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Trainer Comparison

Statistics by Year:
Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 4 13 3.25 0 1 1 0% 15.38% $58,832 $4,526 $14,708 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 11 40 3.64 4 3 1 10% 20% $254,257 $6,356 $23,114 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 4 9 2.25 0 1 2 0% 33.33% $11,190 $1,243 $2,798 0 0
Jason G. Cook 9 29 3.22 8 3 4 27.59% 51.72% $613,400 $21,152 $68,156 1 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 9 26 2.89 3 3 6 11.54% 46.15% $404,801 $15,569 $44,978 1 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 2 8 4 0 1 2 0% 37.5% $6,605 $826 $3,303 0 0
Jason G. Cook 14 42 3 7 4 9 16.67% 47.62% $461,620 $10,991 $32,973 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 9 30 3.33 2 5 6 6.67% 43.33% $106,171 $3,539 $11,797 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 7 19 2.71 1 2 3 5.26% 31.58% $54,140 $2,849 $7,734 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 7 21 3 2 2 1 9.52% 23.81% $56,787 $2,704 $8,112 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 1 2 2 0 0 0 0% 0% $705 $353 $705 0 0
Jason G. Cook 8 24 3 1 3 2 4.17% 25% $17,446 $727 $2,181 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 1 1 1 0 0 0 0% 0% $75 $75 $75 0 0
Jason G. Cook 7 30 4.29 8 5 2 26.67% 50% $108,941 $3,631 $15,563 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 1 1 1 0 0 0 0% 0% $105 $105 $105 0 0
Jason G. Cook 4 15 3.75 2 2 3 13.33% 46.67% $87,399 $5,827 $21,850 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 3 8 2.67 0 0 1 0% 12.5% $2,223 $278 $741 0 0
Jason G. Cook 11 25 2.27 1 1 2 4% 16% $16,133 $645 $1,467 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 5 20 4 0 0 1 0% 5% $4,875 $244 $975 0 0
Jason G. Cook 9 22 2.44 2 5 3 9.09% 45.45% $57,766 $2,626 $6,418 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jason G. Cook 6 16 2.67 3 1 2 18.75% 37.5% $27,126 $1,695 $4,521 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 6 15 2.5 1 0 2 6.67% 20% $5,278 $352 $880 0 0
Jason G. Cook 9 38 4.22 6 8 8 15.79% 57.89% $62,267 $1,639 $6,919 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 4 18 4.5 4 0 4 22.22% 44.44% $12,494 $694 $3,124 0 0
Jason G. Cook 9 33 3.67 5 5 3 15.15% 39.39% $56,464 $1,711 $6,274 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 3 15 5 2 1 1 13.33% 26.67% $16,118 $1,075 $5,373 0 0
Jason G. Cook 15 54 3.6 9 4 7 16.67% 37.04% $155,469 $2,879 $10,365 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 4 23 5.75 2 2 3 8.7% 30.43% $20,220 $879 $5,055 0 0
Jason G. Cook 24 83 3.46 10 17 14 12.05% 49.4% $155,379 $1,872 $6,474 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 7 41 5.86 5 6 5 12.2% 39.02% $43,924 $1,071 $6,275 0 0
Jason G. Cook 16 56 3.5 15 5 4 26.79% 42.86% $205,113 $3,663 $12,820 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 9 39 4.33 5 4 2 12.82% 28.21% $38,867 $997 $4,319 0 0
Jason G. Cook 19 51 2.68 6 6 5 11.76% 33.33% $83,463 $1,637 $4,393 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 11 75 6.82 8 4 11 10.67% 30.67% $63,351 $845 $5,759 0 0
Jason G. Cook 17 75 4.41 6 7 12 8% 33.33% $109,339 $1,458 $6,432 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 11 82 7.45 9 8 13 10.98% 36.59% $78,027 $952 $7,093 0 0
Jason G. Cook 16 63 3.94 9 5 4 14.29% 28.57% $163,927 $2,602 $10,245 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 17 89 5.24 6 10 10 6.74% 29.21% $61,959 $696 $3,645 0 0
Jason G. Cook 18 59 3.28 7 2 8 11.86% 28.81% $88,757 $1,504 $4,931 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 20 113 5.65 10 20 14 8.85% 38.94% $112,777 $998 $5,639 0 0
Jason G. Cook 16 52 3.25 3 5 6 5.77% 26.92% $68,030 $1,308 $4,252 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 23 91 3.96 18 7 10 19.78% 38.46% $157,021 $1,726 $6,827 0 0
Jason G. Cook 14 52 3.71 6 4 3 11.54% 25% $101,767 $1,957 $7,269 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 18 62 3.44 6 11 4 9.68% 33.87% $95,119 $1,534 $5,284 0 0
Jason G. Cook 5 15 3 1 1 2 6.67% 26.67% $13,000 $867 $2,600 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 17 68 4 5 5 7 7.35% 25% $67,531 $993 $3,972 0 0
Jason G. Cook 4 8 2 0 1 2 0% 37.5% $10,851 $1,356 $2,713 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 22 87 3.95 9 10 7 10.34% 29.89% $82,999 $954 $3,773 0 0
Jason G. Cook 11 23 2.09 2 3 2 8.7% 30.43% $28,542 $1,241 $2,595 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 28 114 4.07 8 11 8 7.02% 23.68% $108,426 $951 $3,872 0 0
Jason G. Cook 5 17 3.4 2 5 0 11.76% 41.18% $49,165 $2,892 $9,833 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 25 113 4.52 5 11 8 4.42% 21.24% $72,532 $642 $2,901 0 0
Jason G. Cook 15 67 4.47 5 13 5 7.46% 34.33% $154,579 $2,307 $10,305 0 1

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 32 129 4.03 9 6 13 6.98% 21.71% $62,549 $485 $1,955 0 0
Jason G. Cook 15 59 3.93 12 5 6 20.34% 38.98% $234,622 $3,977 $15,641 0 3

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 62 228 3.68 22 23 24 9.65% 30.26% $93,381 $410 $1,506 0 0
Jason G. Cook 16 66 4.13 5 4 13 7.58% 33.33% $98,196 $1,488 $6,137 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 53 258 4.87 40 32 35 15.5% 41.47% $114,978 $446 $2,169 0 0
Jason G. Cook 12 46 3.83 4 6 4 8.7% 30.43% $34,293 $746 $2,858 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 44 161 3.66 20 21 14 12.42% 34.16% $76,007 $472 $1,727 0 0
Jason G. Cook 7 29 4.14 4 3 2 13.79% 31.03% $30,857 $1,064 $4,408 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 47 225 4.79 20 26 33 8.89% 35.11% $86,677 $385 $1,844 0 0
Jason G. Cook 1 5 5 0 0 1 0% 20% $431 $86 $431 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Donald G. Horrell 45 254 5.64 24 26 27 9.45% 30.31% $79,231 $312 $1,761 0 0
Jason G. Cook 2 2 1 0 0 0 0% 0% $291 $146 $146 0 0