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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 Rubin 8 31 3.88 6 4 3 19.35% 41.94% $124,040 $4,001 $15,505 0 0
Leonard M. Slager 1 8 8 0 1 2 0% 37.5% $14,370 $1,796 $14,370 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 Rubin 10 36 3.6 4 10 8 11.11% 61.11% $81,240 $2,257 $8,124 0 0
Leonard M. Slager 8 28 3.5 1 5 5 3.57% 39.29% $100,100 $3,575 $12,513 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 Rubin 5 11 2.2 2 3 1 18.18% 54.55% $28,970 $2,634 $5,794 0 0
Leonard M. Slager 12 102 8.5 9 13 12 8.82% 33.33% $168,645 $1,653 $14,054 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 Rubin 1 7 7 0 1 0 0% 14.29% $4,540 $649 $4,540 0 0
Leonard M. Slager 11 55 5 11 5 7 20% 41.82% $187,684 $3,412 $17,062 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 Rubin 1 11 11 0 1 1 0% 18.18% $8,260 $751 $8,260 0 0
Leonard M. Slager 17 114 6.71 8 8 13 7.02% 25.44% $139,404 $1,223 $8,200 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 Rubin 2 7 3.5 0 0 2 0% 28.57% $4,400 $629 $2,200 0 0
Leonard M. Slager 16 106 6.63 9 10 10 8.49% 27.36% $151,287 $1,427 $9,455 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
Donald Rubin 3 12 4 0 2 1 0% 25% $7,425 $619 $2,475 0 0
Leonard M. Slager 30 115 3.83 9 18 13 7.83% 34.78% $148,782 $1,294 $4,959 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 Rubin 5 30 6 1 3 1 3.33% 16.67% $23,830 $794 $4,766 0 0
Leonard M. Slager 32 246 7.69 23 16 29 9.35% 27.64% $282,374 $1,148 $8,824 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 Rubin 5 31 6.2 0 3 3 0% 19.35% $17,520 $565 $3,504 0 0
Leonard M. Slager 33 204 6.18 20 29 20 9.8% 33.82% $244,880 $1,200 $7,421 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 Rubin 8 41 5.13 4 4 5 9.76% 31.71% $61,585 $1,502 $7,698 0 0
Leonard M. Slager 11 70 6.36 8 10 11 11.43% 41.43% $124,158 $1,774 $11,287 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 Rubin 10 36 3.6 1 5 2 2.78% 22.22% $31,692 $880 $3,169 0 0
Leonard M. Slager 14 81 5.79 6 13 13 7.41% 39.51% $125,674 $1,552 $8,977 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 Rubin 7 23 3.29 0 1 2 0% 13.04% $10,026 $436 $1,432 0 0
Leonard M. Slager 7 44 6.29 11 6 2 25% 43.18% $120,766 $2,745 $17,252 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 Rubin 2 2 1 0 0 0 0% 0% $160 $80 $80 0 0
Leonard M. Slager 10 37 3.7 5 3 3 13.51% 29.73% $66,506 $1,797 $6,651 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 Rubin 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Leonard M. Slager 10 42 4.2 3 3 4 7.14% 23.81% $62,615 $1,491 $6,262 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 Rubin 9 23 2.56 1 2 4 4.35% 30.43% $26,821 $1,166 $2,980 0 0
Leonard M. Slager 17 47 2.76 2 2 1 4.26% 10.64% $34,010 $724 $2,001 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 Rubin 6 16 2.67 2 0 1 12.5% 18.75% $23,470 $1,467 $3,912 0 0
Leonard M. Slager 16 37 2.31 3 3 3 8.11% 24.32% $31,363 $848 $1,960 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 Rubin 1 3 3 0 0 0 0% 0% $750 $250 $750 0 0
Leonard M. Slager 17 72 4.24 1 5 9 1.39% 20.83% $41,200 $572 $2,424 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 Rubin 3 18 6 1 2 0 5.56% 16.67% $17,221 $957 $5,740 0 0
Leonard M. Slager 21 64 3.05 6 4 10 9.38% 31.25% $70,569 $1,103 $3,360 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 Rubin 3 8 2.67 0 1 0 0% 12.5% $5,448 $681 $1,816 0 0
Leonard M. Slager 13 77 5.92 5 11 7 6.49% 29.87% $82,166 $1,067 $6,320 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 Rubin 4 16 4 1 0 0 6.25% 6.25% $11,633 $727 $2,908 0 0
Leonard M. Slager 11 18 1.64 0 3 1 0% 22.22% $13,290 $738 $1,208 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 Rubin 5 21 4.2 2 1 0 9.52% 14.29% $6,000 $286 $1,200 0 0
Leonard M. Slager 2 3 1.5 0 0 0 0% 0% $705 $235 $353 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 Rubin 3 20 6.67 1 2 2 5% 25% $4,703 $235 $1,568 0 0
Leonard M. Slager 6 30 5 1 4 4 3.33% 30% $17,446 $582 $2,908 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 Rubin 3 22 7.33 2 2 3 9.09% 31.82% $9,599 $436 $3,200 0 0
Leonard M. Slager 7 35 5 0 3 3 0% 17.14% $8,875 $254 $1,268 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 Rubin 11 39 3.55 4 1 6 10.26% 28.21% $12,417 $318 $1,129 0 0
Leonard M. Slager 13 75 5.77 3 6 5 4% 18.67% $29,051 $387 $2,235 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 Rubin 10 54 5.4 7 14 5 12.96% 48.15% $26,549 $492 $2,655 0 0
Leonard M. Slager 14 79 5.64 3 2 7 3.8% 15.19% $22,464 $284 $1,605 0 0