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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
Jonathan B. Buckley 34 75 2.21 14 15 10 18.67% 52% $304,733 $4,063 $8,963 0 0
William Tharrenos 39 96 2.46 18 14 9 18.75% 42.71% $433,472 $4,515 $11,115 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
Jonathan B. Buckley 55 298 5.42 63 50 33 21.14% 48.99% $1,165,262 $3,910 $21,187 0 0
William Tharrenos 52 190 3.65 35 23 31 18.42% 46.84% $1,076,217 $5,664 $20,696 0 3

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
Jonathan B. Buckley 43 271 6.3 53 59 38 19.56% 55.35% $1,142,057 $4,214 $26,559 0 0
William Tharrenos 56 204 3.64 43 25 25 21.08% 45.59% $1,001,637 $4,910 $17,886 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
Jonathan B. Buckley 45 223 4.96 36 36 41 16.14% 50.67% $745,450 $3,343 $16,566 0 0
William Tharrenos 54 209 3.87 32 36 27 15.31% 45.45% $894,212 $4,279 $16,559 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
Jonathan B. Buckley 43 200 4.65 47 34 31 23.5% 56% $916,928 $4,585 $21,324 0 1
William Tharrenos 74 291 3.93 36 40 32 12.37% 37.11% $1,049,418 $3,606 $14,181 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
Jonathan B. Buckley 41 216 5.27 28 42 42 12.96% 51.85% $738,426 $3,419 $18,010 0 0
William Tharrenos 54 178 3.3 29 21 25 16.29% 42.13% $579,710 $3,257 $10,735 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
Jonathan B. Buckley 38 132 3.47 16 17 25 12.12% 43.94% $257,214 $1,949 $6,769 0 0
William Tharrenos 38 129 3.39 20 14 11 15.5% 34.88% $384,292 $2,979 $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
Jonathan B. Buckley 61 279 4.57 37 49 47 13.26% 47.67% $688,969 $2,469 $11,295 0 0
William Tharrenos 32 119 3.72 17 5 18 14.29% 33.61% $307,495 $2,584 $9,609 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
Jonathan B. Buckley 55 318 5.78 39 43 58 12.26% 44.03% $739,664 $2,326 $13,448 0 0
William Tharrenos 38 180 4.74 28 18 25 15.56% 39.44% $573,095 $3,184 $15,081 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
Jonathan B. Buckley 56 334 5.96 40 44 54 11.98% 41.32% $691,351 $2,070 $12,346 0 0
William Tharrenos 41 193 4.71 17 21 25 8.81% 32.64% $382,113 $1,980 $9,320 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
Jonathan B. Buckley 60 347 5.78 38 58 65 10.95% 46.4% $701,611 $2,022 $11,694 0 0
William Tharrenos 49 190 3.88 24 19 21 12.63% 33.68% $493,824 $2,599 $10,078 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
Jonathan B. Buckley 73 368 5.04 48 63 48 13.04% 43.21% $848,871 $2,307 $11,628 0 0
William Tharrenos 50 230 4.6 31 28 31 13.48% 39.13% $840,814 $3,656 $16,816 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
Jonathan B. Buckley 49 273 5.57 31 45 45 11.36% 44.32% $401,528 $1,471 $8,194 0 0
William Tharrenos 31 141 4.55 22 19 21 15.6% 43.97% $605,989 $4,298 $19,548 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
Jonathan B. Buckley 75 321 4.28 31 36 40 9.66% 33.33% $459,224 $1,431 $6,123 0 1
William Tharrenos 25 119 4.76 15 17 22 12.61% 45.38% $468,503 $3,937 $18,740 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
Jonathan B. Buckley 90 397 4.41 40 55 58 10.08% 38.54% $532,026 $1,340 $5,911 0 0
William Tharrenos 29 117 4.03 6 20 15 5.13% 35.04% $386,698 $3,305 $13,334 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
Jonathan B. Buckley 81 379 4.68 62 50 52 16.36% 43.27% $662,904 $1,749 $8,184 0 0
William Tharrenos 24 97 4.04 8 8 12 8.25% 28.87% $349,427 $3,602 $14,559 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
Jonathan B. Buckley 85 361 4.25 54 53 47 14.96% 42.66% $699,125 $1,937 $8,225 0 1
William Tharrenos 36 171 4.75 18 24 19 10.53% 35.67% $698,354 $4,084 $19,399 0 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. 4 13.53% 40.55% $5,513 $22,031
Jonathan B. Buckley 82 345 4.21 39 44 36 11.3% 34.49% $620,015 $1,797 $7,561 0 2
William Tharrenos 22 104 4.73 7 8 10 6.73% 24.04% $247,751 $2,382 $11,261 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
Jonathan B. Buckley 71 360 5.07 58 55 38 16.11% 41.94% $770,481 $2,140 $10,852 0 1
William Tharrenos 22 87 3.95 8 11 4 9.2% 26.44% $220,459 $2,534 $10,021 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
Jonathan B. Buckley 78 392 5.03 41 58 52 10.46% 38.52% $609,517 $1,555 $7,814 0 0
William Tharrenos 21 94 4.48 6 6 9 6.38% 22.34% $172,962 $1,840 $8,236 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
Jonathan B. Buckley 59 344 5.83 50 55 57 14.53% 47.09% $591,406 $1,719 $10,024 0 0
William Tharrenos 24 90 3.75 13 8 8 14.44% 32.22% $290,573 $3,229 $12,107 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
Jonathan B. Buckley 68 329 4.84 24 62 47 7.29% 40.43% $399,740 $1,215 $5,879 0 0
William Tharrenos 10 37 3.7 7 8 6 18.92% 56.76% $162,000 $4,378 $16,200 0 0