This Rating takes into account only the matches played in the last 30 years. Only bowlers active till at least 2023 are considered in this rating. Brief explanation of the ratings is given before each section (Detailed Explanation) and at the end. So, here are the Top 5 Spin bowlers in Test Cricket in the last 30 years.

CONTENTS

3. PRIMARY CRITERIA

3.1. PROLIFIC

3.2. CONSISTENT

3.2.1. Against All Teams

3.2.2. Against Top Teams

3.3. ATTACKING

3.3.1. Against All Teams

3.3.2. Against Top Teams

3.4. BEST BOWLING (WKTS)

3.4.1. Against All Teams

3.4.2. Against Top Teams

3.5. PRIMARY RATING

4. CONDITIONS CRITERIA

4.1. HOME/AWAY

4.1.1. At Home

4.1.2. Away From Home

4.2. FAVOURABLE/UNFAVOURABLE CONDITIONS

4.2.1. Favourable Conditions Rating

4.2.1.1. Non Asians In Asia

4.2.1.2. Asians In Asia

4.2.2. Unfavourable Conditions Rating

4.2.2.1. Non Asians Outside Asia

4.2.2.2. Asians Outside Asia

4.3. CONDITIONS RATING

5. SECONDARY CRITERIA

5.1. WKTS/INN

5.2. TOP FORM

5.3. IMPACT INNINGS

5.4. SECONDARY RATING

6. PRESENT ERA RATING

6.1. BRIEF EXPLANATION

6.1.1. Dynamic Nature

6.1.2. Trend Setter (TS)

6.1.3. Top Teams (TT)

6.1.4. Abbreviations

THE CRITERIA

CRITERIA	CONSTITUENTS
Primary	Wickets, Average, Strike Rate, Top Inns
Conditions	Home, Away, In Asia, Outside Asia
Secondary	Wkts Per Inn, Top Form, Impact Inns

QUALIFICATION

Min Innings (TT)	20
Min Wkts	30

PRIMARY CRITERIA

CRITERIA	STAT	POINTS
Prolific	Wickets Taken	250.00
Consistent	Average	300.00
Attacking	Strike Rate	300.00
Best Bowling	Top Bowling Performances	150.00

PROLIFIC

Criteria: Points For Wickets Taken

RANK	BOWLER	NAT	INNS	WKTS	RAT
TS	NM Lyon	AUS	262	567	250.00
1	NM Lyon	AUS	262	567	250.00
2	R Ashwin	IND	200	537	236.77
3	RA Jadeja	IND	167	348	153.44
4	KA Maharaj	SA	106	218	96.12
5	AY Patel	NZ	39	91	40.12

CONSISTENT

R Ave

Relative Average (R Ave) is a more accurate type of average. Know How It Is Calculated. Briefly it takes into account:-

Strength of Opposition.
Venues at which a player has played.
Time Period in which a bowler has been active

Criteria: Points For Relative Average

Min Qualification For TS
Min Wickets	50
Min Wickets (TT)	40

Against All Teams

RANK	BOWLER	INNS	RUNS	WKTS	AVE	R AVE	RAT
TS	AR Patel	29	1121	57	19.67	24.68	120.00
1	R Ashwin	200	12891	537	24.01	25.14	117.81
2	RA Jadeja	167	8741	348	25.12	26.24	112.87
3	KA Maharaj	106	6370	218	29.22	26.47	111.86
4	NM Lyon	262	17099	567	30.16	26.93	109.96
5	AY Patel	39	2623	91	28.82	27.90	106.15

Against Top Teams

RANK	BOWLER	INNS	RUNS	WKTS	AVE	R AVE	RAT
TS	AR Patel	23	876	46	19.04	24.50	180.00
1	RA Jadeja	123	6909	269	25.68	25.90	170.25
2	R Ashwin	144	9571	366	26.15	26.09	169.00
3	AY Patel	27	1786	63	28.35	26.57	165.92
4	NM Lyon	189	12715	395	32.19	27.51	160.26
5	KA Maharaj	66	4359	122	35.73	29.79	148.03

ATTACKING

R SR

Relative Strike Rate (R SR) for bowlers is calculated using the same method as R Ave with average being replaced with SR.

