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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
Pamela A. Arnold 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robert R. O'Connor II 8 15 1.88 1 2 0 6.67% 20% $23,117 $1,541 $2,890 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
Pamela A. Arnold 20 35 1.75 7 5 5 20% 48.57% $159,827 $4,566 $7,991 0 0
Robert R. O'Connor II 14 44 3.14 2 3 4 4.55% 20.45% $154,133 $3,503 $11,010 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
Pamela A. Arnold 3 15 5 3 3 2 20% 53.33% $36,172 $2,411 $12,057 0 0
Robert R. O'Connor II 12 68 5.67 9 8 10 13.24% 39.71% $252,181 $3,709 $21,015 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
Pamela A. Arnold 7 22 3.14 1 1 2 4.55% 18.18% $20,253 $921 $2,893 0 0
Robert R. O'Connor II 14 65 4.64 10 9 7 15.38% 40% $256,710 $3,949 $18,336 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
Pamela A. Arnold 7 18 2.57 0 2 2 0% 22.22% $13,835 $769 $1,976 0 0
Robert R. O'Connor II 15 54 3.6 2 7 15 3.7% 44.44% $94,760 $1,755 $6,317 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
Pamela A. Arnold 10 53 5.3 2 5 8 3.77% 28.3% $67,185 $1,268 $6,719 0 0
Robert R. O'Connor II 13 51 3.92 4 9 9 7.84% 43.14% $146,292 $2,868 $11,253 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 $22,031
Pamela A. Arnold 10 48 4.8 2 4 10 4.17% 33.33% $91,967 $1,916 $9,197 0 0
Robert R. O'Connor II 11 57 5.18 4 6 9 7.02% 33.33% $129,599 $2,274 $11,782 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
Pamela A. Arnold 12 48 4 3 4 7 6.25% 29.17% $97,477 $2,031 $8,123 0 0
Robert R. O'Connor II 16 59 3.69 6 5 9 10.17% 33.9% $123,910 $2,100 $7,744 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
Pamela A. Arnold 12 52 4.33 8 6 9 15.38% 44.23% $174,039 $3,347 $14,503 0 0
Robert R. O'Connor II 16 62 3.88 4 12 7 6.45% 37.1% $150,161 $2,422 $9,385 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
Pamela A. Arnold 8 33 4.13 3 9 7 9.09% 57.58% $108,594 $3,291 $13,574 0 0
Robert R. O'Connor II 15 55 3.67 7 11 8 12.73% 47.27% $203,849 $3,706 $13,590 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
Pamela A. Arnold 8 36 4.5 4 7 1 11.11% 33.33% $71,485 $1,986 $8,936 0 0
Robert R. O'Connor II 14 70 5 8 11 9 11.43% 40% $128,400 $1,834 $9,171 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
Pamela A. Arnold 8 40 5 2 8 4 5% 35% $48,602 $1,215 $6,075 0 0
Robert R. O'Connor II 22 89 4.05 9 9 17 10.11% 39.33% $134,051 $1,506 $6,093 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
Pamela A. Arnold 13 50 3.85 3 6 7 6% 32% $61,790 $1,236 $4,753 0 0
Robert R. O'Connor II 18 85 4.72 11 19 12 12.94% 49.41% $148,549 $1,748 $8,253 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 $22,031
Pamela A. Arnold 13 31 2.38 0 2 6 0% 25.81% $19,232 $620 $1,479 0 0
Robert R. O'Connor II 26 75 2.88 10 13 7 13.33% 40% $178,516 $2,380 $6,866 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
Pamela A. Arnold 8 63 7.88 4 9 17 6.35% 47.62% $114,264 $1,814 $14,283 0 0
Robert R. O'Connor II 27 111 4.11 21 25 13 18.92% 53.15% $306,700 $2,763 $11,359 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
Pamela A. Arnold 14 47 3.36 2 3 2 4.26% 14.89% $45,550 $969 $3,254 0 0
Robert R. O'Connor II 24 104 4.33 10 19 12 9.62% 39.42% $233,762 $2,248 $9,740 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
Pamela A. Arnold 11 46 4.18 3 4 7 6.52% 30.43% $55,796 $1,213 $5,072 0 0
Robert R. O'Connor II 19 88 4.63 22 14 11 25% 53.41% $244,404 $2,777 $12,863 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
