Table:
text: 1988 Senior PGA Tour
Tournament results
Tournament results
Date_ Tournament Location_ Purse_ Winner Score _1st_Prize_
Jun 19 Northville Long Island Classic New York 350000 Don Bies (1) 202 (-14) 52500
Jun 26 Southwestern Bell Classic Oklahoma 250000 Gary Player (10) 203 (-13) 37500
Jul 4 Rancho Murieta Senior Gold Rush California 350000 Bob Charles (6) 207 (-9) 52500
Jul 10 GTE Northwest Classic Washington 300000 Bruce Crampton (13) 207 (-9) 45000
Jul 17 Showdown Classic Utah 350000 Miller Barber (21) 207 (-9) 52500
Jul 23 Newport Cup Rhode Island 250000 Walt Zembriski (1) 132 (-12) 37500
Jul 31 Digital Seniors Classic Massachusetts 300000 Chi Chi Rodriguez (12) 202 (-14) 45000
Aug 8 U.S. Senior Open Illinois 325000 Gary Player (11) 288 (E) 65000

text: 1988 Senior PGA Tour
Tournament results
Tournament results
Date_ Tournament Location_ Purse_ Winner Score _1st_Prize_
Jan 17 MONY Senior Tournament of Champions California 100000 Dave Hill (2) 211 (-5) 30000
Feb 14 General Foods PGA Seniors` Championship Florida 350000 Gary Player (8) 284 (-4) 63000
Feb 21 GTE Suncoast Classic Florida 300000 Dale Douglass (5) 210 (-6) 45000
Feb 28 Aetna Challenge Florida 300000 Gary Player (9) 207 (-9) 45000
Mar 6 Vintage Chrysler Invitational California 320000 Orville Moody (5) 263 (-25) 48000
Mar 13 GTE Classic California 275000 Harold Henning (2) 214 (-2) 41250
Mar 20 The Pointe/Del E. Webb Arizona Classic Arizona 225000 Al Geiberger (4) 199 (-17) 33750

Question: What is the average 1st prize ($) for the Gte Northwest Classic with a score of 207 (-9) among 1988 Senior PGA Tour tournament results?