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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 1 1 1 0 1 0 0% 100% $5,000 $5,000 $5,000 0 0
Donald C. Bookman 5 16 3.2 0 1 5 0% 37.5% $20,357 $1,272 $4,071 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
Donald C. Bookman 4 13 3.25 0 0 0 0% 0% $9,583 $737 $2,396 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
Donald C. Bookman 8 27 3.38 4 7 3 14.81% 51.85% $120,915 $4,478 $15,114 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
Donald C. Bookman 8 33 4.13 6 4 5 18.18% 45.45% $138,295 $4,191 $17,287 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
Donald C. Bookman 2 10 5 0 1 1 0% 20% $10,734 $1,073 $5,367 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
Donald C. Bookman 3 8 2.67 0 1 1 0% 25% $10,865 $1,358 $3,622 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
Donald C. Bookman 2 20 10 3 4 3 15% 50% $112,383 $5,619 $56,192 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
Donald C. Bookman 11 66 6 6 9 6 9.09% 31.82% $169,315 $2,565 $15,392 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
Donald C. Bookman 15 81 5.4 3 10 8 3.7% 25.93% $55,859 $690 $3,724 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
Donald C. Bookman 17 116 6.82 13 10 9 11.21% 27.59% $124,415 $1,073 $7,319 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
Donald C. Bookman 25 153 6.12 20 18 12 13.07% 32.68% $163,446 $1,068 $6,538 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
Donald C. Bookman 14 86 6.14 9 7 10 10.47% 30.23% $115,959 $1,348 $8,283 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
Gerald E. Marr 20 134 6.7 11 14 11 8.21% 26.87% $146,397 $1,093 $7,320 0 0
Donald C. Bookman 12 90 7.5 5 10 12 5.56% 30% $112,490 $1,250 $9,374 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
Donald C. Bookman 9 54 6 4 5 6 7.41% 27.78% $72,289 $1,339 $8,032 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
Donald C. Bookman 11 60 5.45 6 8 12 10% 43.33% $110,301 $1,838 $10,027 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
Donald C. Bookman 6 40 6.67 3 6 2 7.5% 27.5% $67,097 $1,677 $11,183 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 30 179 5.97 20 20 20 11.17% 33.52% $293,501 $1,640 $9,783 0 0
Donald C. Bookman 6 29 4.83 0 1 0 0% 3.45% $12,426 $428 $2,071 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
Donald C. Bookman 8 43 5.38 3 9 4 6.98% 37.21% $89,706 $2,086 $11,213 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
Donald C. Bookman 7 31 4.43 2 3 1 6.45% 19.35% $23,516 $759 $3,359 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 24 113 4.71 13 15 17 11.5% 39.82% $247,258 $2,188 $10,302 0 1
Donald C. Bookman 4 12 3 0 0 3 0% 25% $3,239 $270 $810 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
Donald C. Bookman 17 73 4.29 8 9 7 10.96% 32.88% $54,983 $753 $3,234 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
Donald C. Bookman 16 94 5.88 19 11 15 20.21% 47.87% $103,359 $1,100 $6,460 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
Donald C. Bookman 6 12 2 1 3 1 8.33% 41.67% $8,826 $736 $1,471 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 18 135 7.5 18 23 20 13.33% 45.19% $90,417 $670 $5,023 0 0
Donald C. Bookman 7 39 5.57 4 4 4 10.26% 30.77% $14,234 $365 $2,033 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
Gerald E. Marr 17 162 9.53 21 20 28 12.96% 42.59% $59,687 $368 $3,511 0 0
Donald C. Bookman 12 81 6.75 8 13 11 9.88% 39.51% $64,088 $791 $5,341 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
Gerald E. Marr 26 149 5.73 13 19 14 8.72% 30.87% $32,821 $220 $1,262 0 0
Donald C. Bookman 13 74 5.69 9 10 11 12.16% 40.54% $42,159 $570 $3,243 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
Gerald E. Marr 29 240 8.28 26 27 32 10.83% 35.42% $65,189 $272 $2,248 0 0
Donald C. Bookman 17 104 6.12 7 9 12 6.73% 26.92% $46,749 $450 $2,750 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
Donald C. Bookman 2 2 1 0 0 0 0% 0% $74 $37 $37 0 0