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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
Gordon C. Colbourne 7 17 2.43 3 2 2 17.65% 41.18% $79,980 $4,705 $11,426 0 0
Mark Passley 5 20 4 1 2 3 5% 30% $49,325 $2,466 $9,865 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
Gordon C. Colbourne 8 45 5.63 2 2 8 4.44% 26.67% $164,814 $3,663 $20,602 0 0
Mark Passley 13 49 3.77 7 3 6 14.29% 32.65% $181,945 $3,713 $13,996 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
Gordon C. Colbourne 9 40 4.44 5 3 7 12.5% 37.5% $167,839 $4,196 $18,649 0 0
Mark Passley 6 30 5 2 3 3 6.67% 26.67% $58,140 $1,938 $9,690 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
Gordon C. Colbourne 9 43 4.78 3 7 5 6.98% 34.88% $122,648 $2,852 $13,628 0 0
Mark Passley 3 20 6.67 2 0 3 10% 25% $37,550 $1,878 $12,517 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
Gordon C. Colbourne 9 50 5.56 6 3 8 12% 34% $183,060 $3,661 $20,340 0 0
Mark Passley 10 24 2.4 2 2 2 8.33% 25% $44,530 $1,855 $4,453 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
Gordon C. Colbourne 11 56 5.09 3 3 5 5.36% 19.64% $109,059 $1,947 $9,914 0 0
Mark Passley 8 33 4.13 6 8 7 18.18% 63.64% $181,320 $5,495 $22,665 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
Gordon C. Colbourne 12 60 5 2 4 5 3.33% 18.33% $88,564 $1,476 $7,380 0 0
Mark Passley 12 39 3.25 3 4 1 7.69% 20.51% $56,530 $1,449 $4,711 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
Gordon C. Colbourne 8 43 5.38 6 5 4 13.95% 34.88% $241,849 $5,624 $30,231 0 0
Mark Passley 9 36 4 1 1 3 2.78% 13.89% $28,913 $803 $3,213 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
Gordon C. Colbourne 14 55 3.93 1 3 6 1.82% 18.18% $111,210 $2,022 $7,944 0 0
Mark Passley 10 45 4.5 2 4 6 4.44% 26.67% $83,403 $1,853 $8,340 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
Gordon C. Colbourne 13 61 4.69 6 4 2 9.84% 19.67% $232,622 $3,813 $17,894 0 0
Mark Passley 5 16 3.2 1 0 2 6.25% 18.75% $21,620 $1,351 $4,324 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
Gordon C. Colbourne 11 53 4.82 4 4 3 7.55% 20.75% $106,061 $2,001 $9,642 0 0
Mark Passley 7 36 5.14 3 8 2 8.33% 36.11% $65,240 $1,812 $9,320 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
Gordon C. Colbourne 13 66 5.08 2 6 8 3.03% 24.24% $105,307 $1,596 $8,101 0 0
Mark Passley 5 10 2 1 2 0 10% 30% $13,400 $1,340 $2,680 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
Gordon C. Colbourne 13 86 6.62 9 11 8 10.47% 32.56% $276,998 $3,221 $21,308 0 0
Mark Passley 16 76 4.75 5 8 10 6.58% 30.26% $81,715 $1,075 $5,107 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
Gordon C. Colbourne 10 51 5.1 2 4 3 3.92% 17.65% $104,750 $2,054 $10,475 0 0
Mark Passley 16 64 4 5 6 12 7.81% 35.94% $85,451 $1,335 $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
Gordon C. Colbourne 11 51 4.64 4 1 7 7.84% 23.53% $103,241 $2,024 $9,386 0 0
Mark Passley 14 79 5.64 18 16 9 22.78% 54.43% $194,998 $2,468 $13,928 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
Gordon C. Colbourne 6 36 6 3 3 3 8.33% 25% $109,259 $3,035 $18,210 0 0
Mark Passley 25 114 4.56 14 19 15 12.28% 42.11% $270,417 $2,372 $10,817 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
Gordon C. Colbourne 10 52 5.2 4 6 2 7.69% 23.08% $131,525 $2,529 $13,153 0 0
Mark Passley 20 91 4.55 16 3 13 17.58% 35.16% $223,462 $2,456 $11,173 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
Gordon C. Colbourne 12 57 4.75 2 2 7 3.51% 19.3% $97,898 $1,718 $8,158 0 0
