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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
Theodora S. Jacklin 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Mark Doering 2 6 3 0 0 0 0% 0% $2,352 $392 $1,176 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
Theodora S. Jacklin 2 12 6 0 0 0 0% 0% $1,710 $143 $855 0 0
Mark Doering 3 23 7.67 1 3 3 4.35% 30.43% $52,679 $2,290 $17,560 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
Theodora S. Jacklin 4 26 6.5 0 4 8 0% 46.15% $32,625 $1,255 $8,156 0 0
Mark Doering 11 36 3.27 2 3 4 5.56% 25% $60,716 $1,687 $5,520 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
Theodora S. Jacklin 3 17 5.67 0 2 2 0% 23.53% $12,338 $726 $4,113 0 0
Mark Doering 7 50 7.14 2 1 6 4% 18% $76,809 $1,536 $10,973 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
Theodora S. Jacklin 5 40 8 1 0 1 2.5% 5% $13,788 $345 $2,758 0 0
Mark Doering 5 54 10.8 2 9 4 3.7% 27.78% $85,858 $1,590 $17,172 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
Theodora S. Jacklin 6 22 3.67 0 1 3 0% 18.18% $8,908 $405 $1,485 0 0
Mark Doering 9 51 5.67 5 5 4 9.8% 27.45% $90,301 $1,771 $10,033 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
Theodora S. Jacklin 6 24 4 2 1 7 8.33% 41.67% $34,498 $1,437 $5,750 0 0
Mark Doering 18 122 6.78 6 13 13 4.92% 26.23% $193,577 $1,587 $10,754 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
Theodora S. Jacklin 5 22 4.4 0 0 1 0% 4.55% $4,702 $214 $940 0 0
Mark Doering 14 103 7.36 8 15 11 7.77% 33.01% $269,739 $2,619 $19,267 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
Theodora S. Jacklin 5 31 6.2 0 1 2 0% 9.68% $9,747 $314 $1,949 0 0
Mark Doering 13 97 7.46 11 16 12 11.34% 40.21% $287,314 $2,962 $22,101 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
Theodora S. Jacklin 8 36 4.5 1 0 2 2.78% 8.33% $24,132 $670 $3,017 0 0
Mark Doering 16 126 7.88 14 18 16 11.11% 38.1% $245,068 $1,945 $15,317 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
Theodora S. Jacklin 7 49 7 2 4 8 4.08% 28.57% $65,367 $1,334 $9,338 0 0
Mark Doering 16 104 6.5 9 11 19 8.65% 37.5% $214,170 $2,059 $13,386 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
Theodora S. Jacklin 8 56 7 3 4 13 5.36% 35.71% $83,288 $1,487 $10,411 0 0
Mark Doering 13 95 7.31 14 15 13 14.74% 44.21% $229,361 $2,414 $17,643 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
Theodora S. Jacklin 7 56 8 5 4 8 8.93% 30.36% $95,582 $1,707 $13,655 0 0
Mark Doering 14 109 7.79 7 9 12 6.42% 25.69% $96,322 $884 $6,880 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
Theodora S. Jacklin 8 65 8.13 2 2 8 3.08% 18.46% $73,182 $1,126 $9,148 0 0
Mark Doering 13 104 8 9 9 16 8.65% 32.69% $77,171 $742 $5,936 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
Theodora S. Jacklin 11 58 5.27 2 4 9 3.45% 25.86% $85,142 $1,468 $7,740 0 0
Mark Doering 18 157 8.72 22 27 26 14.01% 47.77% $250,017 $1,592 $13,890 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
Theodora S. Jacklin 12 68 5.67 1 4 6 1.47% 16.18% $55,546 $817 $4,629 0 0
Mark Doering 19 152 8 18 12 12 11.84% 27.63% $153,169 $1,008 $8,062 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
Theodora S. Jacklin 11 68 6.18 3 2 2 4.41% 10.29% $43,872 $645 $3,988 0 0
Mark Doering 13 139 10.69 14 20 12 10.07% 33.09% $173,433 $1,248 $13,341 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
Theodora S. Jacklin 11 57 5.18 3 2 3 5.26% 14.04% $44,083 $773 $4,008 0 0
