Skip to:

OwnerView is growing. Help introduce others to ownership.
Visit the
New Site

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
Mark E. Thomas 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
James A. Jerkens 4 4 1 0 0 0 0% 0% $65,000 $16,250 $16,250 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
Mark E. Thomas 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
James A. Jerkens 4 4 1 0 1 0 0% 25% $215,000 $53,750 $53,750 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
Mark E. Thomas 7 30 4.29 4 5 6 13.33% 50% $68,702 $2,290 $9,815 0 0
James A. Jerkens 8 16 2 2 1 4 12.5% 43.75% $174,195 $10,887 $21,774 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
Mark E. Thomas 10 39 3.9 7 7 7 17.95% 53.85% $119,550 $3,065 $11,955 0 0
James A. Jerkens 18 49 2.72 4 6 2 8.16% 24.49% $365,995 $7,469 $20,333 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
Mark E. Thomas 12 41 3.42 2 4 9 4.88% 36.59% $52,303 $1,276 $4,359 0 0
James A. Jerkens 26 96 3.69 10 11 16 10.42% 38.54% $1,098,609 $11,444 $42,254 1 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
Mark E. Thomas 12 51 4.25 9 8 7 17.65% 47.06% $133,723 $2,622 $11,144 0 0
James A. Jerkens 32 101 3.16 11 14 16 10.89% 40.59% $788,611 $7,808 $24,644 1 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
Mark E. Thomas 14 65 4.64 10 10 8 15.38% 43.08% $126,136 $1,941 $9,010 0 0
James A. Jerkens 45 129 2.87 20 19 14 15.5% 41.09% $3,256,533 $25,244 $72,367 6 7

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
Mark E. Thomas 15 63 4.2 7 11 14 11.11% 50.79% $122,995 $1,952 $8,200 0 0
James A. Jerkens 49 174 3.55 38 31 21 21.84% 51.72% $2,922,392 $16,795 $59,641 4 8

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
Mark E. Thomas 16 71 4.44 9 6 12 12.68% 38.03% $139,148 $1,960 $8,697 0 0
James A. Jerkens 50 189 3.78 34 37 29 17.99% 52.91% $5,572,571 $29,485 $111,451 3 8

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
Mark E. Thomas 16 62 3.88 7 5 12 11.29% 38.71% $137,553 $2,219 $8,597 0 0
James A. Jerkens 50 199 3.98 40 42 21 20.1% 51.76% $4,261,113 $21,413 $85,222 6 6

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
Mark E. Thomas 15 40 2.67 7 8 2 17.5% 42.5% $94,759 $2,369 $6,317 0 0
James A. Jerkens 42 175 4.17 26 28 31 14.86% 48.57% $4,441,629 $25,381 $105,753 6 10

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
Mark E. Thomas 16 47 2.94 6 6 6 12.77% 38.3% $91,139 $1,939 $5,696 0 0
James A. Jerkens 40 145 3.63 35 17 18 24.14% 48.28% $4,181,894 $28,841 $104,547 4 8

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
Mark E. Thomas 14 40 2.86 3 3 5 7.5% 27.5% $48,106 $1,203 $3,436 0 0
James A. Jerkens 33 112 3.39 21 13 9 18.75% 38.39% $974,853 $8,704 $29,541 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
Mark E. Thomas 11 37 3.36 4 7 4 10.81% 40.54% $128,963 $3,485 $11,724 0 0
James A. Jerkens 46 144 3.13 17 23 18 11.81% 40.28% $947,607 $6,581 $20,600 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
Mark E. Thomas 14 43 3.07 5 5 6 11.63% 37.21% $119,061 $2,769 $8,504 0 1
James A. Jerkens 33 138 4.18 17 18 18 12.32% 38.41% $727,349 $5,271 $22,041 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
Mark E. Thomas 12 32 2.67 1 2 6 3.13% 28.13% $28,655 $895 $2,388 0 0
James A. Jerkens 31 125 4.03 26 15 17 20.8% 46.4% $1,893,989 $15,152 $61,096 3 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
Mark E. Thomas 15 59 3.93 4 5 4 6.78% 22.03% $55,020 $933 $3,668 0 0
James A. Jerkens 53 175 3.3 32 35 22 18.29% 50.86% $2,140,650 $12,232 $40,390 2 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
Mark E. Thomas 8 43 5.38 5 4 4 11.63% 30.23% $79,070 $1,839 $9,884 0 0
James A. Jerkens 61 220 3.61 43 38 25 19.55% 48.18% $2,649,091 $12,041 $43,428 6 9

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
Mark E. Thomas 13 49 3.77 2 2 6 4.08% 20.41% $55,104 $1,125 $4,239 0 0
James A. Jerkens 57 214 3.75 52 25 35 24.3% 52.34% $3,809,641 $17,802 $66,836 4 14

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
Mark E. Thomas 13 56 4.31 5 2 4 8.93% 19.64% $58,559 $1,046 $4,505 0 0
James A. Jerkens 63 264 4.19 47 30 45 17.8% 46.21% $2,443,339 $9,255 $38,783 5 8

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
Mark E. Thomas 11 59 5.36 7 7 13 11.86% 45.76% $115,477 $1,957 $10,498 0 0
James A. Jerkens 49 228 4.65 55 47 24 24.12% 55.26% $3,877,228 $17,005 $79,127 4 9

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
Mark E. Thomas 20 121 6.05 15 13 26 12.4% 44.63% $137,271 $1,134 $6,864 0 0
James A. Jerkens 47 207 4.4 43 40 22 20.77% 50.72% $2,480,146 $11,981 $52,769 4 11

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
Mark E. Thomas 21 108 5.14 12 16 18 11.11% 42.59% $136,905 $1,268 $6,519 0 0
James A. Jerkens 44 194 4.41 46 30 30 23.71% 54.64% $2,303,508 $11,874 $52,352 5 8

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
Mark E. Thomas 25 106 4.24 9 16 16 8.49% 38.68% $120,195 $1,134 $4,808 0 0
James A. Jerkens 46 214 4.65 53 32 35 24.77% 56.07% $3,063,904 $14,317 $66,607 7 13

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
Mark E. Thomas 21 114 5.43 13 19 14 11.4% 40.35% $124,092 $1,089 $5,909 0 0
James A. Jerkens 43 183 4.26 40 23 22 21.86% 46.45% $1,814,586 $9,916 $42,200 1 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
Mark E. Thomas 25 137 5.48 13 22 27 9.49% 45.26% $188,598 $1,377 $7,544 0 0
James A. Jerkens 44 211 4.8 59 36 28 27.96% 58.29% $2,504,712 $11,871 $56,925 4 6

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
Mark E. Thomas 21 113 5.38 20 18 19 17.7% 50.44% $216,670 $1,917 $10,318 0 0
James A. Jerkens 37 137 3.7 31 19 31 22.63% 59.12% $1,078,689 $7,874 $29,154 1 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
Mark E. Thomas 14 83 5.93 12 12 17 14.46% 49.4% $125,589 $1,513 $8,971 0 1
James A. Jerkens 35 186 5.31 35 33 21 18.82% 47.85% $1,404,423 $7,551 $40,126 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
Mark E. Thomas 16 97 6.06 10 11 13 10.31% 35.05% $75,640 $780 $4,728 0 0
James A. Jerkens 12 30 2.5 9 5 4 30% 60% $287,161 $9,572 $23,930 1 2