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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
Rey M. Marquez 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
William D. Cowans 35 69 1.97 10 14 7 14.49% 44.93% $319,839 $4,635 $9,138 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
Rey M. Marquez 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
William D. Cowans 62 169 2.73 30 29 32 17.75% 53.85% $1,404,995 $8,314 $22,661 0 2

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
Rey M. Marquez 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
William D. Cowans 52 146 2.81 33 19 28 22.6% 54.79% $1,590,799 $10,896 $30,592 2 5

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
Rey M. Marquez 2 11 5.5 1 0 1 9.09% 18.18% $15,056 $1,369 $7,528 0 0
William D. Cowans 67 172 2.57 45 33 19 26.16% 56.4% $1,468,536 $8,538 $21,918 2 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
Rey M. Marquez 5 17 3.4 2 0 2 11.76% 23.53% $25,246 $1,485 $5,049 0 0
William D. Cowans 56 151 2.7 36 27 21 23.84% 55.63% $1,151,306 $7,625 $20,559 1 2

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
Rey M. Marquez 3 25 8.33 1 6 6 4% 52% $39,413 $1,577 $13,138 0 0
William D. Cowans 36 129 3.58 33 23 26 25.58% 63.57% $701,887 $5,441 $19,497 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
Rey M. Marquez 4 13 3.25 1 0 0 7.69% 7.69% $5,836 $449 $1,459 0 0
William D. Cowans 39 109 2.79 26 25 15 23.85% 60.55% $543,244 $4,984 $13,929 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
Rey M. Marquez 6 39 6.5 2 4 5 5.13% 28.21% $36,522 $936 $6,087 0 0
William D. Cowans 40 147 3.68 34 34 19 23.13% 59.18% $723,093 $4,919 $18,077 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
Rey M. Marquez 11 43 3.91 4 2 5 9.3% 25.58% $45,480 $1,058 $4,135 0 0
William D. Cowans 48 165 3.44 35 37 23 21.21% 57.58% $865,284 $5,244 $18,027 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
Rey M. Marquez 9 49 5.44 7 3 6 14.29% 32.65% $76,900 $1,569 $8,544 0 0
William D. Cowans 65 187 2.88 41 25 27 21.93% 49.73% $860,503 $4,602 $13,239 0 2

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
Rey M. Marquez 7 33 4.71 2 5 8 6.06% 45.45% $43,700 $1,324 $6,243 0 0
William D. Cowans 55 179 3.25 41 38 26 22.91% 58.66% $865,135 $4,833 $15,730 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
Rey M. Marquez 9 40 4.44 3 4 5 7.5% 30% $52,115 $1,303 $5,791 0 0
William D. Cowans 46 156 3.39 38 27 19 24.36% 53.85% $829,684 $5,318 $18,037 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
Rey M. Marquez 7 39 5.57 2 3 4 5.13% 23.08% $33,992 $872 $4,856 0 0
William D. Cowans 38 131 3.45 50 27 7 38.17% 64.12% $573,130 $4,375 $15,082 0 2

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
Rey M. Marquez 6 22 3.67 3 2 1 13.64% 27.27% $27,249 $1,239 $4,542 0 0
William D. Cowans 42 152 3.62 53 25 21 34.87% 65.13% $540,009 $3,553 $12,857 0 2

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
Rey M. Marquez 12 49 4.08 3 1 2 6.12% 12.24% $25,450 $519 $2,121 0 0
William D. Cowans 39 126 3.23 40 20 17 31.75% 61.11% $447,612 $3,552 $11,477 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
Rey M. Marquez 8 41 5.13 4 7 3 9.76% 34.15% $36,626 $893 $4,578 0 0
William D. Cowans 49 198 4.04 51 43 24 25.76% 59.6% $510,396 $2,578 $10,416 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
Rey M. Marquez 6 41 6.83 5 0 7 12.2% 29.27% $36,485 $890 $6,081 0 0
William D. Cowans 59 209 3.54 74 40 29 35.41% 68.42% $762,525 $3,648 $12,924 0 4