Mark Passley 24 121 5.04 6 11 17 4.96% 28.1% $115,697 $956 $4,821 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
Gordon C. Colbourne 9 45 5 1 2 4 2.22% 15.56% $59,334 $1,319 $6,593 0 0
Mark Passley 14 86 6.14 11 10 14 12.79% 40.7% $115,740 $1,346 $8,267 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
Gordon C. Colbourne 8 47 5.88 1 4 7 2.13% 25.53% $86,280 $1,836 $10,785 0 0
Mark Passley 16 65 4.06 9 8 8 13.85% 38.46% $116,618 $1,794 $7,289 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
Gordon C. Colbourne 13 58 4.46 2 5 4 3.45% 18.97% $152,865 $2,636 $11,759 0 0
Mark Passley 17 73 4.29 7 7 6 9.59% 27.4% $126,425 $1,732 $7,437 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
Gordon C. Colbourne 13 52 4 0 7 3 0% 19.23% $89,493 $1,721 $6,884 0 0
Mark Passley 21 100 4.76 12 9 15 12% 36% $143,849 $1,438 $6,850 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
Gordon C. Colbourne 12 82 6.83 8 9 5 9.76% 26.83% $278,261 $3,393 $23,188 0 0
Mark Passley 17 104 6.12 11 13 16 10.58% 38.46% $100,177 $963 $5,893 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
Gordon C. Colbourne 14 55 3.93 2 6 10 3.64% 32.73% $209,097 $3,802 $14,936 0 0
Mark Passley 17 90 5.29 13 15 13 14.44% 45.56% $78,046 $867 $4,591 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
Gordon C. Colbourne 11 50 4.55 3 5 9 6% 34% $203,345 $4,067 $18,486 0 0
Mark Passley 11 41 3.73 8 6 5 19.51% 46.34% $52,553 $1,282 $4,778 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
Gordon C. Colbourne 9 35 3.89 1 4 2 2.86% 20% $84,761 $2,422 $9,418 0 0
Mark Passley 9 37 4.11 2 2 3 5.41% 18.92% $26,749 $723 $2,972 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
Gordon C. Colbourne 8 22 2.75 1 4 2 4.55% 31.82% $98,658 $4,484 $12,332 0 0
Mark Passley 10 39 3.9 3 5 4 7.69% 30.77% $39,082 $1,002 $3,908 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
Gordon C. Colbourne 6 21 3.5 0 1 1 0% 9.52% $14,714 $701 $2,452 0 0
Mark Passley 12 33 2.75 7 5 4 21.21% 48.48% $117,500 $3,561 $9,792 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
Gordon C. Colbourne 5 18 3.6 1 2 1 5.56% 22.22% $14,577 $810 $2,915 0 0
Mark Passley 10 50 5 8 6 1 16% 30% $88,473 $1,769 $8,847 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
Gordon C. Colbourne 11 73 6.64 2 4 6 2.74% 16.44% $17,086 $234 $1,553 0 0
Mark Passley 8 23 2.88 2 2 4 8.7% 34.78% $30,743 $1,337 $3,843 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
Gordon C. Colbourne 14 55 3.93 7 3 4 12.73% 25.45% $42,818 $779 $3,058 0 0
Mark Passley 4 16 4 2 1 1 12.5% 25% $11,462 $716 $2,866 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
Gordon C. Colbourne 16 94 5.88 6 10 10 6.38% 27.66% $114,371 $1,217 $7,148 0 1
Mark Passley 3 7 2.33 0 1 1 0% 28.57% $2,930 $419 $977 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
Gordon C. Colbourne 17 90 5.29 5 6 13 5.56% 26.67% $156,963 $1,744 $9,233 0 1
Mark Passley 1 3 3 0 0 0 0% 0% $490 $163 $490 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
Gordon C. Colbourne 13 91 7 3 12 6 3.3% 23.08% $197,745 $2,173 $15,211 1 1
Mark Passley 4 22 5.5 0 0 0 0% 0% $2,633 $120 $658 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
Gordon C. Colbourne 17 101 5.94 12 6 9 11.88% 26.73% $233,812 $2,315 $13,754 1 1
Mark Passley 8 33 4.13 2 3 3 6.06% 24.24% $26,100 $791 $3,263 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
Gordon C. Colbourne 15 99 6.6 12 15 8 12.12% 35.35% $80,783 $816 $5,386 0 0
Mark Passley 1 1 1 0 0 0 0% 0% $55 $55 $55 0 0