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 Doering 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael L. Slager 2 4 2 0 1 1 0% 50% $10,920 $2,730 $5,460 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 Doering 2 6 3 0 0 0 0% 0% $2,352 $392 $1,176 0 0
Michael L. Slager 6 40 6.67 3 8 11 7.5% 55% $89,261 $2,232 $14,877 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 Doering 3 23 7.67 1 3 3 4.35% 30.43% $52,679 $2,290 $17,560 0 0
Michael L. Slager 5 31 6.2 1 5 6 3.23% 38.71% $51,804 $1,671 $10,361 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 Doering 11 36 3.27 2 3 4 5.56% 25% $60,716 $1,687 $5,520 0 0
Michael L. Slager 4 34 8.5 1 5 3 2.94% 26.47% $80,251 $2,360 $20,063 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 Doering 7 50 7.14 2 1 6 4% 18% $76,809 $1,536 $10,973 0 0
Michael L. Slager 4 27 6.75 0 0 3 0% 11.11% $29,254 $1,083 $7,314 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 Doering 5 54 10.8 2 9 4 3.7% 27.78% $85,858 $1,590 $17,172 0 0
Michael L. Slager 4 20 5 3 4 3 15% 50% $66,706 $3,335 $16,677 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 Doering 9 51 5.67 5 5 4 9.8% 27.45% $90,301 $1,771 $10,033 0 0
Michael L. Slager 2 17 8.5 2 0 3 11.76% 29.41% $37,581 $2,211 $18,791 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 Doering 18 122 6.78 6 13 13 4.92% 26.23% $193,577 $1,587 $10,754 0 0
Michael L. Slager 1 4 4 1 0 1 25% 50% $19,040 $4,760 $19,040 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 Doering 14 103 7.36 8 15 11 7.77% 33.01% $269,739 $2,619 $19,267 0 0
Michael L. Slager 1 2 2 0 1 0 0% 50% $5,925 $2,963 $5,925 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 Doering 18 157 8.72 22 27 26 14.01% 47.77% $250,017 $1,592 $13,890 0 0
Michael L. Slager 2 11 5.5 0 2 2 0% 36.36% $7,743 $704 $3,872 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 Doering 19 152 8 18 12 12 11.84% 27.63% $153,169 $1,008 $8,062 0 0
Michael L. Slager 3 17 5.67 2 2 1 11.76% 29.41% $20,734 $1,220 $6,911 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 Doering 10 78 7.8 10 10 13 12.82% 42.31% $94,539 $1,212 $9,454 0 0
Michael L. Slager 2 2 1 0 0 0 0% 0% $310 $155 $155 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 Doering 11 58 5.27 4 5 8 6.9% 29.31% $58,013 $1,000 $5,274 0 0
Michael L. Slager 11 33 3 4 5 1 12.12% 30.3% $69,965 $2,120 $6,360 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
Mark Doering 14 83 5.93 13 11 12 15.66% 43.37% $129,967 $1,566 $9,283 0 0
Michael L. Slager 12 76 6.33 3 8 10 3.95% 27.63% $86,699 $1,141 $7,225 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 Doering 15 88 5.87 9 11 16 10.23% 40.91% $90,418 $1,027 $6,028 0 0
Michael L. Slager 6 38 6.33 5 3 4 13.16% 31.58% $71,341 $1,877 $11,890 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 Doering 13 84 6.46 7 8 16 8.33% 36.9% $62,657 $746 $4,820 0 0
Michael L. Slager 5 43 8.6 6 7 8 13.95% 48.84% $42,086 $979 $8,417 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 Doering 20 113 5.65 15 15 18 13.27% 42.48% $93,763 $830 $4,688 0 0
Michael L. Slager 4 28 7 2 5 0 7.14% 25% $17,805 $636 $4,451 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 Doering 16 124 7.75 10 17 16 8.06% 34.68% $60,512 $488 $3,782 0 0
Michael L. Slager 2 7 3.5 1 0 1 14.29% 28.57% $4,748 $678 $2,374 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 Doering 19 125 6.58 15 15 12 12% 33.6% $56,715 $454 $2,985 0 0
Michael L. Slager 13 41 3.15 2 2 3 4.88% 17.07% $15,943 $389 $1,226 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 Doering 17 117 6.88 14 18 17 11.97% 41.88% $60,623 $518 $3,566 0 0
Michael L. Slager 2 8 4 0 1 0 0% 12.5% $1,380 $173 $690 0 0