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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
Ellen L. Jackson 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Marcial Mercado 4 23 5.75 0 6 3 0% 39.13% $10,712 $466 $2,678 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
Ellen L. Jackson 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Marcial Mercado 6 38 6.33 1 2 3 2.63% 15.79% $13,460 $354 $2,243 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
Ellen L. Jackson 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Marcial Mercado 4 27 6.75 2 4 4 7.41% 37.04% $17,180 $636 $4,295 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
Ellen L. Jackson 27 92 3.41 10 10 20 10.87% 43.48% $272,304 $2,960 $10,085 0 0
Marcial Mercado 11 40 3.64 2 2 4 5% 20% $19,320 $483 $1,756 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
Ellen L. Jackson 29 123 4.24 24 16 17 19.51% 46.34% $460,994 $3,748 $15,896 0 0
Marcial Mercado 6 45 7.5 2 4 4 4.44% 22.22% $22,376 $497 $3,729 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
Ellen L. Jackson 31 123 3.97 21 19 13 17.07% 43.09% $426,420 $3,467 $13,755 0 0
Marcial Mercado 5 34 6.8 2 2 4 5.88% 23.53% $21,974 $646 $4,395 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
Ellen L. Jackson 26 132 5.08 12 20 16 9.09% 36.36% $223,450 $1,693 $8,594 0 0
Marcial Mercado 5 36 7.2 1 6 8 2.78% 41.67% $24,908 $692 $4,982 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
Ellen L. Jackson 29 135 4.66 23 16 18 17.04% 42.22% $453,766 $3,361 $15,647 0 1
Marcial Mercado 11 85 7.73 2 11 15 2.35% 32.94% $52,902 $622 $4,809 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
Ellen L. Jackson 32 128 4 15 16 22 11.72% 41.41% $300,169 $2,345 $9,380 0 0
Marcial Mercado 12 80 6.67 3 9 14 3.75% 32.5% $62,576 $782 $5,215 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
Ellen L. Jackson 34 150 4.41 20 25 13 13.33% 38.67% $305,369 $2,036 $8,981 0 0
Marcial Mercado 8 61 7.63 6 6 1 9.84% 21.31% $40,359 $662 $5,045 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
Ellen L. Jackson 33 140 4.24 14 19 22 10% 39.29% $300,464 $2,146 $9,105 0 0
Marcial Mercado 20 116 5.8 5 11 12 4.31% 24.14% $48,096 $415 $2,405 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
Ellen L. Jackson 35 120 3.43 12 13 12 10% 30.83% $194,320 $1,619 $5,552 0 0
Marcial Mercado 15 112 7.47 3 9 17 2.68% 25.89% $39,722 $355 $2,648 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
Ellen L. Jackson 41 130 3.17 15 14 22 11.54% 39.23% $218,750 $1,683 $5,335 0 0
Marcial Mercado 9 77 8.56 8 4 8 10.39% 25.97% $36,226 $470 $4,025 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
Ellen L. Jackson 43 175 4.07 23 13 20 13.14% 32% $311,005 $1,777 $7,233 0 0
Marcial Mercado 15 106 7.07 12 10 10 11.32% 30.19% $62,048 $585 $4,137 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
Ellen L. Jackson 39 181 4.64 17 33 16 9.39% 36.46% $391,833 $2,165 $10,047 0 0
Marcial Mercado 16 134 8.38 7 18 9 5.22% 25.37% $62,812 $469 $3,926 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
Ellen L. Jackson 41 158 3.85 13 20 22 8.23% 34.81% $327,941 $2,076 $7,999 0 0
Marcial Mercado 19 147 7.74 11 19 16 7.48% 31.29% $78,462 $534 $4,130 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
Ellen L. Jackson 38 186 4.89 17 17 24 9.14% 31.18% $304,555 $1,637 $8,015 0 0
Marcial Mercado 12 39 3.25 2 2 2 5.13% 15.38% $13,223 $339 $1,102 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
Ellen L. Jackson 45 227 5.04 19 23 34 8.37% 33.48% $279,519 $1,231 $6,212 0 0
Marcial Mercado 9 44 4.89 4 7 4 9.09% 34.09% $43,493 $988 $4,833 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
Ellen L. Jackson 34 187 5.5 12 18 30 6.42% 32.09% $213,644 $1,142 $6,284 0 0
Marcial Mercado 13 63 4.85 2 7 5 3.17% 22.22% $32,600 $517 $2,508 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
Ellen L. Jackson 38 134 3.53 7 14 5 5.22% 19.4% $183,197 $1,367 $4,821 0 0
Marcial Mercado 12 48 4 3 5 9 6.25% 35.42% $29,294 $610 $2,441 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
Ellen L. Jackson 33 127 3.85 12 17 12 9.45% 32.28% $193,434 $1,523 $5,862 0 0
Marcial Mercado 2 5 2.5 0 1 1 0% 40% $3,337 $667 $1,669 0 0