Here are the top 100 arranged by guts per game (GPG), or the estimate of average buy-in per game.

GPG Player
2295 Thraxle
1731 potato27
1583 MadHat_Sam
1311 StudiousGangster
998 El Destructor
779 snoopdog
722 shadolin
700 Orlafede
690 _Towelie_
648 Simons
640 PSUWill
633 mba
610 timmmmmmmaaayy
610 captainLAGER
589 squidmaster
585 mr Kreuzfeld
508 Chris0123
497 paypal
488 'dasfury'
487 fishnetangel
480 MooMooFarm
459 Cassablanca
458 Äkäkäkäkä!
430 AMO
390 aer
389 Mitsi the cat
384 Dancerr
349 cruzader
341 nexon
328 Seppl1983
322 TheONLYprophet
303 MadWilly
301 Honyo
300 V1P
298 rigor mortis
297 2512321
297 markobg
295 habit1
292 CuteKittens
290 ( . ) ( . )
286 sisu
285 Simmo3k
284 SpineBreaker
281 mrRo
280 fcuku
278 Schotte29
268 "July8778
265 rerrr
265 CheezeMonkey
263 Elf Master 2000?
262 Defi
259 Gurgi
251 oilking
250 Vestbanebarn
249 kolof
247 ZIGIBOOM
247 Bec
242 jethr0
230 Gdott
224 GronamOx
222 WanderingBuddha
216 nyub
212 Vohaul
207 .GREEN
203 masterDD
203 kakku man
200 WoahHaiKittie
199 existential
196 Eugene42marvin
194 cnkcnk
194 beyazguvercinus
188 magnushc
188 Henrik
181 fiero600
179 WILenin
179 elvis_09
174 savif
174 Embair
172 I will lose
170 DJCrowther
162 Toxim*
158 jetsjetsjets31
157 imanema
154 danigman
152 Jbean
148 Fatman_x
142 JR junior
127 Firinneach
126 kimmy382
116 AlexBallDrop
114 hatty
109 expi
91 nonzdanonz
86 2nasty
85 riccardo
77 unike
50 panzer
50 Loobee
50 etpicker
50 Extasy