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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 $22,028
Michael G. Atkins 5 5 1 1 1 0 20% 40% $28,214 $5,643 $5,643 0 0
Carl J. O'Callaghan 1 1 1 0 1 0 0% 100% $4,860 $4,860 $4,860 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 $22,028
Michael G. Atkins 12 117 9.75 11 12 11 9.4% 29.06% $270,933 $2,316 $22,578 0 0
Carl J. O'Callaghan 19 54 2.84 3 11 5 5.56% 35.19% $103,901 $1,924 $5,468 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 $22,028
Michael G. Atkins 15 124 8.27 12 10 14 9.68% 29.03% $282,703 $2,280 $18,847 0 0
Carl J. O'Callaghan 53 176 3.32 11 19 25 6.25% 31.25% $293,434 $1,667 $5,536 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 $22,028
Michael G. Atkins 13 92 7.08 6 5 11 6.52% 23.91% $175,978 $1,913 $13,537 0 0
Carl J. O'Callaghan 37 111 3 23 21 15 20.72% 53.15% $424,162 $3,821 $11,464 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 $22,028
Michael G. Atkins 11 72 6.55 6 8 6 8.33% 27.78% $147,481 $2,048 $13,407 0 0
Carl J. O'Callaghan 35 95 2.71 13 15 18 13.68% 48.42% $273,934 $2,884 $7,827 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 $22,028
Michael G. Atkins 11 91 8.27 12 8 7 13.19% 29.67% $215,226 $2,365 $19,566 0 0
Carl J. O'Callaghan 14 56 4 8 10 7 14.29% 44.64% $161,060 $2,876 $11,504 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 $22,028
Michael G. Atkins 11 76 6.91 4 9 8 5.26% 27.63% $85,364 $1,123 $7,760 0 0
Carl J. O'Callaghan 9 18 2 2 1 1 11.11% 22.22% $30,736 $1,708 $3,415 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 $22,028
Michael G. Atkins 10 98 9.8 6 11 14 6.12% 31.63% $133,007 $1,357 $13,301 0 0
Carl J. O'Callaghan 12 21 1.75 1 2 3 4.76% 28.57% $33,543 $1,597 $2,795 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 $22,028
Michael G. Atkins 14 89 6.36 4 5 5 4.49% 15.73% $64,899 $729 $4,636 0 0
Carl J. O'Callaghan 26 138 5.31 10 14 16 7.25% 28.99% $136,575 $990 $5,253 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 $22,028
Michael G. Atkins 12 106 8.83 4 3 12 3.77% 17.92% $96,822 $913 $8,069 0 0
Carl J. O'Callaghan 35 193 5.51 24 33 22 12.44% 40.93% $374,381 $1,940 $10,697 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 $22,028
Michael G. Atkins 18 119 6.61 12 7 9 10.08% 23.53% $217,146 $1,825 $12,064 0 0
Carl J. O'Callaghan 30 90 3 9 9 10 10% 31.11% $191,918 $2,132 $6,397 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 $22,028
Michael G. Atkins 21 127 6.05 4 6 10 3.15% 15.75% $114,571 $902 $5,456 0 0
Carl J. O'Callaghan 30 107 3.57 11 10 17 10.28% 35.51% $227,144 $2,123 $7,571 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 $22,028
Michael G. Atkins 20 141 7.05 4 7 10 2.84% 14.89% $89,634 $636 $4,482 0 0
Carl J. O'Callaghan 21 63 3 8 5 13 12.7% 41.27% $290,598 $4,613 $13,838 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 $22,028
Michael G. Atkins 19 153 8.05 8 10 16 5.23% 22.22% $139,813 $914 $7,359 0 0
Carl J. O'Callaghan 22 66 3 7 3 6 10.61% 24.24% $189,879 $2,877 $8,631 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 $22,028
Michael G. Atkins 23 143 6.22 9 11 12 6.29% 22.38% $151,585 $1,060 $6,591 0 0
Carl J. O'Callaghan 23 65 2.83 6 4 2 9.23% 18.46% $1,463,658 $22,518 $63,637 2 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 $22,028
Michael G. Atkins 23 178 7.74 7 13 14 3.93% 19.1% $180,481 $1,014 $7,847 0 0
Carl J. O'Callaghan 17 62 3.65 5 7 8 8.06% 32.26% $177,855 $2,869 $10,462 1 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 $22,028
Michael G. Atkins 28 131 4.68 6 11 12 4.58% 22.14% $169,363 $1,293 $6,049 0 0
Carl J. O'Callaghan 3 4 1.33 0 0 0 0% 0% $1,350 $338 $450 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 $22,028
Michael G. Atkins 18 85 4.72 6 6 7 7.06% 22.35% $83,444 $982 $4,636 0 0
Carl J. O'Callaghan 10 25 2.5 1 1 2 4% 16% $45,026 $1,801 $4,503 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 $22,028
Michael G. Atkins 11 72 6.55 8 6 8 11.11% 30.56% $50,037 $695 $4,549 0 0
Carl J. O'Callaghan 4 12 3 0 1 1 0% 16.67% $3,325 $277 $831 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 $22,028
Michael G. Atkins 13 105 8.08 13 17 17 12.38% 44.76% $56,887 $542 $4,376 0 0
Carl J. O'Callaghan 1 1 1 0 0 0 0% 0% $0 $0 $0 0 0