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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
Steve Koler 3 11 3.67 0 1 0 0% 9.09% $3,775 $343 $1,258 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 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Steve Koler 4 15 3.75 1 1 2 6.67% 26.67% $15,164 $1,011 $3,791 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
Steve Koler 3 13 4.33 0 0 3 0% 23.08% $9,756 $750 $3,252 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
Steve Koler 3 17 5.67 1 1 2 5.88% 23.53% $14,361 $845 $4,787 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
Steve Koler 5 22 4.4 2 1 3 9.09% 27.27% $27,272 $1,240 $5,454 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
Steve Koler 6 44 7.33 2 5 3 4.55% 22.73% $36,748 $835 $6,125 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
Steve Koler 4 15 3.75 1 1 0 6.67% 13.33% $9,072 $605 $2,268 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
Steve Koler 5 18 3.6 2 1 1 11.11% 22.22% $13,671 $760 $2,734 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
Steve Koler 10 32 3.2 0 1 4 0% 15.63% $10,030 $313 $1,003 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
Steve Koler 18 90 5 4 7 9 4.44% 22.22% $53,402 $593 $2,967 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
Steve Koler 15 93 6.2 9 14 19 9.68% 45.16% $94,468 $1,016 $6,298 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
Steve Koler 16 86 5.38 9 23 16 10.47% 55.81% $121,345 $1,411 $7,584 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
Steve Koler 16 87 5.44 8 9 11 9.2% 32.18% $71,660 $824 $4,479 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
Steve Koler 17 82 4.82 9 6 8 10.98% 28.05% $80,349 $980 $4,726 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
Steve Koler 19 92 4.84 10 10 14 10.87% 36.96% $80,855 $879 $4,256 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 20 134 6.7 11 14 11 8.21% 26.87% $146,397 $1,093 $7,320 0 0
Steve Koler 17 65 3.82 7 8 13 10.77% 43.08% $44,102 $678 $2,594 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
Steve Koler 14 63 4.5 3 2 14 4.76% 30.16% $32,238 $512 $2,303 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
Steve Koler 13 76 5.85 5 9 7 6.58% 27.63% $41,872 $551 $3,221 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
Steve Koler 11 71 6.45 5 5 8 7.04% 25.35% $37,191 $524 $3,381 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 30 179 5.97 20 20 20 11.17% 33.52% $293,501 $1,640 $9,783 0 0
Steve Koler 19 98 5.16 6 6 14 6.12% 26.53% $76,721 $783 $4,038 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
Steve Koler 14 99 7.07 8 14 8 8.08% 30.3% $115,317 $1,165 $8,237 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
Steve Koler 10 47 4.7 3 6 8 6.38% 36.17% $37,222 $792 $3,722 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
Steve Koler 7 49 7 7 5 9 14.29% 42.86% $41,066 $838 $5,867 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 27 110 4.07 8 9 12 7.27% 26.36% $137,475 $1,250 $5,092 0 0
Steve Koler 9 34 3.78 1 4 5 2.94% 29.41% $15,334 $451 $1,704 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 22 154 7 15 12 16 9.74% 27.92% $144,482 $938 $6,567 0 0
Steve Koler 2 10 5 1 2 0 10% 30% $5,180 $518 $2,590 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
Steve Koler 4 7 1.75 0 0 0 0% 0% $137 $20 $34 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
Steve Koler 9 29 3.22 1 1 1 3.45% 10.34% $4,630 $160 $514 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
Steve Koler 8 45 5.63 7 8 6 15.56% 46.67% $29,302 $651 $3,663 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
Steve Koler 6 42 7 2 7 7 4.76% 38.1% $12,379 $295 $2,063 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
Steve Koler 9 41 4.56 5 8 3 12.2% 39.02% $17,576 $429 $1,953 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 14 87 6.21 12 9 12 13.79% 37.93% $55,444 $637 $3,960 0 0
Steve Koler 3 6 2 0 0 0 0% 0% $1,149 $192 $383 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
Steve Koler 10 32 3.2 1 3 2 3.13% 18.75% $3,295 $103 $330 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
Steve Koler 8 27 3.38 1 1 1 3.7% 11.11% $9,710 $360 $1,214 0 0