Mark Doering 21 154 7.33 14 26 26 9.09% 42.86% $178,819 $1,161 $8,515 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
Theodora S. Jacklin 13 69 5.31 7 5 12 10.14% 34.78% $70,023 $1,015 $5,386 0 0
Mark Doering 12 140 11.67 21 14 22 15% 40.71% $196,991 $1,407 $16,416 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
Theodora S. Jacklin 10 66 6.6 2 1 5 3.03% 12.12% $23,086 $350 $2,309 0 0
Mark Doering 21 154 7.33 15 19 33 9.74% 43.51% $189,738 $1,232 $9,035 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
Theodora S. Jacklin 13 78 6 2 2 2 2.56% 7.69% $26,881 $345 $2,068 0 0
Mark Doering 18 108 6 13 17 11 12.04% 37.96% $175,489 $1,625 $9,749 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
Theodora S. Jacklin 16 86 5.38 1 7 4 1.16% 13.95% $22,171 $258 $1,386 0 0
Mark Doering 19 140 7.37 11 17 12 7.86% 28.57% $93,371 $667 $4,914 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
Theodora S. Jacklin 14 92 6.57 5 6 6 5.43% 18.48% $46,939 $510 $3,353 0 0
Mark Doering 16 116 7.25 14 16 15 12.07% 38.79% $111,316 $960 $6,957 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
Theodora S. Jacklin 12 94 7.83 3 7 20 3.19% 31.91% $41,383 $440 $3,449 0 0
Mark Doering 13 86 6.62 12 9 12 13.95% 38.37% $82,339 $957 $6,334 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
Theodora S. Jacklin 14 97 6.93 5 14 13 5.15% 32.99% $63,063 $650 $4,505 0 0
Mark Doering 10 78 7.8 10 10 13 12.82% 42.31% $94,539 $1,212 $9,454 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
Theodora S. Jacklin 15 87 5.8 7 10 9 8.05% 29.89% $71,022 $816 $4,735 0 0
Mark Doering 11 58 5.27 4 5 8 6.9% 29.31% $58,013 $1,000 $5,274 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
Theodora S. Jacklin 16 76 4.75 4 6 10 5.26% 26.32% $33,778 $444 $2,111 0 0
Mark Doering 14 83 5.93 13 11 12 15.66% 43.37% $129,967 $1,566 $9,283 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
Theodora S. Jacklin 18 120 6.67 4 9 13 3.33% 21.67% $33,408 $278 $1,856 0 0
Mark Doering 15 88 5.87 9 11 16 10.23% 40.91% $90,418 $1,027 $6,028 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
Theodora S. Jacklin 16 108 6.75 5 7 11 4.63% 21.3% $43,802 $406 $2,738 0 0
Mark Doering 13 84 6.46 7 8 16 8.33% 36.9% $62,657 $746 $4,820 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
Theodora S. Jacklin 16 95 5.94 7 15 13 7.37% 36.84% $83,172 $875 $5,198 0 0
Mark Doering 14 86 6.14 7 4 12 8.14% 26.74% $39,186 $456 $2,799 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
Theodora S. Jacklin 18 109 6.06 7 9 10 6.42% 23.85% $52,740 $484 $2,930 0 0
Mark Doering 20 113 5.65 15 15 18 13.27% 42.48% $93,763 $830 $4,688 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
Theodora S. Jacklin 18 97 5.39 8 7 11 8.25% 26.8% $42,171 $435 $2,343 0 0
Mark Doering 16 124 7.75 10 17 16 8.06% 34.68% $60,512 $488 $3,782 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
Theodora S. Jacklin 13 58 4.46 5 5 3 8.62% 22.41% $20,316 $350 $1,563 0 0
Mark Doering 27 147 5.44 21 18 19 14.29% 39.46% $86,721 $590 $3,212 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
Theodora S. Jacklin 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Mark Doering 19 125 6.58 15 15 12 12% 33.6% $56,715 $454 $2,985 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
Theodora S. Jacklin 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Mark Doering 17 117 6.88 14 18 17 11.97% 41.88% $60,623 $518 $3,566 0 0