ICM Calculator
Use this ICM calculator to convert tournament chip stacks into real-money equity based on payout structures, remaining players, and chip stacks. The Independent Chip Model (ICM) helps poker players make mathematically optimal decisions in high-pressure situations like the bubble and final table.
Calculate tournament equity instantly
Adjust for stack sizes and payout structure
Improve shove, call, and fold decisions
What is ICM in Poker?
The Independent Chip Model (ICM) is a mathematical model used in poker tournaments to estimate a player’s share of the prize pool based on their chip stack relative to other players.
Unlike cash games, tournament chips do not have a linear value. This means doubling your stack does not double your expected winnings. ICM accounts for this by factoring in payout structures and the probability of finishing in each position.
How This ICM Calculator Works
This calculator converts chip stacks into Expected Value (EV) by simulating how often each player finishes in each payout position.
To use it effectively, input:
Each player’s chip stack
The tournament payout structure
The calculator then outputs each player’s equity as a percentage of the total prize pool.
When Should You Use ICM?
ICM is most important in high-leverage tournament situations, including:
The bubble - when one player remains before payouts begin
Final tables - where payout jumps are significant
Short-handed play - where each decision has larger impact
In these spots, correct ICM decisions can dramatically increase your long-term tournament ROI.
ICM Strategy Tips
Understanding ICM leads to better strategic adjustments:
Play tighter when calling all-ins near the bubble
Apply pressure as a big stack against medium stacks
Avoid marginal spots when survival has significant value
Recognize payout jumps before making aggressive plays
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[ Back ] Current File : /opt/bitnami/apps/wordpress/wp-includes/atomlib.php <?php
/**
* Atom Syndication Format PHP Library
*
* @package AtomLib
* @link http://code.google.com/p/phpatomlib/
*
* @author Elias Torres <elias@torrez.us>
* @version 0.4
* @since 2.3.0
*/
/**
* Structure that store common Atom Feed Properties
*
* @package AtomLib
*/
class AtomFeed {
/**
* Stores Links
* @var array
* @access public
*/
var $links = array();
/**
* Stores Categories
* @var array
* @access public
*/
var $categories = array();
/**
* Stores Entries
*
* @var array
* @access public
*/
var $entries = array();
}
/**
* Structure that store Atom Entry Properties
*
* @package AtomLib
*/
class AtomEntry {
/**
* Stores Links
* @var array
* @access public
*/
var $links = array();
/**
* Stores Categories
* @var array
* @access public
*/
var $categories = array();
}
/**
* AtomLib Atom Parser API
*
* @package AtomLib
*/
class AtomParser {
var $NS = 'http://www.w3.org/2005/Atom';
var $ATOM_CONTENT_ELEMENTS = array('content','summary','title','subtitle','rights');
var $ATOM_SIMPLE_ELEMENTS = array('id','updated','published','draft');
var $debug = false;
var $depth = 0;
var $indent = 2;
var $in_content;
var $ns_contexts = array();
var $ns_decls = array();
var $content_ns_decls = array();
var $content_ns_contexts = array();
var $is_xhtml = false;
var $is_html = false;
var $is_text = true;
var $skipped_div = false;
var $FILE = "php://input";
var $feed;
var $current;
var $map_attrs_func;
var $map_xmlns_func;
var $error;
var $content;
/**
* PHP5 constructor.
*/
function __construct() {
$this->feed = new AtomFeed();
$this->current = null;
$this->map_attrs_func = array( __CLASS__, 'map_attrs' );
$this->map_xmlns_func = array( __CLASS__, 'map_xmlns' );
}
/**
* PHP4 constructor.
*/
public function AtomParser() {
self::__construct();
}
/**
* Map attributes to key="val"
*
* @param string $k Key
* @param string $v Value
* @return string
*/
public static function map_attrs($k, $v) {
return "$k=\"$v\"";
}
/**
* Map XML namespace to string.
