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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
Gerald E. Marr 2 3 1.5 0 0 0 0% 0% $2,545 $848 $1,273 0 0
Donna Bireta 4 10 2.5 0 1 1 0% 20% $10,327 $1,033 $2,582 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
Gerald E. Marr 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donna Bireta 6 52 8.67 4 2 6 7.69% 23.08% $105,323 $2,025 $17,554 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
Gerald E. Marr 1 1 1 0 1 0 0% 100% $5,000 $5,000 $5,000 0 0
Donna Bireta 11 58 5.27 4 7 12 6.9% 39.66% $111,458 $1,922 $10,133 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
Gerald E. Marr 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donna Bireta 9 82 9.11 5 9 6 6.1% 24.39% $117,153 $1,429 $13,017 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
Gerald E. Marr 1 1 1 0 0 0 0% 0% $348 $348 $348 0 0
Donna Bireta 12 78 6.5 5 11 11 6.41% 34.62% $123,074 $1,578 $10,256 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
Gerald E. Marr 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donna Bireta 13 100 7.69 10 24 17 10% 51% $247,312 $2,473 $19,024 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
Gerald E. Marr 8 18 2.25 1 2 3 5.56% 33.33% $17,975 $999 $2,247 0 0
Donna Bireta 17 67 3.94 2 6 10 2.99% 26.87% $51,947 $775 $3,056 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
Gerald E. Marr 21 132 6.29 4 9 12 3.03% 18.94% $162,694 $1,233 $7,747 0 0
Donna Bireta 22 148 6.73 9 23 20 6.08% 35.14% $160,930 $1,087 $7,315 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
Gerald E. Marr 20 144 7.2 11 13 13 7.64% 25.69% $150,151 $1,043 $7,508 0 0
Donna Bireta 29 216 7.45 14 20 31 6.48% 30.09% $199,110 $922 $6,866 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
Gerald E. Marr 20 133 6.65 15 11 17 11.28% 32.33% $176,132 $1,324 $8,807 0 0
Donna Bireta 30 202 6.73 18 29 20 8.91% 33.17% $225,682 $1,117 $7,523 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
Gerald E. Marr 21 135 6.43 13 21 18 9.63% 38.52% $207,464 $1,537 $9,879 0 0
Donna Bireta 31 252 8.13 16 24 37 6.35% 30.56% $258,751 $1,027 $8,347 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
Gerald E. Marr 23 144 6.26 10 18 20 6.94% 33.33% $195,176 $1,355 $8,486 0 0
Donna Bireta 34 260 7.65 24 26 33 9.23% 31.92% $281,642 $1,083 $8,284 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
Gerald E. Marr 31 167 5.39 12 18 18 7.19% 28.74% $229,047 $1,372 $7,389 0 0
Donna Bireta 21 188 8.95 23 22 28 12.23% 38.83% $255,047 $1,357 $12,145 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
Gerald E. Marr 29 156 5.38 7 12 18 4.49% 23.72% $150,909 $967 $5,204 0 0
Donna Bireta 37 248 6.7 32 27 35 12.9% 37.9% $353,112 $1,424 $9,544 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
Gerald E. Marr 26 161 6.19 16 19 15 9.94% 31.06% $292,628 $1,818 $11,255 0 1
Donna Bireta 33 222 6.73 20 23 29 9.01% 32.43% $234,272 $1,055 $7,099 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
Gerald E. Marr 20 134 6.7 11 14 11 8.21% 26.87% $146,397 $1,093 $7,320 0 0
Donna Bireta 32 210 6.56 20 18 23 9.52% 29.05% $239,430 $1,140 $7,482 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
Gerald E. Marr 21 127 6.05 10 8 12 7.87% 23.62% $119,393 $940 $5,685 0 0