Criteria: Points For R SR or Balls/Wkt

Min Qualification For TS
Min Wickets	50
Min Wickets (TT)	40

Against All Teams

RANK	BOWLER	INNS	BLS	WKTS	SR	R SR	RAT
TS	Kuldeep Yadav	32	2893	76	38.07	55.10	120.00
1	R Ashwin	200	27241	537	50.73	60.83	108.68
2	KA Maharaj	106	12308	218	56.46	62.08	106.51
3	AY Patel	39	5020	91	55.16	65.24	101.34
4	NM Lyon	262	34832	567	61.43	65.46	101.00
5	RA Jadeja	167	20241	348	58.16	69.89	94.60

Against Top Teams

RANK	BOWLER	INNS	BLS	WKTS	SR	R SR	RAT
TS	Kuldeep Yadav	22	1860	46	40.43	56.51	180.00
1	AY Patel	27	3204	63	50.86	59.43	171.15
2	R Ashwin	144	20511	366	56.04	64.80	156.97
3	NM Lyon	189	25972	395	65.75	67.56	150.54
4	RA Jadeja	123	16071	269	59.74	69.95	145.40
5	KA Maharaj	66	8202	122	67.23	70.15	144.99

BEST BOWLING (WKTS)

BBW

In this criteria, we have taken the top 7 bowling performances by Wkts of a bowler. Best Bowling By Wickets (BBW) is simply the total wickets taken in the 7 innings divided by 7.

Criteria: Points For Wkts Taken In Top 7 Inns

Against All Teams

RANK	BOWLER	1	2	3	4	5	6	7	BBW	RAT
TS	NM Lyon	8/50	8/64	7/94	7/94	7/152	6/49	6/60	7.00	50.00
1	NM Lyon	8/50	8/64	7/94	7/94	7/152	6/49	6/60	7.00	50.00
2	R Ashwin	7/59	7/66	7/71	7/83	7/103	7/145	6/31	6.86	48.98
3	KA Maharaj	9/129	7/32	7/40	7/102	6/40	5/36	5/59	6.57	46.94
4	AY Patel	10/119	6/57	6/57	6/90	5/59	5/89	5/103	6.14	43.88
5	RA Jadeja	7/42	7/48	6/63	6/138	5/21	5/30	5/41	5.86	41.84

Against Top Teams

RANK	BOWLER	1	2	3	4	5	6	7	BBW	RAT
TS	NM Lyon	8/50	8/64	7/94	7/152	6/49	6/65	6/122	6.86	100.00
1	NM Lyon	8/50	8/64	7/94	7/152	6/49	6/65	6/122	6.86	100.00
2	R Ashwin	7/66	7/103	7/145	6/41	6/46	6/55	6/61	6.43	93.75
3	RA Jadeja	7/42	7/48	6/63	6/138	5/21	5/30	5/41	5.86	85.42
3	KA Maharaj	9/129	7/102	6/40	5/94	5/123	5/180	4/58	5.86	85.42
5	AY Patel	10/119	6/57	5/59	5/89	5/103	4/106	3/42	5.43	79.17

PRIMARY RATING

The total of the above four criteria comes out to be 1,000.00 points. The Primary Rating is the addition of the points a bowler scored in the four criteria. The Weightage of the Rating is 40%.

RANK	BOWLER	PRO	CON	ATT	BBW	RAT	PRI PTS
1	R Ashwin	236.77	286.81	108.68	142.73	931.96	372.78
2	NM Lyon	250.00	270.22	101.00	150.00	921.77	368.71
3	RA Jadeja	153.44	283.12	94.60	127.25	803.80	321.52
4	KA Maharaj	96.12	259.90	106.51	132.36	739.87	295.95
5	AY Patel	40.12	272.06	101.34	123.04	707.71	283.09

CONDITIONS CRITERIA

The Conditions

The Conditions Ratings are calculated by applying the four criteria of the Primary Rating to diffirent conditions. If Innings are less than the Qualification than the Player gets 50% of the Points.

