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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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 1 4 4 1 0 1 25% 50% $12,610 $3,153 $12,610 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 8 35 4.38 3 0 2 8.57% 14.29% $31,340 $895 $3,918 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 14 74 5.29 6 7 13 8.11% 35.14% $143,843 $1,944 $10,275 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 8 24 3 2 2 4 8.33% 33.33% $28,002 $1,167 $3,500 0 0
Debbie O'Brien 11 55 5 10 5 9 18.18% 43.64% $118,719 $2,159 $10,793 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 7 22 3.14 1 0 0 4.55% 4.55% $24,169 $1,099 $3,453 0 0
Debbie O'Brien 8 30 3.75 10 5 5 33.33% 66.67% $73,420 $2,447 $9,178 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 15 45 3 3 2 6 6.67% 24.44% $33,462 $744 $2,231 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 17 51 3 12 2 7 23.53% 41.18% $92,297 $1,810 $5,429 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 13 45 3.46 7 7 6 15.56% 44.44% $78,292 $1,740 $6,022 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 11 46 4.18 8 5 5 17.39% 39.13% $64,131 $1,394 $5,830 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 14 34 2.43 3 8 6 8.82% 50% $35,601 $1,047 $2,543 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 8 36 4.5 2 4 9 5.56% 41.67% $20,846 $579 $2,606 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 5 5 1 1 0 20% 40% $7,197 $1,439 $7,197 0 0
Debbie O'Brien 12 34 2.83 4 8 3 11.76% 44.12% $34,856 $1,025 $2,905 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 2 10 5 0 2 1 0% 30% $3,432 $343 $1,716 0 0
Debbie O'Brien 16 72 4.5 6 10 8 8.33% 33.33% $47,349 $658 $2,959 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 4 17 4.25 2 0 0 11.76% 11.76% $8,023 $472 $2,006 0 0
Debbie O'Brien 16 85 5.31 10 17 12 11.76% 45.88% $83,994 $988 $5,250 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 6 40 6.67 0 2 3 0% 12.5% $7,743 $194 $1,291 0 0
Debbie O'Brien 9 46 5.11 3 6 7 6.52% 34.78% $40,224 $874 $4,469 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 7 56 8 1 4 4 1.79% 16.07% $18,445 $329 $2,635 0 0
Debbie O'Brien 10 53 5.3 4 8 9 7.55% 39.62% $56,318 $1,063 $5,632 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 6 51 8.5 3 7 4 5.88% 27.45% $34,762 $682 $5,794 0 0
Debbie O'Brien 25 148 5.92 27 23 20 18.24% 47.3% $207,417 $1,401 $8,297 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 4 42 10.5 4 3 6 9.52% 30.95% $27,898 $664 $6,975 0 0
Debbie O'Brien 44 152 3.45 19 20 25 12.5% 42.11% $144,788 $953 $3,291 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 9 51 5.67 0 3 3 0% 11.76% $13,870 $272 $1,541 0 0
Debbie O'Brien 27 122 4.52 23 13 13 18.85% 40.16% $173,803 $1,425 $6,437 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 7 72 10.29 5 5 6 6.94% 22.22% $37,367 $519 $5,338 0 0
Debbie O'Brien 11 62 5.64 10 6 8 16.13% 38.71% $63,760 $1,028 $5,796 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 13 96 7.38 5 19 8 5.21% 33.33% $53,275 $555 $4,098 0 0
Debbie O'Brien 11 40 3.64 6 7 4 15% 42.5% $38,178 $954 $3,471 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 5 8 1.6 1 1 0 12.5% 25% $10,159 $1,270 $2,032 0 0
Debbie O'Brien 6 24 4 3 1 0 12.5% 16.67% $17,064 $711 $2,844 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 2 5 2.5 0 0 0 0% 0% $2,259 $452 $1,130 0 0
Debbie O'Brien 5 40 8 3 3 8 7.5% 35% $17,049 $426 $3,410 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 6 6 1 2 0 16.67% 50% $9,248 $1,541 $9,248 0 0
Debbie O'Brien 7 31 4.43 0 2 4 0% 19.35% $12,618 $407 $1,803 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 2 5 2.5 1 0 0 20% 20% $4,458 $892 $2,229 0 0
Debbie O'Brien 11 73 6.64 9 12 13 12.33% 46.58% $66,828 $915 $6,075 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 9 9 0 0 1 0% 11.11% $1,597 $177 $1,597 0 0
Debbie O'Brien 9 56 6.22 12 6 11 21.43% 51.79% $47,732 $852 $5,304 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 7 24 3.43 3 1 5 12.5% 37.5% $16,524 $689 $2,361 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 6 64 10.67 6 9 8 9.38% 35.94% $27,546 $430 $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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 4 20 5 2 3 2 10% 35% $9,130 $457 $2,283 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 4 21 5.25 4 2 2 19.05% 38.1% $15,924 $758 $3,981 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 5 38 7.6 3 6 6 7.89% 39.47% $19,730 $519 $3,946 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
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Charles D. Zehnder 1 5 5 0 0 0 0% 0% $0 $0 $0 0 0
Debbie O'Brien 4 20 5 2 2 6 10% 50% $8,828 $441 $2,207 0 0