Donna Bireta 33 183 5.55 18 25 22 9.84% 35.52% $239,526 $1,309 $7,258 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
Gerald E. Marr 30 164 5.47 12 12 14 7.32% 23.17% $168,032 $1,025 $5,601 0 0
Donna Bireta 38 260 6.84 24 32 27 9.23% 31.92% $336,926 $1,296 $8,866 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
Gerald E. Marr 30 195 6.5 15 18 17 7.69% 25.64% $285,408 $1,464 $9,514 0 0
Donna Bireta 51 256 5.02 26 32 45 10.16% 40.23% $379,217 $1,481 $7,436 0 1

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
Gerald E. Marr 30 179 5.97 20 20 20 11.17% 33.52% $293,501 $1,640 $9,783 0 0
Donna Bireta 46 232 5.04 30 34 25 12.93% 38.36% $381,813 $1,646 $8,300 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
Gerald E. Marr 29 112 3.86 12 8 14 10.71% 30.36% $199,900 $1,785 $6,893 0 0
Donna Bireta 27 191 7.07 17 17 35 8.9% 36.13% $251,299 $1,316 $9,307 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
Gerald E. Marr 29 150 5.17 14 20 21 9.33% 36.67% $312,652 $2,084 $10,781 0 1
Donna Bireta 29 214 7.38 18 14 26 8.41% 27.1% $258,618 $1,208 $8,918 0 1

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
Gerald E. Marr 24 113 4.71 13 15 17 11.5% 39.82% $247,258 $2,188 $10,302 0 1
Donna Bireta 35 223 6.37 27 18 38 12.11% 37.22% $553,363 $2,481 $15,810 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
Gerald E. Marr 27 110 4.07 8 9 12 7.27% 26.36% $137,475 $1,250 $5,092 0 0
Donna Bireta 16 133 8.31 22 20 18 16.54% 45.11% $333,218 $2,505 $20,826 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
Gerald E. Marr 22 154 7 15 12 16 9.74% 27.92% $144,482 $938 $6,567 0 0
Donna Bireta 13 95 7.31 13 11 16 13.68% 42.11% $120,579 $1,269 $9,275 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
Gerald E. Marr 25 146 5.84 16 18 13 10.96% 32.19% $148,696 $1,018 $5,948 0 0
Donna Bireta 9 108 12 17 12 19 15.74% 44.44% $122,720 $1,136 $13,636 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
Gerald E. Marr 25 107 4.28 8 11 17 7.48% 33.64% $100,099 $936 $4,004 0 0
Donna Bireta 8 81 10.13 13 12 9 16.05% 41.98% $102,024 $1,260 $12,753 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
Gerald E. Marr 20 84 4.2 11 10 8 13.1% 34.52% $57,394 $683 $2,870 0 0
Donna Bireta 8 109 13.63 9 13 15 8.26% 33.94% $74,775 $686 $9,347 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
Gerald E. Marr 15 79 5.27 9 7 10 11.39% 32.91% $28,684 $363 $1,912 0 0
Donna Bireta 7 73 10.43 4 8 13 5.48% 34.25% $49,406 $677 $7,058 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
Gerald E. Marr 17 84 4.94 7 11 12 8.33% 35.71% $64,873 $772 $3,816 0 1
Donna Bireta 2 12 6 6 3 1 50% 83.33% $20,761 $1,730 $10,381 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
Gerald E. Marr 17 162 9.53 21 20 28 12.96% 42.59% $59,687 $368 $3,511 0 0
Donna Bireta 1 2 2 1 0 0 50% 50% $1,860 $930 $1,860 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
Gerald E. Marr 26 149 5.73 13 19 14 8.72% 30.87% $32,821 $220 $1,262 0 0
Donna Bireta 3 18 6 4 4 2 22.22% 55.56% $13,133 $730 $4,378 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
Gerald E. Marr 29 255 8.79 35 36 30 13.73% 39.61% $97,400 $382 $3,359 0 0
Donna Bireta 12 84 7 7 11 13 8.33% 36.9% $64,836 $772 $5,403 0 0