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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
Joseph W. Mazza 9 25 2.78 1 2 2 4% 20% $40,525 $1,621 $4,503 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
Joseph W. Mazza 7 29 4.14 5 2 3 17.24% 34.48% $155,735 $5,370 $22,248 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
Joseph W. Mazza 6 32 5.33 0 5 2 0% 21.88% $65,392 $2,044 $10,899 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
Joseph W. Mazza 9 46 5.11 2 8 5 4.35% 32.61% $128,610 $2,796 $14,290 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
Joseph W. Mazza 19 70 3.68 1 3 11 1.43% 21.43% $122,551 $1,751 $6,450 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
Joseph W. Mazza 23 95 4.13 6 6 15 6.32% 28.42% $171,955 $1,810 $7,476 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
Joseph W. Mazza 28 164 5.86 7 14 22 4.27% 26.22% $169,806 $1,035 $6,065 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
Joseph W. Mazza 20 138 6.9 10 14 8 7.25% 23.19% $211,984 $1,536 $10,599 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
Joseph W. Mazza 9 53 5.89 4 2 8 7.55% 26.42% $77,880 $1,469 $8,653 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
Joseph W. Mazza 8 32 4 1 1 1 3.13% 9.38% $41,607 $1,300 $5,201 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
Joseph W. Mazza 14 76 5.43 8 8 7 10.53% 30.26% $326,508 $4,296 $23,322 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
Joseph W. Mazza 18 82 4.56 4 7 11 4.88% 26.83% $206,671 $2,520 $11,482 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
Joseph W. Mazza 14 105 7.5 10 5 11 9.52% 24.76% $339,250 $3,231 $24,232 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
Joseph W. Mazza 15 58 3.87 3 5 5 5.17% 22.41% $151,383 $2,610 $10,092 0 0