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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
Debbie Van Horne 5 16 3.2 0 0 3 0% 18.75% $7,270 $454 $1,454 0 0
Joseph P. Mahan 8 48 6 5 9 8 10.42% 45.83% $80,938 $1,686 $10,117 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
Debbie Van Horne 12 54 4.5 5 3 6 9.26% 25.93% $53,757 $996 $4,480 0 0
Joseph P. Mahan 10 81 8.1 9 13 9 11.11% 38.27% $165,366 $2,042 $16,537 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
Debbie Van Horne 6 22 3.67 1 2 3 4.55% 27.27% $30,131 $1,370 $5,022 0 0
Joseph P. Mahan 13 83 6.38 14 6 23 16.87% 51.81% $203,369 $2,450 $15,644 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
Debbie Van Horne 14 52 3.71 5 4 8 9.62% 32.69% $69,804 $1,342 $4,986 0 0
Joseph P. Mahan 11 101 9.18 5 14 16 4.95% 34.65% $172,023 $1,703 $15,638 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
Debbie Van Horne 14 37 2.64 5 6 6 13.51% 45.95% $96,065 $2,596 $6,862 0 1
Joseph P. Mahan 10 88 8.8 16 14 17 18.18% 53.41% $301,254 $3,423 $30,125 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
Debbie Van Horne 9 34 3.78 3 7 3 8.82% 38.24% $46,080 $1,355 $5,120 0 0
Joseph P. Mahan 10 81 8.1 16 16 15 19.75% 58.02% $217,536 $2,686 $21,754 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
Debbie Van Horne 8 42 5.25 5 3 4 11.9% 28.57% $40,168 $956 $5,021 0 0
Joseph P. Mahan 14 89 6.36 8 8 15 8.99% 34.83% $153,245 $1,722 $10,946 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
Debbie Van Horne 8 22 2.75 2 0 2 9.09% 18.18% $11,221 $510 $1,403 0 0
Joseph P. Mahan 13 103 7.92 10 14 17 9.71% 39.81% $184,195 $1,788 $14,169 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
Debbie Van Horne 12 48 4 2 6 4 4.17% 25% $26,175 $545 $2,181 0 0
Joseph P. Mahan 7 67 9.57 8 4 14 11.94% 38.81% $169,033 $2,523 $24,148 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
Debbie Van Horne 12 40 3.33 8 4 6 20% 45% $50,739 $1,268 $4,228 0 0
Joseph P. Mahan 13 76 5.85 10 12 9 13.16% 40.79% $142,620 $1,877 $10,971 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
Debbie Van Horne 10 22 2.2 4 5 3 18.18% 54.55% $43,549 $1,980 $4,355 0 0
Joseph P. Mahan 6 79 13.17 6 11 8 7.59% 31.65% $64,948 $822 $10,825 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
Debbie Van Horne 8 34 4.25 5 7 4 14.71% 47.06% $39,091 $1,150 $4,886 0 0
Joseph P. Mahan 10 68 6.8 5 7 7 7.35% 27.94% $72,046 $1,060 $7,205 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
Debbie Van Horne 22 73 3.32 5 10 8 6.85% 31.51% $46,648 $639 $2,120 0 0
Joseph P. Mahan 6 47 7.83 5 3 6 10.64% 29.79% $74,289 $1,581 $12,382 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
Debbie Van Horne 17 67 3.94 9 9 13 13.43% 46.27% $53,859 $804 $3,168 0 0
Joseph P. Mahan 6 54 9 5 3 9 9.26% 31.48% $68,237 $1,264 $11,373 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
Debbie Van Horne 32 89 2.78 7 7 20 7.87% 38.2% $55,675 $626 $1,740 0 0
Joseph P. Mahan 5 33 6.6 1 2 4 3.03% 21.21% $15,481 $469 $3,096 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
Debbie Van Horne 18 64 3.56 7 3 5 10.94% 23.44% $33,992 $531 $1,888 0 0
Joseph P. Mahan 7 53 7.57 1 0 4 1.89% 9.43% $13,699 $258 $1,957 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
Debbie Van Horne 26 89 3.42 6 11 13 6.74% 33.71% $41,804 $470 $1,608 0 0
Joseph P. Mahan 9 65 7.22 1 2 8 1.54% 16.92% $24,676 $380 $2,742 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
Debbie Van Horne 31 116 3.74 6 9 13 5.17% 24.14% $41,045 $354 $1,324 0 0
Joseph P. Mahan 9 74 8.22 6 5 6 8.11% 22.97% $61,630 $833 $6,848 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