The four conditions criteria and thier weightage is as follows:-

CRITERIA	POINTS
Home	30.00
Away	120.00
Favourable Conditions	30.00
Unfavourable Conditions	120.00

HOME/AWAY

HM/AW RATING

Points to note:-

U.A.E. is considered as a second Home for Pakistan and Afghanistan.
All Home and Away stats of Pakistani and Afghani bowlers are calculated accordingly.

At Home

Min Innings Vs Top Teams: 7

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	R Ashwin	127	383	21.57	46.03	933.43	28.00
2	RA Jadeja	105	256	20.96	51.20	832.22	24.97
3	NM Lyon	136	273	31.09	64.68	808.40	24.25
4	KA Maharaj	50	86	30.43	56.86	589.57	17.69
5	AY Patel	7	6	40.33	122.00	500.00	15.00

Away From Home

Min Innings Vs Top Teams: 7

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	NM Lyon	126	294	29.29	58.42	870.74	104.49
2	KA Maharaj	56	132	28.43	56.20	728.78	87.45
3	R Ashwin	73	154	30.05	62.42	709.15	85.10
4	AY Patel	32	85	28.01	50.45	699.13	83.90
5	RA Jadeja	62	92	36.70	77.55	571.34	68.56

FAVOURABLE/UNFAVOURABLE CONDITIONS

Favourable/Unfavourable Conditions Rating

Points to note:-

Unfavourable Conditions (UC) is Outside Asia for Spinners and In Asia for Pacers.
Favourable Conditions (FC) are the opposite.

Favourable Conditions Rating

Non Asians In Asia

Min Innings Vs All Teams: 5

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	NM Lyon	56	154	30.06	60.15	897.97	26.94
2	AY Patel	29	81	28.40	51.09	743.46	22.30
3	KA Maharaj	21	60	29.73	55.55	655.72	19.67

Asians In Asia

Min Innings Vs Top Teams: 10

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	R Ashwin	145	433	21.76	45.87	962.04	28.86
2	RA Jadeja	109	269	21.33	51.14	829.95	24.90

Unfavourable Conditions Rating

Non Asians Outside Asia

Min Innings Vs Top Teams: 10

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	NM Lyon	206	413	30.19	61.91	979.53	117.54
2	KA Maharaj	85	158	29.03	56.80	781.28	93.75
3	AY Patel	10	10	32.30	88.20	500.00	60.00

Asians Outside Asia

Min Innings Vs All Teams: 5

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	R Ashwin	55	104	33.34	70.94	883.86	106.06
2	RA Jadeja	58	79	38.00	82.09	703.67	84.44

CONDITIONS RATING

The Conditions Rating is the addition of the points a bowler scored in the four criteria. The Weightage of the Rating is 30%.

RANK	BOWLER	AWAY	HOME	UC	FC	CON PTS
1	NM Lyon	870.74	202.10	979.53	224.49	273.22
2	R Ashwin	709.15	233.36	883.86	240.51	248.03
3	KA Maharaj	728.78	147.39	781.28	163.93	218.57
4	RA Jadeja	571.34	208.05	703.67	207.49	202.87
5	AY Patel	699.13	125.00	500.00	185.87	181.20

SECONDARY CRITERIA

The Secondary Rating consists of three parts. If Innings are less than the Qualification than the Player gets 50% of the Points.

The three secondary criteria and thier weightage is as follows:-

CRITERIA	POINTS
Wickets Per Inn	50.00
Top Form	100.00
Impact Innings	150.00

WKTS/INN

WPI RATING

Points to note about WPI Rating:-

It gives points for three criteria.
The number of wkts per inn overall and aganst Top Teams.
The number of bowled victims per inn.
The number of top 7 batsmen dismissed per inn.

