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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
John A. Shirreffs 23 76 3.3 11 17 18 14.47% 60.53% $2,665,940 $35,078 $115,910 3 3
Rene Serrano 1 1 1 0 0 0 0% 0% $165 $165 $165 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
John A. Shirreffs 43 117 2.72 10 16 23 8.55% 41.88% $1,040,510 $8,893 $24,198 2 2
Rene Serrano 3 6 2 0 0 0 0% 0% $1,365 $228 $455 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
John A. Shirreffs 31 95 3.06 11 6 18 11.58% 36.84% $1,004,900 $10,578 $32,416 0 0
Rene Serrano 6 33 5.5 1 1 5 3.03% 21.21% $11,030 $334 $1,838 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
John A. Shirreffs 35 100 2.86 14 13 12 14% 39% $1,956,365 $19,564 $55,896 5 6
Rene Serrano 4 12 3 0 0 2 0% 16.67% $2,640 $220 $660 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
John A. Shirreffs 31 111 3.58 18 20 22 16.22% 54.05% $2,056,016 $18,523 $66,323 5 6
Rene Serrano 17 60 3.53 7 8 7 11.67% 36.67% $45,710 $762 $2,689 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
John A. Shirreffs 26 77 2.96 13 15 9 16.88% 48.05% $1,746,160 $22,677 $67,160 5 5
Rene Serrano 9 42 4.67 12 6 7 28.57% 59.52% $77,412 $1,843 $8,601 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
John A. Shirreffs 28 117 4.18 26 19 17 22.22% 52.99% $1,921,538 $16,423 $68,626 5 7
Rene Serrano 10 49 4.9 5 6 6 10.2% 34.69% $36,948 $754 $3,695 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
John A. Shirreffs 27 98 3.63 9 12 19 9.18% 40.82% $598,395 $6,106 $22,163 0 1
Rene Serrano 13 57 4.38 5 5 8 8.77% 31.58% $38,744 $680 $2,980 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
John A. Shirreffs 24 70 2.92 6 15 9 8.57% 42.86% $1,349,800 $19,283 $56,242 3 3
Rene Serrano 3 27 9 3 4 3 11.11% 37.04% $19,494 $722 $6,498 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
John A. Shirreffs 25 93 3.72 9 11 21 9.68% 44.09% $927,483 $9,973 $37,099 2 2
Rene Serrano 13 44 3.38 4 3 4 9.09% 25% $24,157 $549 $1,858 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
John A. Shirreffs 22 79 3.59 13 13 6 16.46% 40.51% $927,764 $11,744 $42,171 0 1
Rene Serrano 7 27 3.86 3 3 2 11.11% 29.63% $15,537 $575 $2,220 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
John A. Shirreffs 42 126 3 13 19 19 10.32% 40.48% $1,485,527 $11,790 $35,370 1 1
Rene Serrano 10 60 6 2 2 7 3.33% 18.33% $16,661 $278 $1,666 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
John A. Shirreffs 50 140 2.8 23 20 13 16.43% 40% $1,734,523 $12,389 $34,690 2 5
Rene Serrano 11 46 4.18 1 5 4 2.17% 21.74% $15,348 $334 $1,395 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
John A. Shirreffs 49 139 2.84 20 23 25 14.39% 48.92% $1,618,296 $11,642 $33,026 3 4
Rene Serrano 6 26 4.33 4 4 3 15.38% 42.31% $22,559 $868 $3,760 0 0