Debbie Van Horne 37 111 3 9 11 9 8.11% 26.13% $58,954 $531 $1,593 0 0
Joseph P. Mahan 7 80 11.43 5 7 7 6.25% 23.75% $67,314 $841 $9,616 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
Debbie Van Horne 35 124 3.54 17 17 16 13.71% 40.32% $100,509 $811 $2,872 0 0
Joseph P. Mahan 11 79 7.18 5 2 8 6.33% 18.99% $77,397 $980 $7,036 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
Debbie Van Horne 28 107 3.82 15 21 15 14.02% 47.66% $96,946 $906 $3,462 0 0
Joseph P. Mahan 16 110 6.88 6 11 16 5.45% 30% $119,074 $1,082 $7,442 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
Debbie Van Horne 32 100 3.13 21 12 9 21% 42% $83,029 $830 $2,595 0 0
Joseph P. Mahan 13 99 7.62 9 10 15 9.09% 34.34% $171,698 $1,734 $13,208 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
Debbie Van Horne 29 113 3.9 10 9 10 8.85% 25.66% $67,727 $599 $2,335 0 0
Joseph P. Mahan 14 101 7.21 10 10 19 9.9% 38.61% $180,324 $1,785 $12,880 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
Debbie Van Horne 28 98 3.5 16 17 14 16.33% 47.96% $127,924 $1,305 $4,569 0 0
Joseph P. Mahan 20 122 6.1 14 11 16 11.48% 33.61% $187,205 $1,534 $9,360 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
Debbie Van Horne 17 68 4 12 16 8 17.65% 52.94% $110,403 $1,624 $6,494 0 1
Joseph P. Mahan 18 129 7.17 15 16 17 11.63% 37.21% $221,287 $1,715 $12,294 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
Debbie Van Horne 30 114 3.8 13 20 17 11.4% 43.86% $80,197 $703 $2,673 0 0
Joseph P. Mahan 20 137 6.85 20 19 19 14.6% 42.34% $330,048 $2,409 $16,502 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
Debbie Van Horne 35 114 3.26 12 15 13 10.53% 35.09% $63,538 $557 $1,815 0 0
Joseph P. Mahan 16 119 7.44 21 18 15 17.65% 45.38% $267,509 $2,248 $16,719 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
Debbie Van Horne 43 191 4.44 25 26 24 13.09% 39.27% $100,072 $524 $2,327 0 0
Joseph P. Mahan 17 145 8.53 26 16 17 17.93% 40.69% $257,302 $1,774 $15,135 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
Debbie Van Horne 33 123 3.73 12 17 17 9.76% 37.4% $68,881 $560 $2,087 0 0
Joseph P. Mahan 23 210 9.13 19 19 23 9.05% 29.05% $205,898 $980 $8,952 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
Debbie Van Horne 24 93 3.88 10 10 9 10.75% 31.18% $48,730 $524 $2,030 0 0
Joseph P. Mahan 27 221 8.19 25 21 26 11.31% 32.58% $236,617 $1,071 $8,764 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
Debbie Van Horne 18 79 4.39 6 13 15 7.59% 43.04% $43,116 $546 $2,395 0 0
Joseph P. Mahan 21 190 9.05 24 19 34 12.63% 40.53% $212,399 $1,118 $10,114 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
Debbie Van Horne 15 56 3.73 7 5 8 12.5% 35.71% $27,518 $491 $1,835 0 0
Joseph P. Mahan 22 193 8.77 26 26 24 13.47% 39.38% $231,427 $1,199 $10,519 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
Debbie Van Horne 1 2 2 0 1 1 0% 100% $1,160 $580 $1,160 0 0
Joseph P. Mahan 18 148 8.22 14 13 18 9.46% 30.41% $161,913 $1,094 $8,995 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
Debbie Van Horne 3 10 3.33 0 0 1 0% 10% $1,408 $141 $469 0 0
Joseph P. Mahan 19 158 8.32 16 18 13 10.13% 29.75% $152,600 $966 $8,032 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
Debbie Van Horne 11 37 3.36 1 0 5 2.7% 16.22% $5,947 $161 $541 0 0
Joseph P. Mahan 17 174 10.24 18 25 19 10.34% 35.63% $170,371 $979 $10,022 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
Debbie Van Horne 19 65 3.42 9 9 6 13.85% 36.92% $21,273 $327 $1,120 0 0
Joseph P. Mahan 26 227 8.73 20 23 25 8.81% 29.96% $107,961 $476 $4,152 0 0