He wasn't.
Wouldn't it be possible in theory for him to be the whale and for you to be unaware of the fact?
Results: 2013-Feb-10 11:49am (up to block 220548)
Address Target Should Win | #Bets | Win | Lose | Refunds | BTC In | BTC Out | Refund | Profit | RTP
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1dice1e6p 1 0.00002 | 80922 | 0 (0.00000) | 79539 | 1383 | 859.06 | 0.01 | 114.72 | 859.04 | 0.002
1dice1Qf4 2 0.00003 | 3928 | 0 (0.00000) | 3427 | 501 | 67.59 | 0.01 | 17.22 | 67.57 | 0.021
1dice2pxm 4 0.00006 | 6311 | 1 (0.00017) | 5885 | 425 | 95.43 | 159.98 | 11.46 | -64.55 | 167.650
1dice2vQo 8 0.00012 | 8825 | 3 (0.00036) | 8394 | 428 | 140.72 | 176.03 | 10.03 | -35.30 | 125.092
1dice2WmR 16 0.00024 | 11346 | 1 (0.00009) | 10921 | 424 | 388.89 | 4.77 | 22.04 | 384.12 | 1.227
1dice2xkj 32 0.00049 | 13470 | 5 (0.00038) | 13070 | 395 | 768.57 | 733.68 | 1.36 | 34.88 | 95.461
1dice2zdo 64 0.00098 | 15749 | 15 (0.00098) | 15302 | 432 | 1195.50 | 331.68 | 55.74 | 863.82 | 27.744
1dice37Ee 128 0.00195 | 17271 | 33 (0.00196) | 16801 | 437 | 2182.82 | 1422.40 | 48.33 | 760.41 | 65.164
1dice3jkp 256 0.00391 | 21150 | 97 (0.00467) | 20673 | 380 | 3873.23 | 6344.68 | 13.18 | -2471.44 | 163.808
1dice4J1m 512 0.00781 | 29331 | 225 (0.00786) | 28416 | 690 | 5460.75 | 5536.22 | 10.00 | -75.47 | 101.382
1dice5wwE 1000 0.01526 | 95985 | 1485 (0.01555) | 94038 | 462 | 27934.37 | 23784.68 | 1.98 | 4149.68 | 85.145
1dice61SN 1500 0.02289 | 21402 | 505 (0.02399) | 20546 | 351 | 7444.56 | 8052.43 | 15.07 | -607.87 | 108.165
1dice6DPt 2000 0.03052 | 57767 | 1800 (0.03137) | 55578 | 389 | 29262.80 | 26234.40 | 9.33 | 3028.40 | 89.651
1dice6gJg 3000 0.04578 | 24268 | 1097 (0.04600) | 22750 | 421 | 9005.87 | 9913.69 | 25.13 | -907.81 | 110.080
1dice6GV5 4000 0.06104 | 30068 | 1825 (0.06146) | 27869 | 374 | 7412.17 | 7228.37 | 31.30 | 183.79 | 97.520
1dice6wBx 6000 0.09155 | 38114 | 3539 (0.09386) | 34168 | 407 | 15085.14 | 17073.09 | 7.19 | -1987.94 | 113.178
1dice6YgE 8000 0.12207 | 155329 | 19061 (0.12308) | 135806 | 462 | 77562.44 | 76716.98 | 100.29 | 845.45 | 98.910
1dice7EYz 12000 0.18311 | 64360 | 11787 (0.18453) | 52089 | 484 | 152739.06 | 155506.75 | 3314.75 | -2767.69 | 101.812
1dice7fUk 16000 0.24414 | 195336 | 47509 (0.24384) | 147324 | 503 | 344252.62 | 330337.35 | 2056.21 | 13915.27 | 95.958
1dice7W2A 24000 0.36621 | 191006 | 70105 (0.36807) | 120360 | 541 | 554838.51 | 547429.17 | 1013.05 | 7409.33 | 98.665
1dice8EMZ 32000 0.48828 | 967358 | 471403 (0.48804) | 494505 | 1450 | 797196.64 | 780815.15 | 2924.27 | 16381.49 | 97.945
1dice97EC 32768 0.50000 | 470620 | 234711 (0.49969) | 235000 | 909 | 612473.89 | 599047.38 | 5720.47 | 13426.51 | 97.808
1dice9wcM 48000 0.73242 | 284994 | 209192 (0.73545) | 75248 | 554 | 280572.11 | 274047.59 | 5454.95 | 6524.52 | 97.675
1dicec9k7 52000 0.79346 | 60546 | 47735 (0.79419) | 12370 | 441 | 56810.60 | 55589.11 | 1187.23 | 1221.48 | 97.850
1dicegEAr 56000 0.85449 | 44807 | 37974 (0.85687) | 6343 | 490 | 65535.46 | 65083.88 | 400.32 | 451.58 | 99.311
1diceDCd2 60000 0.91553 | 63603 | 57831 (0.91595) | 5307 | 465 | 61019.06 | 60566.42 | 0.25 | 452.63 | 99.258
1dice9wVt 64000 0.97656 | 13743 | 12664 (0.98019) | 256 | 823 | 22706.33 | 22308.04 | 239.76 | 398.29 | 98.246
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small (bets < 4 BTC) | 2884877 | 1182663 | 1687482 | 14732 | 657969.55 | 644806.27 | 243.07 | 13163.28 | 97.999
big (bets >= 4 BTC) | 102732 | 47940 | 54503 | 289 | 2478914.76 | 2429637.81 | 22562.70 | 49276.94 | 98.012
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| 2987609 | 1230603 | 1741985 | 15021 | 3136884.32 | 3074444.09 | 22805.77 | 62440.23 | 98.009
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SD Profit before fees: 62440.23338066 BTC (1.991%)
Cumulative Fees Paid: 2186.73667500 BTC
SD Profit after fees: 60253.49670566 BTC (1.921%)
Pending Liabilities: -0.49849999 BTC
Final SD Profit: 60253.99520565 BTC (1.921%)
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Since Satoshi Dice started, there have been:
Blockchain Tx: 9663919 : SatoshiDice Tx: 5502829 (56.9%)
Blockchain MB: 4124.6 : SatoshiDice MB: 2258.8 (54.8%)