Select an opposing agent to view detailed head-to-head statistics. Compare Killjoy's performance in terms of win rate, KDA, damage output, headshot percentage, and attack/defense effectiveness — all based on real competitive Valorant match data.
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Killjoy
55.6% WR
VS
Viper
44.4% WR
Who Wins the Killjoy vs Viper Matchup?
Winner
Killjoy
Matches: 9
55.6%
Win Rate
44.4%
1.32
Avg KDA
1.39
16.2
Avg Kills
15.7
14.4
Avg Deaths
14.9
143.5
DMG/Round
135.9
26.2%
HS %
31.9%
212
Combat Score
208
48.5%
Attack WR
45.1%
54.9%
Defense WR
51.5%
Killjoy vs Viper Performance Breakdown
Analysis of 9 matches reveals that Killjoy holds a clear advantage over Viper in this head-to-head matchup, winning 3 out of 4 critical performance metrics. While Viper shows strength in one category, Killjoy's overall statistical edge across fragging, damage, and side-specific win rates gives them the upper hand in most engagements.
Fragging Power
1.32Killjoy
1.39Viper
Fragging capabilities are closely matched between Killjoy and Viper, with KDA ratios of 1.32 and 1.39 respectively. This near-parity means mechanical skill and positioning will often determine which agent comes out ahead in direct duels.
Damage Output
143.5Killjoy
135.9Viper
Killjoy outputs 143.5 average damage per round, edging out Viper's 135.9 ADR. This consistent damage advantage helps Killjoy secure more assist credits and finish weakened opponents, contributing to overall team success even when not landing the final blow.
Attack Side
48.5%Killjoy
45.1%Viper
Killjoy shows stronger attack-side performance with a 48.5% win rate versus Viper's 45.1%. When your team needs to plant the spike, Killjoy provides more reliable site execution and entry potential in this specific matchup.
Defense Side
54.9%Killjoy
51.5%Viper
Defensive capabilities favor Killjoy at 54.9% win rate compared to Viper's 51.5%. When holding sites against enemy pushes, Killjoy provides more reliable defensive presence and retake potential in this matchup.
The Killjoy vs Viper matchup in Valorant is a dominant matchup where one agent significantly outperforms. Based on 9 competitive matches analyzed, Killjoy wins 55.6% of the time compared to Viper's 44.4%, a 11.1 percentage point difference. The most significant gap is in headshot accuracy, where Viper consistently outperforms. In this Sentinel vs Controller matchup, Killjoy has overwhelming superiority in this agent matchup. Viper should never take isolated fights against Killjoy and must rely entirely on team coordination, utility, and crossfires to compete effectively.
Killjoy vs Viper Fragging Analysis
Killjoy edges out Viper in a competitive fragging comparison, winning 3 of 5 metrics with notable advantages in kill production, survivability, damage output. With only a 3-2 margin based on 9 matches analyzed, this Killjoy vs Viper matchup remains contestable for both sides. Viper shouldn't feel outgunned — the statistical gap is narrow enough that individual skill, positioning choices, and in-game decision making can easily swing specific encounters in Viper's favor.
Avg KDA
1.32Killjoy
1.39Viper
The KDA comparison between Killjoy and Viper reveals an exceptionally tight contest, with Killjoy averaging 1.32 and Viper posting 1.39. This razor-thin margin of just 0.07 demonstrates that neither agent has a systematic fragging advantage in this matchup. When facing each other in ranked games, success depends almost entirely on individual player mechanics, crosshair placement, and split-second decision making rather than any inherent agent kit advantage. Players on either side should approach these duels with confidence, knowing the statistical playing field is level.
Avg Kills
16.2Killjoy
15.7Viper
Killjoy secures approximately 0.6 more kills per match than Viper in this head-to-head (16.2 vs 15.7). Over the course of a typical 20+ round game, this translates to Killjoy contributing several additional eliminations to their team's efforts. The gap indicates Killjoy's playstyle or kit provides slightly better kill-securing opportunities, though Viper can compensate through superior utility assistance, site anchoring, or clutch performances.
Avg Deaths
14.4Killjoy
14.9Viper
Killjoy survives longer in this matchup, dying 14.4 times per game compared to Viper's 14.9 deaths. This 0.4 death difference per match means Killjoy is available for more rounds, contributing to late-round scenarios and clutch situations more frequently. Viper players should examine their positioning and aggression timing — the data suggests Killjoy's approach to these duels results in better survivability outcomes.
DMG/Round
143.5Killjoy
135.9Viper
Killjoy applies 7.6 more damage per round than Viper in this matchup (143.5 vs 135.9 ADR). While not overwhelming, this gap compounds meaningfully over a full match: Killjoy contributes noticeably more chip damage, assists, and near-kills that set up teammates. Viper can close this gap through better trading patterns, ensuring their damage leads to actual eliminations rather than just tagging opponents who then escape or get healed.
