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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
Robert R. O'Connor II 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Ralph R. Riviezzo 2 2 1 1 0 0 50% 50% $16,010 $8,005 $8,005 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
Robert R. O'Connor II 12 68 5.67 9 8 10 13.24% 39.71% $252,181 $3,709 $21,015 0 0
Ralph R. Riviezzo 39 186 4.77 27 25 35 14.52% 46.77% $701,403 $3,771 $17,985 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
Robert R. O'Connor II 14 65 4.64 10 9 7 15.38% 40% $256,710 $3,949 $18,336 0 1
Ralph R. Riviezzo 40 208 5.2 31 31 30 14.9% 44.23% $785,151 $3,775 $19,629 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
Robert R. O'Connor II 15 54 3.6 2 7 15 3.7% 44.44% $94,760 $1,755 $6,317 0 0
Ralph R. Riviezzo 20 108 5.4 6 10 12 5.56% 25.93% $172,125 $1,594 $8,606 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Robert R. O'Connor II 13 51 3.92 4 9 9 7.84% 43.14% $146,292 $2,868 $11,253 0 0
Ralph R. Riviezzo 50 233 4.66 19 36 27 8.15% 35.19% $551,431 $2,367 $11,029 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
Robert R. O'Connor II 11 57 5.18 4 6 9 7.02% 33.33% $129,599 $2,274 $11,782 0 0
Ralph R. Riviezzo 20 98 4.9 9 13 16 9.18% 38.78% $247,304 $2,524 $12,365 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
Robert R. O'Connor II 16 59 3.69 6 5 9 10.17% 33.9% $123,910 $2,100 $7,744 0 0
Ralph R. Riviezzo 11 64 5.82 0 6 9 0% 23.44% $102,916 $1,608 $9,356 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
Robert R. O'Connor II 16 62 3.88 4 12 7 6.45% 37.1% $150,161 $2,422 $9,385 0 0
Ralph R. Riviezzo 9 54 6 2 2 3 3.7% 12.96% $110,154 $2,040 $12,239 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
Robert R. O'Connor II 15 55 3.67 7 11 8 12.73% 47.27% $203,849 $3,706 $13,590 0 0
Ralph R. Riviezzo 4 5 1.25 1 0 1 20% 40% $15,558 $3,112 $3,890 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
Robert R. O'Connor II 14 70 5 8 11 9 11.43% 40% $128,400 $1,834 $9,171 0 0
Ralph R. Riviezzo 6 41 6.83 4 8 7 9.76% 46.34% $107,839 $2,630 $17,973 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
Robert R. O'Connor II 22 89 4.05 9 9 17 10.11% 39.33% $134,051 $1,506 $6,093 0 0
Ralph R. Riviezzo 10 32 3.2 1 8 3 3.13% 37.5% $101,130 $3,160 $10,113 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
Robert R. O'Connor II 18 85 4.72 11 19 12 12.94% 49.41% $148,549 $1,748 $8,253 0 0
Ralph R. Riviezzo 16 77 4.81 2 4 1 2.6% 9.09% $105,355 $1,368 $6,585 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
Robert R. O'Connor II 26 75 2.88 10 13 7 13.33% 40% $178,516 $2,380 $6,866 0 0
Ralph R. Riviezzo 17 90 5.29 7 7 8 7.78% 24.44% $202,074 $2,245 $11,887 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
Robert R. O'Connor II 27 111 4.11 21 25 13 18.92% 53.15% $306,700 $2,763 $11,359 0 0
Ralph R. Riviezzo 28 141 5.04 10 8 12 7.09% 21.28% $310,181 $2,200 $11,078 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
Robert R. O'Connor II 24 104 4.33 10 19 12 9.62% 39.42% $233,762 $2,248 $9,740 0 0
Ralph R. Riviezzo 22 123 5.59 7 4 4 5.69% 12.2% $170,799 $1,389 $7,764 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
Robert R. O'Connor II 19 88 4.63 22 14 11 25% 53.41% $244,404 $2,777 $12,863 0 0
Ralph R. Riviezzo 21 138 6.57 7 19 11 5.07% 26.81% $281,044 $2,037 $13,383 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
Robert R. O'Connor II 14 70 5 5 12 12 7.14% 41.43% $89,164 $1,274 $6,369 0 0
