Skip to:

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Jerry Hollendorfer 8 12 1.5 2 0 3 16.67% 41.67% $81,344 $6,779 $10,168 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 8 15 1.88 1 2 0 6.67% 20% $23,117 $1,541 $2,890 0 0
Jerry Hollendorfer 11 37 3.36 3 3 5 8.11% 29.73% $129,908 $3,511 $11,810 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 44 3.14 2 3 4 4.55% 20.45% $154,133 $3,503 $11,010 0 0
Jerry Hollendorfer 44 105 2.39 17 17 17 16.19% 48.57% $761,008 $7,248 $17,296 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 12 68 5.67 9 8 10 13.24% 39.71% $252,181 $3,709 $21,015 0 0
Jerry Hollendorfer 84 263 3.13 47 52 37 17.87% 51.71% $2,281,979 $8,677 $27,166 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 65 4.64 10 9 7 15.38% 40% $256,710 $3,949 $18,336 0 1
Jerry Hollendorfer 67 232 3.46 35 34 36 15.09% 45.26% $1,620,956 $6,987 $24,193 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 15 54 3.6 2 7 15 3.7% 44.44% $94,760 $1,755 $6,317 0 0
Jerry Hollendorfer 68 212 3.12 33 32 27 15.57% 43.4% $1,541,411 $7,271 $22,668 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 13 51 3.92 4 9 9 7.84% 43.14% $146,292 $2,868 $11,253 0 0
Jerry Hollendorfer 142 488 3.44 87 79 84 17.83% 51.23% $4,647,690 $9,524 $32,730 12 15

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 11 57 5.18 4 6 9 7.02% 33.33% $129,599 $2,274 $11,782 0 0
Jerry Hollendorfer 216 951 4.4 176 140 125 18.51% 46.37% $7,191,756 $7,562 $33,295 12 17

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 16 59 3.69 6 5 9 10.17% 33.9% $123,910 $2,100 $7,744 0 0
Jerry Hollendorfer 228 971 4.26 174 158 150 17.92% 49.64% $9,542,402 $9,827 $41,853 16 26

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 16 62 3.88 4 12 7 6.45% 37.1% $150,161 $2,422 $9,385 0 0
Jerry Hollendorfer 263 1078 4.1 188 145 156 17.44% 45.36% $9,775,311 $9,068 $37,168 16 26

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 15 55 3.67 7 11 8 12.73% 47.27% $203,849 $3,706 $13,590 0 0
Jerry Hollendorfer 262 1114 4.25 219 195 151 19.66% 50.72% $11,625,395 $10,436 $44,372 15 27

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 70 5 8 11 9 11.43% 40% $128,400 $1,834 $9,171 0 0
Jerry Hollendorfer 269 1094 4.07 247 216 151 22.58% 56.12% $12,806,593 $11,706 $47,608 19 40

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 22 89 4.05 9 9 17 10.11% 39.33% $134,051 $1,506 $6,093 0 0
Jerry Hollendorfer 243 1049 4.32 241 172 153 22.97% 53.96% $11,221,761 $10,698 $46,180 17 43

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 18 85 4.72 11 19 12 12.94% 49.41% $148,549 $1,748 $8,253 0 0
Jerry Hollendorfer 237 1058 4.46 212 193 172 20.04% 54.54% $7,575,613 $7,160 $31,965 8 27

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 26 75 2.88 10 13 7 13.33% 40% $178,516 $2,380 $6,866 0 0
Jerry Hollendorfer 267 1155 4.33 250 236 185 21.65% 58.1% $7,864,753 $6,809 $29,456 7 23

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 27 111 4.11 21 25 13 18.92% 53.15% $306,700 $2,763 $11,359 0 0
Jerry Hollendorfer 256 1126 4.4 286 210 170 25.4% 59.15% $9,307,328 $8,266 $36,357 17 30

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 24 104 4.33 10 19 12 9.62% 39.42% $233,762 $2,248 $9,740 0 0
Jerry Hollendorfer 260 1210 4.65 273 212 192 22.56% 55.95% $7,309,169 $6,041 $28,112 6 13

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 19 88 4.63 22 14 11 25% 53.41% $244,404 $2,777 $12,863 0 0
Jerry Hollendorfer 289 1161 4.02 282 215 163 24.29% 56.85% $8,637,578 $7,440 $29,888 7 27

