Maybe this not exactly what you need, but this concept will help.

SQL : SELECT @rownum:=@rownum+1 “rank”, IF(@scorep.score, @rownum2:=@rownum, @rownum2:=@rownum2) ‘rank2′, p.name, @score:=p.score ‘score’ FROM player2 p, (SELECT @rownum:=0, @score:=0, @rownum2:=1) r order by score desc

Result :
rank rank2 name score Ascending
1 1 bill 200
2 1 cal 200
3 3 john 150
4 4 tom 50
5 4 jack 50

DROP TABLE IF EXISTS `player2`;
CREATE TABLE `player2` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(45) NOT NULL,
`score` int(11) NOT NULL DEFAULT ’0′,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

–
– Dumping data for table `player2`
–

LOCK TABLES `player2` WRITE;
/*!40000 ALTER TABLE `player2` DISABLE KEYS */;
INSERT INTO `player2` VALUES (1,’bill’,200),(2,’john’,150),(3,’tom’,50),(4,’jack’,50),(5,’cal’,200);
/*!40000 ALTER TABLE `player2` ENABLE KEYS */;
UNLOCK TABLES;

SELECT * FROM player2 p;
id name score
1, ‘bill’, 200
2, ‘john’, 150
3, ‘tom’, 50
4, ‘jack’, 50
5, ‘cal’, 200

Ranking players
SELECT @rownum:=@rownum+1 ‘rank’,p. `name`, p.`score` FROM player2 p,
(SELECT @rownum:=0) r order by score desc ;

When I run a rank of score I get
rank name score
1 ‘bill’, 200
2 ‘cal’, 200
3 ‘john’, 150
4 ‘tom’, 50
5 ‘jack’, 50

I would like to get the result below
rank name score
1 ‘bill’, 200
1 ‘cal’, 200
2 ‘john’, 150
4 ‘tom’, 50
4 ‘jack’, 50

Thank you
Tom

(select @row_number:=0); select row_number from (select id,@row_number:=@row_number+1 as row_number from some_table order by some_column asc) sub1 where id = 28