negative weight in the 1 600 m speed race, and to study the negative pounding scale of Ili Ma 1 600 m speed race. 【Method】 Eighty-four Ili horses aged from 3 to 4 years old were selected as the research object to conduct the 1 600 m speed race test. The horses in each race bear the negative pound 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, And 5 kg total 11 negative pound levels, and each negative pound level to repeat the test twice, analyze the race relative horse body, relative time, grades and negative pounds relationship. 【Results】 The negative pound factor had a significant effect on the result of the competition (P <0.01), and the rest of the factors had no significant effect on the result of the competition (P> 0.05). By comparing the results of horses with different negative pound, Sex analysis, found significant negative or significant differences were significant (P <0.01 or P <0.05); by negative pounds, the difference between the horse body and the time difference between the correlation analysis found that the negative pounds, the difference between the horse (P <0.01). By establishing a regression model between the negative pound, the difference between the horsetail and the difference of time, all the equations were found to have extremely significant significance (P <0.01) . 【Conclusion】 The linear regression equation between the negative pound and the difference time is y = 1.973 x negative pound, the linear regression equation between the phase difference between maremas and the time difference is y = 0.230 x ma; by regression model, Body, the difference between the time can be calculated on the spot negative pound value; By comparing the flat-scale events and let the pounding events of the same race results coefficient of variation, so that the pound coefficient of variation significantly lower than the pound game; By comparing the use of head (tail) When the horse and the middle horse serve as the reference horse effect, using the middle horse as the reference horse can effectively expand the maximum score difference.