*
* @param indexish $p XML Namespace element index
* @param array $n Two-element array pair. [ 0 => {namespace}, 1 => {url} ]
* @return string 'xmlns="{url}"' or 'xmlns:{namespace}="{url}"'
*/
public static function map_xmlns($p, $n) {
$xd = "xmlns";
if( 0 < strlen($n[0]) ) {
$xd .= ":{$n[0]}";
}
return "{$xd}=\"{$n[1]}\"";
}
function _p($msg) {
if($this->debug) {
print str_repeat(" ", $this->depth * $this->indent) . $msg ."\n";
}
}
function error_handler($log_level, $log_text, $error_file, $error_line) {
$this->error = $log_text;
}
function parse() {
set_error_handler(array(&$this, 'error_handler'));
array_unshift($this->ns_contexts, array());
if ( ! function_exists( 'xml_parser_create_ns' ) ) {
trigger_error( __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) );
return false;
}
$parser = xml_parser_create_ns();
xml_set_element_handler($parser, array($this, "start_element"), array($this, "end_element"));
xml_parser_set_option($parser,XML_OPTION_CASE_FOLDING,0);
xml_parser_set_option($parser,XML_OPTION_SKIP_WHITE,0);
xml_set_character_data_handler($parser, array($this, "cdata"));
xml_set_default_handler($parser, array($this, "_default"));
xml_set_start_namespace_decl_handler($parser, array($this, "start_ns"));
xml_set_end_namespace_decl_handler($parser, array($this, "end_ns"));
$this->content = '';
$ret = true;
$fp = fopen($this->FILE, "r");
while ($data = fread($fp, 4096)) {
if($this->debug) $this->content .= $data;
if(!xml_parse($parser, $data, feof($fp))) {
/* translators: 1: Error message, 2: Line number. */
trigger_error(sprintf(__('XML Error: %1$s at line %2$s')."\n",
xml_error_string(xml_get_error_code($parser)),
xml_get_current_line_number($parser)));
$ret = false;
break;
}
}
fclose($fp);
if (PHP_VERSION_ID < 80000) { // xml_parser_free() has no effect as of PHP 8.0.
xml_parser_free($parser);
}
unset($parser);
restore_error_handler();
return $ret;
}
function start_element($parser, $name, $attrs) {
$name_parts = explode(":", $name);
$tag = array_pop($name_parts);
switch($name) {
case $this->NS . ':feed':
$this->current = $this->feed;
break;
case $this->NS . ':entry':
$this->current = new AtomEntry();
break;
};
$this->_p("start_element('$name')");
#$this->_p(print_r($this->ns_contexts,true));
#$this->_p('current(' . $this->current . ')');
array_unshift($this->ns_contexts, $this->ns_decls);
$this->depth++;
if(!empty($this->in_content)) {
$this->content_ns_decls = array();
if($this->is_html || $this->is_text)
trigger_error("Invalid content in element found. Content must not be of type text or html if it contains markup.");
$attrs_prefix = array();
// resolve prefixes for attributes
foreach($attrs as $key => $value) {
$with_prefix = $this->ns_to_prefix($key, true);
$attrs_prefix[$with_prefix[1]] = $this->xml_escape($value);
}
$attrs_str = join(' ', array_map($this->map_attrs_func, array_keys($attrs_prefix), array_values($attrs_prefix)));
if(strlen($attrs_str) > 0) {
$attrs_str = " " . $attrs_str;
}
$with_prefix = $this->ns_to_prefix($name);
if(!$this->is_declared_content_ns($with_prefix[0])) {
array_push($this->content_ns_decls, $with_prefix[0]);
}
$xmlns_str = '';
if(count($this->content_ns_decls) > 0) {
array_unshift($this->content_ns_contexts, $this->content_ns_decls);
$xmlns_str .= join(' ', array_map($this->map_xmlns_func, array_keys($this->content_ns_contexts[0]), array_values($this->content_ns_contexts[0])));
if(strlen($xmlns_str) > 0) {
$xmlns_str = " " . $xmlns_str;
}
}
array_push($this->in_content, array($tag, $this->depth, "<". $with_prefix[1] ."{$xmlns_str}{$attrs_str}" . ">"));
} else if(in_array($tag, $this->ATOM_CONTENT_ELEMENTS) || in_array($tag, $this->ATOM_SIMPLE_ELEMENTS)) {
$this->in_content = array();