Pamela A. Arnold 2 9 4.5 1 0 0 11.11% 11.11% $5,925 $658 $2,963 0 0
Robert R. O'Connor II 14 70 5 5 12 12 7.14% 41.43% $89,164 $1,274 $6,369 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
Pamela A. Arnold 16 39 2.44 3 7 6 7.69% 41.03% $34,662 $889 $2,166 0 0
Robert R. O'Connor II 17 84 4.94 8 8 5 9.52% 25% $87,942 $1,047 $5,173 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
Pamela A. Arnold 34 104 3.06 7 9 6 6.73% 21.15% $88,549 $851 $2,604 0 0
Robert R. O'Connor II 14 55 3.93 4 6 5 7.27% 27.27% $70,096 $1,274 $5,007 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
Pamela A. Arnold 35 183 5.23 19 21 19 10.38% 32.24% $224,290 $1,226 $6,408 0 0
Robert R. O'Connor II 15 46 3.07 5 3 7 10.87% 32.61% $93,466 $2,032 $6,231 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Pamela A. Arnold 32 144 4.5 16 13 18 11.11% 32.64% $148,302 $1,030 $4,634 0 0
Robert R. O'Connor II 13 52 4 7 5 5 13.46% 32.69% $121,585 $2,338 $9,353 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
Pamela A. Arnold 26 121 4.65 10 13 17 8.26% 33.06% $104,460 $863 $4,018 0 0
Robert R. O'Connor II 10 42 4.2 3 7 6 7.14% 38.1% $76,312 $1,817 $7,631 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 $22,031
Pamela A. Arnold 29 187 6.45 24 19 27 12.83% 37.43% $232,867 $1,245 $8,030 0 0
Robert R. O'Connor II 19 105 5.53 14 18 12 13.33% 41.9% $364,633 $3,473 $19,191 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
Pamela A. Arnold 38 217 5.71 32 32 23 14.75% 40.09% $324,413 $1,495 $8,537 0 0
Robert R. O'Connor II 14 75 5.36 9 10 5 12% 32% $194,958 $2,599 $13,926 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
Pamela A. Arnold 31 159 5.13 30 24 22 18.87% 47.8% $270,410 $1,701 $8,723 0 0
Robert R. O'Connor II 22 110 5 14 7 12 12.73% 30% $333,688 $3,034 $15,168 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
Pamela A. Arnold 22 83 3.77 16 16 9 19.28% 49.4% $104,727 $1,262 $4,760 0 0
Robert R. O'Connor II 29 146 5.03 19 15 15 13.01% 33.56% $381,591 $2,614 $13,158 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
Pamela A. Arnold 20 98 4.9 12 11 11 12.24% 34.69% $84,430 $862 $4,222 0 0
Robert R. O'Connor II 23 136 5.91 18 18 15 13.24% 37.5% $401,086 $2,949 $17,439 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
Pamela A. Arnold 2 4 2 0 1 0 0% 25% $2,055 $514 $1,028 0 0
Robert R. O'Connor II 27 132 4.89 14 13 12 10.61% 29.55% $243,413 $1,844 $9,015 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
Pamela A. Arnold 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robert R. O'Connor II 21 131 6.24 17 20 17 12.98% 41.22% $375,040 $2,863 $17,859 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
Pamela A. Arnold 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robert R. O'Connor II 14 100 7.14 16 14 19 16% 49% $260,253 $2,603 $18,590 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
Pamela A. Arnold 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robert R. O'Connor II 21 137 6.52 14 15 21 10.22% 36.5% $200,368 $1,463 $9,541 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
Pamela A. Arnold 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Robert R. O'Connor II 32 152 4.75 20 13 14 13.16% 30.92% $163,005 $1,072 $5,094 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
Pamela A. Arnold 7 26 3.71 2 3 1 7.69% 23.08% $10,536 $405 $1,505 0 0
Robert R. O'Connor II 29 187 6.45 31 14 24 16.58% 36.9% $235,718 $1,261 $8,128 0 0