<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS OF GREATE BAY CASINO CORPORATION AND
SUBSIDIARIES AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED> 
<CIK> 0000030117
<NAME> GREATE BAY CASINO CORPORATION
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1998             APR-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1998             JUN-30-1997             JUN-30-1997
<CASH>                                           8,915                  23,966                  23,966
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                      304                  23,760                  23,760
<ALLOWANCES>                                       220                  14,521                  14,521
<INVENTORY>                                        158                   3,828                   3,828
<CURRENT-ASSETS>                                12,700                  42,784                  42,784
<PP&E>                                           2,211                 320,112                 320,112
<DEPRECIATION>                                     999                 168,368                 168,368
<TOTAL-ASSETS>                                  18,777                 216,864                 216,864
<CURRENT-LIABILITIES>                          108,820                  48,341                  48,341
<BONDS>                                         32,022                 316,243                 316,243
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                           519                     519                     519
<OTHER-SE>                                    (141,360)               (152,177)               (152,177)
<TOTAL-LIABILITY-AND-EQUITY>                    18,777                 216,864                 216,864
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                                 2,482                  68,164                 136,438
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                      134                  54,725                 106,630
<OTHER-EXPENSES>                                (3,787)                  6,839                  15,297
<LOSS-PROVISION>                                     7                     909                   1,559
<INTEREST-EXPENSE>                               3,851                   9,018                  18,527
<INCOME-PRETAX>                                  2,277                  (3,327)                 (5,575)
<INCOME-TAX>                                         2                      35                     210
<INCOME-CONTINUING>                              2,275                  (3,362)                 (5,785)
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                     310                     310
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     2,275                  (3,052)                 (5,475)
<EPS-PRIMARY>                                     (.44)                   (.59)                  (1.06)
<EPS-DILUTED>                                     (.44)                   (.59)                  (1.06)
        

</TABLE>