Min Innings Vs Top Teams: 20

RANK	BOWLER	INNS	WKTS	W/I	RAT	WTG
1	R Ashwin	200	537	2.69	808.88	40.44
2	AY Patel	39	91	2.33	730.81	36.54
3	RA Jadeja	167	348	2.08	675.38	33.77
4	NM Lyon	262	567	2.16	608.49	30.42
5	KA Maharaj	106	218	2.06	606.02	30.30

TOP FORM

TF RATING

Points to note about TF Rating:-

TF is calculated by taking the best 30 consecutive innings of a bowler.
The inns are taken such that his points are maximum.
Only innings against Top Teams are considered.

Min Innings Vs Top Teams: 15

RANK	BOWLER	INNS	WKTS	AVE	SR	RAT	WTG
1	R Ashwin	30	82	16.80	41.02	962.25	96.22
2	RA Jadeja	30	86	19.71	51.47	893.72	89.37
3	NM Lyon	30	73	22.85	49.27	886.20	88.62
4	KA Maharaj	30	66	29.00	54.55	789.85	78.99
5	AY Patel	27	63	28.35	50.86	776.92	77.69

IMPACT INNINGS

II RATING

Impact Innings (II) are those innings which have an impact either in terms of wickets or strike rate. Know All About II. These are the criteria for an inning to be included in II:-

A Bowler equal to or more wickets than 2 at a good AVE or SR.
The required AVE or SR is increases as the number of wickets taken increases.

Min Innings Vs Top Teams: 20

RANK	BOWLER	INNS	II	II Perc	RAT	WTG
1	R Ashwin	200	93	46.50	919.79	137.97
2	NM Lyon	262	110	41.98	918.32	137.75
3	RA Jadeja	167	77	46.11	858.80	128.82
4	AY Patel	39	16	41.03	691.30	103.69
5	KA Maharaj	106	35	33.02	566.93	85.04

SECONDARY RATING

The Secondary Rating is the addition of the points a bowler scored in the three criteria. The Weightage of the Rating is 30%.

RANK	BOWLER	TF	WPI	II	SEC RAT
1	R Ashwin	96.22	40.44	137.97	274.64
2	NM Lyon	88.62	30.42	137.75	256.79
3	RA Jadeja	89.37	33.77	128.82	251.96
4	AY Patel	77.69	36.54	103.69	217.93
5	KA Maharaj	78.99	30.30	85.04	194.33

PRESENT ERA RATING

PRESENT ERA Rating is the addition of the points of all the above criteria. The rating is out of 1,000 Pts.

RANK	BOWLER	NAT	PRI RAT	CON RAT	SEC RAT	FIN RAT
1	NM Lyon	AUS	368.71	273.22	256.79	898.72
2	R Ashwin	IND	372.78	248.03	274.64	895.45
3	RA Jadeja	IND	321.52	202.87	251.96	776.35
4	KA Maharaj	SA	295.95	218.57	194.33	708.84
5	AY Patel	NZ	283.09	181.20	217.93	682.21

BRIEF EXPLANATION

Dynamic Nature

Most of our ratings are dynamic, and as new matches are played, the rating of earlier bowlers may change if current bowlers set new benchmarks.

Trend Setter (TS)

TS is the player who does the best in a criteria.
The rating of all other players are calculated taking the TS as the benchmark. Example:-
TS Bowling Ave: 25.00; Player X Ave: 30.00; Section Points: 300.00
TS Points: 300.00 (Max)
Player X Points: TS Ave/Ave X 300 = 25.00/30.00 X 300 = 250.00.
Ratings of all sections are calculated similarly with Ave being replaced by the Criteria Stat.
Know All About the Trend Setter

Top Teams (TT)

An opposition is counted as a TT considering its Win/Loss (WL) Ratios in last 7 years.
Home, Away, In Asia, Outside Asia and Overall WL Ratio is considered.
The WL Ratio should be more than a certain value overall or in specific conditions.