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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
Terry J. Brennan 4 8 2 0 1 0 0% 12.5% $9,174 $1,147 $2,294 0 0
Dalton Dieter 1 1 1 0 0 0 0% 0% $288 $288 $288 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
Terry J. Brennan 7 17 2.43 1 3 1 5.88% 29.41% $58,981 $3,469 $8,426 0 0
Dalton Dieter 12 45 3.75 5 4 7 11.11% 35.56% $49,927 $1,109 $4,161 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
Terry J. Brennan 13 46 3.54 2 3 4 4.35% 19.57% $161,673 $3,515 $12,436 0 0
Dalton Dieter 27 128 4.74 20 16 22 15.63% 45.31% $220,451 $1,722 $8,165 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
Terry J. Brennan 13 40 3.08 3 2 7 7.5% 30% $242,264 $6,057 $18,636 0 0
Dalton Dieter 28 154 5.5 22 19 26 14.29% 43.51% $255,765 $1,661 $9,134 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
Terry J. Brennan 13 38 2.92 1 5 3 2.63% 23.68% $166,309 $4,377 $12,793 0 0
Dalton Dieter 25 103 4.12 8 16 22 7.77% 44.66% $97,578 $947 $3,903 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
Terry J. Brennan 6 33 5.5 1 4 5 3.03% 30.3% $108,659 $3,293 $18,110 0 0
Dalton Dieter 26 125 4.81 7 20 17 5.6% 35.2% $154,542 $1,236 $5,944 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
Terry J. Brennan 5 19 3.8 2 2 3 10.53% 36.84% $83,310 $4,385 $16,662 0 0
Dalton Dieter 23 105 4.57 8 16 14 7.62% 36.19% $118,520 $1,129 $5,153 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
Terry J. Brennan 5 7 1.4 0 1 0 0% 14.29% $20,033 $2,862 $4,007 0 0
Dalton Dieter 20 94 4.7 10 12 10 10.64% 34.04% $128,524 $1,367 $6,426 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
Terry J. Brennan 3 10 3.33 0 1 1 0% 20% $20,053 $2,005 $6,684 0 0
Dalton Dieter 22 62 2.82 6 6 8 9.68% 32.26% $44,651 $720 $2,030 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
Terry J. Brennan 6 17 2.83 0 1 0 0% 5.88% $7,942 $467 $1,324 0 0
Dalton Dieter 9 53 5.89 1 9 10 1.89% 37.74% $26,447 $499 $2,939 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
Terry J. Brennan 6 16 2.67 0 0 4 0% 25% $6,863 $429 $1,144 0 0
Dalton Dieter 2 2 1 0 0 1 0% 50% $880 $440 $440 0 0