Ralph R. Riviezzo 19 155 8.16 15 16 21 9.68% 33.55% $224,186 $1,446 $11,799 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
Robert R. O'Connor II 17 84 4.94 8 8 5 9.52% 25% $87,942 $1,047 $5,173 0 0
Ralph R. Riviezzo 29 148 5.1 5 10 15 3.38% 20.27% $102,199 $691 $3,524 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
Robert R. O'Connor II 14 55 3.93 4 6 5 7.27% 27.27% $70,096 $1,274 $5,007 0 0
Ralph R. Riviezzo 28 137 4.89 8 10 11 5.84% 21.17% $114,085 $833 $4,074 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
Robert R. O'Connor II 15 46 3.07 5 3 7 10.87% 32.61% $93,466 $2,032 $6,231 0 0
Ralph R. Riviezzo 40 229 5.73 19 23 22 8.3% 27.95% $225,500 $985 $5,638 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
Robert R. O'Connor II 13 52 4 7 5 5 13.46% 32.69% $121,585 $2,338 $9,353 0 0
Ralph R. Riviezzo 57 225 3.95 23 29 20 10.22% 32% $257,458 $1,144 $4,517 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
Robert R. O'Connor II 10 42 4.2 3 7 6 7.14% 38.1% $76,312 $1,817 $7,631 0 0
Ralph R. Riviezzo 26 122 4.69 12 12 21 9.84% 36.89% $141,616 $1,161 $5,447 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
Robert R. O'Connor II 19 105 5.53 14 18 12 13.33% 41.9% $364,633 $3,473 $19,191 0 1
Ralph R. Riviezzo 50 209 4.18 15 18 23 7.18% 26.79% $224,262 $1,073 $4,485 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
Robert R. O'Connor II 14 75 5.36 9 10 5 12% 32% $194,958 $2,599 $13,926 0 0
Ralph R. Riviezzo 40 212 5.3 19 24 25 8.96% 32.08% $270,669 $1,277 $6,767 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
Robert R. O'Connor II 22 110 5 14 7 12 12.73% 30% $333,688 $3,034 $15,168 0 1
Ralph R. Riviezzo 47 245 5.21 21 25 26 8.57% 29.39% $230,343 $940 $4,901 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
Robert R. O'Connor II 29 146 5.03 19 15 15 13.01% 33.56% $381,591 $2,614 $13,158 0 1
Ralph R. Riviezzo 42 231 5.5 25 19 19 10.82% 27.27% $299,777 $1,298 $7,138 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
Robert R. O'Connor II 23 136 5.91 18 18 15 13.24% 37.5% $401,086 $2,949 $17,439 0 1
Ralph R. Riviezzo 41 246 6 36 27 36 14.63% 40.24% $301,724 $1,227 $7,359 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
Robert R. O'Connor II 27 132 4.89 14 13 12 10.61% 29.55% $243,413 $1,844 $9,015 0 0
Ralph R. Riviezzo 45 291 6.47 34 42 30 11.68% 36.43% $375,533 $1,290 $8,345 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
Robert R. O'Connor II 21 131 6.24 17 20 17 12.98% 41.22% $375,040 $2,863 $17,859 0 1
Ralph R. Riviezzo 41 234 5.71 27 39 29 11.54% 40.6% $282,858 $1,209 $6,899 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
Robert R. O'Connor II 14 100 7.14 16 14 19 16% 49% $260,253 $2,603 $18,590 0 0
Ralph R. Riviezzo 28 133 4.75 16 21 26 12.03% 47.37% $147,177 $1,107 $5,256 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
Robert R. O'Connor II 21 137 6.52 14 15 21 10.22% 36.5% $200,368 $1,463 $9,541 0 0
Ralph R. Riviezzo 16 89 5.56 5 9 7 5.62% 23.6% $34,098 $383 $2,131 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
Robert R. O'Connor II 32 152 4.75 20 13 14 13.16% 30.92% $163,005 $1,072 $5,094 0 0
Ralph R. Riviezzo 11 99 9 8 12 11 8.08% 31.31% $56,359 $569 $5,124 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
Robert R. O'Connor II 29 187 6.45 31 14 24 16.58% 36.9% $235,718 $1,261 $8,128 0 0
Ralph R. Riviezzo 14 104 7.43 10 10 14 9.62% 32.69% $46,526 $447 $3,323 0 0