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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
Jeffery Scott Jones 7 38 5.43 3 0 8 7.89% 28.95% $66,749 $1,757 $9,536 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
Jeffery Scott Jones 7 30 4.29 0 3 3 0% 20% $34,484 $1,149 $4,926 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
Jeffery Scott Jones 9 52 5.78 4 9 11 7.69% 46.15% $100,687 $1,936 $11,187 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
Jeffery Scott Jones 11 31 2.82 0 5 5 0% 32.26% $19,699 $635 $1,791 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
Jeffery Scott Jones 19 84 4.42 6 8 7 7.14% 25% $74,507 $887 $3,921 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
Jeffery Scott Jones 18 91 5.06 5 12 9 5.49% 28.57% $94,216 $1,035 $5,234 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
Jeffery Scott Jones 10 42 4.2 5 2 5 11.9% 28.57% $43,359 $1,032 $4,336 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
Jeffery Scott Jones 6 37 6.17 1 5 5 2.7% 29.73% $35,731 $966 $5,955 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
Jeffery Scott Jones 2 9 4.5 0 2 2 0% 44.44% $5,365 $596 $2,683 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
Jeffery Scott Jones 14 49 3.5 3 4 8 6.12% 30.61% $42,714 $872 $3,051 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
Jeffery Scott Jones 19 40 2.11 9 6 5 22.5% 50% $24,494 $612 $1,289 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
Jeffery Scott Jones 39 173 4.44 13 19 18 7.51% 28.9% $130,268 $753 $3,340 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
Jeffery Scott Jones 33 148 4.48 11 12 10 7.43% 22.3% $110,149 $744 $3,338 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
Jeffery Scott Jones 15 73 4.87 13 13 5 17.81% 42.47% $92,309 $1,265 $6,154 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
Jeffery Scott Jones 41 252 6.15 26 28 33 10.32% 34.52% $135,065 $536 $3,294 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
Jeffery Scott Jones 22 45 2.05 13 2 2 28.89% 37.78% $40,957 $910 $1,862 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
Jeffery Scott Jones 43 156 3.63 7 15 15 4.49% 23.72% $134,690 $863 $3,132 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
Jeffery Scott Jones 33 96 2.91 5 18 9 5.21% 33.33% $111,913 $1,166 $3,391 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
Jeffery Scott Jones 45 174 3.87 13 16 17 7.47% 26.44% $155,809 $895 $3,462 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
Jeffery Scott Jones 39 156 4 13 15 14 8.33% 26.92% $213,486 $1,369 $5,474 0 1
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
Jeffery Scott Jones 22 102 4.64 11 14 9 10.78% 33.33% $42,655 $418 $1,939 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
Jeffery Scott Jones 14 56 4 1 2 8 1.79% 19.64% $33,786 $603 $2,413 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
Jeffery Scott Jones 11 54 4.91 5 2 2 9.26% 16.67% $27,959 $518 $2,542 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
Jeffery Scott Jones 11 41 3.73 0 1 1 0% 4.88% $3,095 $75 $281 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
Jeffery Scott Jones 9 29 3.22 0 0 1 0% 3.45% $1,307 $45 $145 0 0
Leonard M. Slager 14 79 5.64 3 2 7 3.8% 15.19% $22,464 $284 $1,605 0 0