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 70 5 5 12 12 7.14% 41.43% $89,164 $1,274 $6,369 0 0
Jerry Hollendorfer 267 1012 3.79 243 182 136 24.01% 55.43% $7,293,148 $7,207 $27,315 5 27

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 17 84 4.94 8 8 5 9.52% 25% $87,942 $1,047 $5,173 0 0
Jerry Hollendorfer 264 908 3.44 234 172 133 25.77% 59.36% $5,409,913 $5,958 $20,492 4 16

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 55 3.93 4 6 5 7.27% 27.27% $70,096 $1,274 $5,007 0 0
Jerry Hollendorfer 323 1196 3.7 281 194 174 23.49% 54.26% $5,496,697 $4,596 $17,018 3 23

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 15 46 3.07 5 3 7 10.87% 32.61% $93,466 $2,032 $6,231 0 0
Jerry Hollendorfer 330 1300 3.94 308 262 185 23.69% 58.08% $6,009,234 $4,622 $18,210 4 24

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 13 52 4 7 5 5 13.46% 32.69% $121,585 $2,338 $9,353 0 0
Jerry Hollendorfer 333 1216 3.65 282 211 193 23.19% 56.41% $6,262,447 $5,150 $18,806 4 16

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 10 42 4.2 3 7 6 7.14% 38.1% $76,312 $1,817 $7,631 0 0
Jerry Hollendorfer 274 1119 4.08 265 193 150 23.68% 54.33% $5,909,710 $5,281 $21,568 2 16

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 19 105 5.53 14 18 12 13.33% 41.9% $364,633 $3,473 $19,191 0 1
Jerry Hollendorfer 284 1133 3.99 263 167 191 23.21% 54.81% $5,497,981 $4,853 $19,359 0 7

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 75 5.36 9 10 5 12% 32% $194,958 $2,599 $13,926 0 0
Jerry Hollendorfer 219 892 4.07 216 145 113 24.22% 53.14% $5,111,302 $5,730 $23,339 3 15

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 22 110 5 14 7 12 12.73% 30% $333,688 $3,034 $15,168 0 1
Jerry Hollendorfer 236 952 4.03 224 148 133 23.53% 53.05% $5,326,901 $5,595 $22,572 4 23

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 29 146 5.03 19 15 15 13.01% 33.56% $381,591 $2,614 $13,158 0 1
Jerry Hollendorfer 218 922 4.23 242 154 133 26.25% 57.38% $6,447,301 $6,993 $29,575 6 32

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 23 136 5.91 18 18 15 13.24% 37.5% $401,086 $2,949 $17,439 0 1
Jerry Hollendorfer 222 938 4.23 229 152 138 24.41% 55.33% $5,208,149 $5,552 $23,460 3 29

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 27 132 4.89 14 13 12 10.61% 29.55% $243,413 $1,844 $9,015 0 0
Jerry Hollendorfer 218 876 4.02 197 150 130 22.49% 54.45% $4,249,038 $4,851 $19,491 4 21

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 21 131 6.24 17 20 17 12.98% 41.22% $375,040 $2,863 $17,859 0 1
Jerry Hollendorfer 206 916 4.45 205 166 143 22.38% 56.11% $3,584,384 $3,913 $17,400 0 11

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 14 100 7.14 16 14 19 16% 49% $260,253 $2,603 $18,590 0 0
Jerry Hollendorfer 201 846 4.21 196 153 121 23.17% 55.56% $2,954,130 $3,492 $14,697 0 15

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 21 137 6.52 14 15 21 10.22% 36.5% $200,368 $1,463 $9,541 0 0
Jerry Hollendorfer 195 819 4.2 192 141 132 23.44% 56.78% $1,983,238 $2,422 $10,170 0 8

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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 32 152 4.75 20 13 14 13.16% 30.92% $163,005 $1,072 $5,094 0 0
Jerry Hollendorfer 195 880 4.51 218 144 109 24.77% 53.52% $1,926,897 $2,190 $9,882 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. 3.31 13.64% 40.9% $5,415 $17,925
Robert R. O'Connor II 29 187 6.45 31 14 24 16.58% 36.9% $235,718 $1,261 $8,128 0 0
Jerry Hollendorfer 221 943 4.27 198 161 124 21% 51.22% $3,043,864 $3,228 $13,773 4 14