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
Rey M. Marquez 5 37 7.4 2 2 4 5.41% 21.62% $23,655 $639 $4,731 0 0
William D. Cowans 39 177 4.54 50 34 27 28.25% 62.71% $652,411 $3,686 $16,728 0 4

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
Rey M. Marquez 6 53 8.83 3 7 6 5.66% 30.19% $35,938 $678 $5,990 0 0
William D. Cowans 27 128 4.74 28 21 16 21.88% 50.78% $279,191 $2,181 $10,340 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
Rey M. Marquez 4 38 9.5 1 3 3 2.63% 18.42% $14,454 $380 $3,614 0 0
William D. Cowans 33 170 5.15 48 24 22 28.24% 55.29% $342,283 $2,013 $10,372 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
Rey M. Marquez 4 28 7 1 3 5 3.57% 32.14% $14,265 $509 $3,566 0 0
William D. Cowans 32 170 5.31 41 25 17 24.12% 48.82% $462,079 $2,718 $14,440 0 5

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
Rey M. Marquez 4 11 2.75 0 1 0 0% 9.09% $2,803 $255 $701 0 0
William D. Cowans 28 150 5.36 26 25 18 17.33% 46% $220,901 $1,473 $7,889 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
Rey M. Marquez 2 16 8 1 3 2 6.25% 37.5% $12,283 $768 $6,142 0 0
William D. Cowans 21 137 6.52 29 27 17 21.17% 53.28% $164,230 $1,199 $7,820 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
Rey M. Marquez 12 47 3.92 1 3 1 2.13% 10.64% $18,274 $389 $1,523 0 0
William D. Cowans 16 103 6.44 26 25 10 25.24% 59.22% $151,837 $1,474 $9,490 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
Rey M. Marquez 9 68 7.56 5 7 4 7.35% 23.53% $43,973 $647 $4,886 0 0
William D. Cowans 19 102 5.37 17 19 12 16.67% 47.06% $144,653 $1,418 $7,613 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
Rey M. Marquez 12 31 2.58 2 1 2 6.45% 16.13% $13,250 $427 $1,104 0 0
William D. Cowans 18 93 5.17 16 15 9 17.2% 43.01% $108,051 $1,162 $6,003 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
Rey M. Marquez 8 72 9 4 12 6 5.56% 30.56% $46,704 $649 $5,838 0 0
William D. Cowans 5 22 4.4 3 0 4 13.64% 31.82% $17,188 $781 $3,438 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
Rey M. Marquez 15 112 7.47 13 9 6 11.61% 25% $49,068 $438 $3,271 0 0
William D. Cowans 4 30 7.5 3 7 5 10% 50% $27,613 $920 $6,903 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
Rey M. Marquez 10 41 4.1 2 4 1 4.88% 17.07% $9,733 $237 $973 0 0
William D. Cowans 12 44 3.67 7 8 7 15.91% 50% $48,715 $1,107 $4,060 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
Rey M. Marquez 9 44 4.89 1 3 3 2.27% 15.91% $6,472 $147 $719 0 0
William D. Cowans 9 42 4.67 6 4 3 14.29% 30.95% $25,382 $604 $2,820 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
Rey M. Marquez 10 48 4.8 2 3 5 4.17% 20.83% $11,118 $232 $1,112 0 0
William D. Cowans 8 41 5.13 9 3 7 21.95% 46.34% $33,425 $815 $4,178 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
Rey M. Marquez 16 97 6.06 1 5 2 1.03% 8.25% $7,188 $74 $449 0 0
William D. Cowans 4 21 5.25 5 4 1 23.81% 47.62% $16,869 $803 $4,217 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
Rey M. Marquez 24 131 5.46 6 7 17 4.58% 22.9% $20,325 $155 $847 0 0
William D. Cowans 4 38 9.5 3 2 5 7.89% 26.32% $12,184 $321 $3,046 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
Rey M. Marquez 13 51 3.92 2 4 6 3.92% 23.53% $16,622 $326 $1,279 0 0
William D. Cowans 3 7 2.33 1 1 0 14.29% 28.57% $2,632 $376 $877 0 0