$this->is_xhtml = $attrs['type'] == 'xhtml';
$this->is_html = $attrs['type'] == 'html' || $attrs['type'] == 'text/html';
$this->is_text = !in_array('type',array_keys($attrs)) || $attrs['type'] == 'text';
$type = $this->is_xhtml ? 'XHTML' : ($this->is_html ? 'HTML' : ($this->is_text ? 'TEXT' : $attrs['type']));
if(in_array('src',array_keys($attrs))) {
$this->current->$tag = $attrs;
} else {
array_push($this->in_content, array($tag,$this->depth, $type));
}
} else if($tag == 'link') {
array_push($this->current->links, $attrs);
} else if($tag == 'category') {
array_push($this->current->categories, $attrs);
}
$this->ns_decls = array();
}
function end_element($parser, $name) {
$name_parts = explode(":", $name);
$tag = array_pop($name_parts);
$ccount = count($this->in_content);
# if we are *in* content, then let's proceed to serialize it
if(!empty($this->in_content)) {
# if we are ending the original content element
# then let's finalize the content
if($this->in_content[0][0] == $tag &&
$this->in_content[0][1] == $this->depth) {
$origtype = $this->in_content[0][2];
array_shift($this->in_content);
$newcontent = array();
foreach($this->in_content as $c) {
if(count($c) == 3) {
array_push($newcontent, $c[2]);
} else {
if($this->is_xhtml || $this->is_text) {
array_push($newcontent, $this->xml_escape($c));
} else {
array_push($newcontent, $c);
}
}
}
if(in_array($tag, $this->ATOM_CONTENT_ELEMENTS)) {
$this->current->$tag = array($origtype, join('',$newcontent));
} else {
$this->current->$tag = join('',$newcontent);
}
$this->in_content = array();
} else if($this->in_content[$ccount-1][0] == $tag &&
$this->in_content[$ccount-1][1] == $this->depth) {
$this->in_content[$ccount-1][2] = substr($this->in_content[$ccount-1][2],0,-1) . "/>";
} else {
# else, just finalize the current element's content
$endtag = $this->ns_to_prefix($name);
array_push($this->in_content, array($tag, $this->depth, "</$endtag[1]>"));
}
}
array_shift($this->ns_contexts);
$this->depth--;
if($name == ($this->NS . ':entry')) {
array_push($this->feed->entries, $this->current);
$this->current = null;
}
$this->_p("end_element('$name')");
}
function start_ns($parser, $prefix, $uri) {
$this->_p("starting: " . $prefix . ":" . $uri);
array_push($this->ns_decls, array($prefix,$uri));
}
function end_ns($parser, $prefix) {
$this->_p("ending: #" . $prefix . "#");
}
function cdata($parser, $data) {
$this->_p("data: #" . str_replace(array("\n"), array("\\n"), trim($data)) . "#");
if(!empty($this->in_content)) {
array_push($this->in_content, $data);
}
}
function _default($parser, $data) {
# when does this gets called?
}
function ns_to_prefix($qname, $attr=false) {
# split 'http://www.w3.org/1999/xhtml:div' into ('http','//www.w3.org/1999/xhtml','div')
$components = explode(":", $qname);
# grab the last one (e.g 'div')
$name = array_pop($components);
if(!empty($components)) {
# re-join back the namespace component
$ns = join(":",$components);
foreach($this->ns_contexts as $context) {
foreach($context as $mapping) {
if($mapping[1] == $ns && strlen($mapping[0]) > 0) {
return array($mapping, "$mapping[0]:$name");
}
}
}
}
if($attr) {
return array(null, $name);
} else {
foreach($this->ns_contexts as $context) {
foreach($context as $mapping) {
if(strlen($mapping[0]) == 0) {
return array($mapping, $name);
}
}
}
}
}
function is_declared_content_ns($new_mapping) {
foreach($this->content_ns_contexts as $context) {
foreach($context as $mapping) {
if($new_mapping == $mapping) {
return true;
}
}
}
return false;
}
function xml_escape($content)
{
return str_replace(array('&','"',"'",'<','>'),
array('&','"',''','<','>'),
$content );
}
}
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