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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
William Tharrenos 56 204 3.64 43 25 25 21.08% 45.59% $1,001,637 $4,910 $17,886 0 1
Donald C. Bookman 5 16 3.2 0 1 5 0% 37.5% $20,357 $1,272 $4,071 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
William Tharrenos 54 209 3.87 32 36 27 15.31% 45.45% $894,212 $4,279 $16,559 0 0
Donald C. Bookman 4 13 3.25 0 0 0 0% 0% $9,583 $737 $2,396 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
William Tharrenos 74 291 3.93 36 40 32 12.37% 37.11% $1,049,418 $3,606 $14,181 0 0
Donald C. Bookman 8 27 3.38 4 7 3 14.81% 51.85% $120,915 $4,478 $15,114 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
William Tharrenos 54 178 3.3 29 21 25 16.29% 42.13% $579,710 $3,257 $10,735 0 0
Donald C. Bookman 8 33 4.13 6 4 5 18.18% 45.45% $138,295 $4,191 $17,287 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
William Tharrenos 38 129 3.39 20 14 11 15.5% 34.88% $384,292 $2,979 $10,113 0 0
Donald C. Bookman 2 10 5 0 1 1 0% 20% $10,734 $1,073 $5,367 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
William Tharrenos 38 180 4.74 28 18 25 15.56% 39.44% $573,095 $3,184 $15,081 0 1
Donald C. Bookman 3 8 2.67 0 1 1 0% 25% $10,865 $1,358 $3,622 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
William Tharrenos 41 193 4.71 17 21 25 8.81% 32.64% $382,113 $1,980 $9,320 0 0
Donald C. Bookman 2 20 10 3 4 3 15% 50% $112,383 $5,619 $56,192 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
William Tharrenos 49 190 3.88 24 19 21 12.63% 33.68% $493,824 $2,599 $10,078 0 0
Donald C. Bookman 11 66 6 6 9 6 9.09% 31.82% $169,315 $2,565 $15,392 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
William Tharrenos 50 230 4.6 31 28 31 13.48% 39.13% $840,814 $3,656 $16,816 0 1
Donald C. Bookman 15 81 5.4 3 10 8 3.7% 25.93% $55,859 $690 $3,724 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
William Tharrenos 31 141 4.55 22 19 21 15.6% 43.97% $605,989 $4,298 $19,548 0 0
Donald C. Bookman 17 116 6.82 13 10 9 11.21% 27.59% $124,415 $1,073 $7,319 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
William Tharrenos 25 119 4.76 15 17 22 12.61% 45.38% $468,503 $3,937 $18,740 0 0
Donald C. Bookman 25 153 6.12 20 18 12 13.07% 32.68% $163,446 $1,068 $6,538 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
William Tharrenos 29 117 4.03 6 20 15 5.13% 35.04% $386,698 $3,305 $13,334 0 0
Donald C. Bookman 14 86 6.14 9 7 10 10.47% 30.23% $115,959 $1,348 $8,283 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
William Tharrenos 24 97 4.04 8 8 12 8.25% 28.87% $349,427 $3,602 $14,559 0 0
Donald C. Bookman 12 90 7.5 5 10 12 5.56% 30% $112,490 $1,250 $9,374 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
William Tharrenos 36 171 4.75 18 24 19 10.53% 35.67% $698,354 $4,084 $19,399 0 2
Donald C. Bookman 9 54 6 4 5 6 7.41% 27.78% $72,289 $1,339 $8,032 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
William Tharrenos 22 104 4.73 7 8 10 6.73% 24.04% $247,751 $2,382 $11,261 0 0
Donald C. Bookman 11 60 5.45 6 8 12 10% 43.33% $110,301 $1,838 $10,027 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
William Tharrenos 22 87 3.95 8 11 4 9.2% 26.44% $220,459 $2,534 $10,021 0 0
Donald C. Bookman 6 40 6.67 3 6 2 7.5% 27.5% $67,097 $1,677 $11,183 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
William Tharrenos 21 94 4.48 6 6 9 6.38% 22.34% $172,962 $1,840 $8,236 0 0
Donald C. Bookman 6 29 4.83 0 1 0 0% 3.45% $12,426 $428 $2,071 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
William Tharrenos 24 90 3.75 13 8 8 14.44% 32.22% $290,573 $3,229 $12,107 0 0
Donald C. Bookman 8 43 5.38 3 9 4 6.98% 37.21% $89,706 $2,086 $11,213 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
William Tharrenos 10 37 3.7 7 8 6 18.92% 56.76% $162,000 $4,378 $16,200 0 0
Donald C. Bookman 7 31 4.43 2 3 1 6.45% 19.35% $23,516 $759 $3,359 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 4 12 3 0 0 3 0% 25% $3,239 $270 $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. 4 13.53% 40.55% $5,513 $22,031
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 17 73 4.29 8 9 7 10.96% 32.88% $54,983 $753 $3,234 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 16 94 5.88 19 11 15 20.21% 47.87% $103,359 $1,100 $6,460 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 6 12 2 1 3 1 8.33% 41.67% $8,826 $736 $1,471 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 7 39 5.57 4 4 4 10.26% 30.77% $14,234 $365 $2,033 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 12 81 6.75 8 13 11 9.88% 39.51% $64,088 $791 $5,341 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 13 74 5.69 9 10 11 12.16% 40.54% $42,159 $570 $3,243 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 17 104 6.12 7 9 12 6.73% 26.92% $46,749 $450 $2,750 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
William Tharrenos 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Donald C. Bookman 2 2 1 0 0 0 0% 0% $74 $37 $37 0 0