Warhammer 40000

Chaos - Chaos Space Marines

Format

Faction

Time window

Number of weeks to include, most recent first.

Games played

Win rate

39.6%

Wins / draws / losses

23 / 7 / 37

Entries

Win rate trend

Before/after comparison

Before-Balance (Sept. 30, 2026) → Since-Balance (Sept. 30, 2026)

	Previous period	Current period	Delta
Win rate	40.2%	34.1%	-6.1 pts
Representation	3.1%	2.6%	-0.5 pts

Matchups

The estimated range (in brackets under the win rate on the faction table, in its own column on the matchup table) shows the interval the true win rate very likely falls within (95% confidence interval, Wilson score): the smaller the sample, the wider that range.

Opponent	Games played	Win rate	Estimated range
Necrons Small sample	5	20.0%	3.6% – 62.4%
Tyranids - Genestealers Cult Small sample	5	30.0%	7.3% – 70.1%
Chaos - Emperor's Children Small sample	4	25.0%	4.6% – 69.9%
Imperium - Adepta Sororitas Small sample	4	50.0%	15.0% – 85.0%
Imperium - Adeptus Astartes - Dark Angels Small sample	4	50.0%	15.0% – 85.0%
Imperium - Adeptus Custodes Small sample	4	50.0%	15.0% – 85.0%
Imperium - Astra Militarum Small sample	4	75.0%	30.1% – 95.4%
Chaos - World Eaters Small sample	3	50.0%	12.5% – 87.5%
Chaos - Death Guard Small sample	3	16.7%	1.8% – 69.0%
Leagues of Votann Small sample	3	16.7%	1.8% – 69.0%
Imperium - Grey Knights Small sample	2	0.0%	0.0% – 65.8%
Imperium - Adeptus Astartes - Blood Angels Small sample	2	75.0%	19.8% – 97.3%
Imperium - Adeptus Astartes - Space Wolves Small sample	2	50.0%	9.5% – 90.5%
Aeldari - Craftworlds Small sample	2	0.0%	0.0% – 65.8%
Chaos - Thousand Sons Small sample	2	50.0%	9.5% – 90.5%
Orks Small sample	2	0.0%	0.0% – 65.8%
T'au Empire Small sample	2	50.0%	9.5% – 90.5%
Tyranids Small sample	2	100.0%	34.2% – 100.0%
Chaos - Chaos Knights Small sample	2	100.0%	34.2% – 100.0%
Chaos - Chaos Space Marines Small sample	2	50.0%	9.5% – 90.5%
Imperium - Adeptus Astartes - Salamanders Small sample	1	0.0%	0.0% – 79.3%
Aeldari - Drukhari Small sample	1	0.0%	0.0% – 79.3%
Imperium - Adeptus Astartes Small sample	1	100.0%	20.7% – 100.0%
Imperium - Adeptus Mechanicus Small sample	1	0.0%	0.0% – 79.3%
Chaos - Daemons Small sample	1	100.0%	20.7% – 100.0%
Imperium - Adeptus Astartes - Raven Guard Small sample	1	0.0%	0.0% – 79.3%
Imperium - Inquisition Small sample	1	0.0%	0.0% – 79.3%
Aeldari - Harlequins Small sample	1	0.0%	0.0% – 79.3%

Methodology

Classification — Force disposition

Coverage: 100.0%

Value	Games played	Win rate
Take and hold	29	39.7%
Priority assets	12	41.7%
Disruption	11	50.0%
Reconnaissance	10	25.0%
Purge the foe	5	40.0%