HS %
26.2%Killjoy
31.9%Viper
The headshot percentage disparity between Viper and Killjoy is substantial: 31.9% compared to 26.2%, a 5.8 point difference. Viper consistently displays far superior aim precision in this matchup, turning potential trades into clean kills and surviving encounters that would kill less accurate players. For Killjoy, challenging Viper in a fair aim duel is statistically unwise. Success requires creating unfair fights — off-angles, utility combinations, multi-person pressure — where Viper's aim advantage cannot fully manifest.
Killjoy vs Viper Attack and Defense Performance
Attack Side
Killjoy
48.5%
45.1%
Defense Side
Killjoy
54.9%
51.5%
Attack Side Breakdown
Killjoy holds a meaningful attack-side advantage in the Killjoy vs Viper matchup, winning 48.5% of offensive rounds compared to 45.1% for Viper. This 3.5 percentage point gap translates to real tactical implications that both sides should account for in their attack-side strategies.
Our analysis of 9 matches reveals Killjoy's kit enables more effective site executions across multiple dimensions. Whether through superior entry tools, better post-plant utility, or stronger mid-round adaptability, Killjoy consistently converts attack rounds at a higher rate. Viper teams need to acknowledge this disadvantage and adjust accordingly — consider running more coordinated executes, prioritizing trades over individual plays, and using utility to create advantages before committing to site takes.
Entry fragging dynamics shift noticeably in Killjoy's favor in this matchup. When Killjoy takes the first duel on a site execute, they convert at a meaningfully higher rate than Viper. For Viper players, this means being more selective about entry timings — wait for utility to clear angles, ensure a teammate is positioned to trade, or look for off-angle entries that negate Killjoy's advantages. Killjoy can confidently take entries knowing the data supports aggressive play.
Killjoy has favorable matchups against 12 agents and unfavorable matchups against 13 agents in Valorant. Killjoy's strongest matchup is against KAY/O with a 77.8% win rate. The most challenging matchup is Astra at 28.0% win rate. Use the table below to find specific matchup details and performance metrics.
Killjoy matchup win rates and combat stats in Valorant (Patch 13.02)
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Killjoy's best matchup is against KAY/O, achieving a 77.8% win rate. Killjoy excels in this matchup through superior fragging ability and favorable utility interactions.
What is Killjoy's hardest matchup?
Killjoy's hardest matchup is against Astra, with only a 28.0% win rate. Against this opponent, Killjoy should focus on team coordination and utility usage to compensate.
How many favorable matchups does Killjoy have?
Killjoy has 12 favorable matchups (50%+ win rate) and 13 unfavorable matchups in Valorant. Understanding these matchup dynamics helps you make better agent picks and adapt your playstyle.
How should I play Killjoy in difficult matchups?
When playing Killjoy in difficult matchups, prioritize team coordination, utility usage, and crossfires. Avoid isolated 1v1 duels against unfavorable opponents and look for opportunities to use Killjoy's abilities to create advantages. Adjust your positioning based on whether you're on attack or defense.
What stats matter most in Killjoy's matchups?
Key stats to analyze in Killjoy's matchups include win rate, KDA ratio, average damage per round, and attack/defense win rates. High damage matchups favor aggressive play, while low KDA matchups suggest playing more supportively and relying on team trades.
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Post-plant is where Killjoy's advantage becomes most pronounced. The 3.5% attack-side gap suggests Killjoy excels at converting spike plants into round wins through superior defuse denial or retake resistance. Viper should stack post-plants with multiple players when possible, communicate molly and utility timings precisely, and avoid isolated post-plant positions where Killjoy's kit advantages become decisive. For Killjoy, recognize your post-plant strength and play confidently for spike after successful takes.
Defense Side Breakdown
Killjoy demonstrates notably stronger defensive performance against Viper, holding 54.9% of rounds versus 51.5%. This 3.5 point advantage represents meaningful tactical superiority that should influence how both agents approach CT-side play in this matchup.
Site anchor assignments should account for Killjoy's defensive advantage. Killjoy can confidently solo anchor sites, knowing their kit enables effective stalling and information gathering. Viper should avoid solo anchor positions against Killjoy — instead, pair with a teammate who can provide support utility, or play positions that allow quick rotates to avoid extended 1v1 holds. When attackers target Viper's site with Killjoy on the execute, expect faster site falls.
Retake scenarios meaningfully favor Killjoy in this matchup. Our 9 match analysis shows Killjoy converts retakes at a significantly higher rate, whether through better clearing utility, superior positioning, or stronger clutch mechanics. Viper should never attempt solo retakes against Killjoy — always wait for teammates, coordinate utility, and take the retake together. Killjoy can confidently take 1vX retakes that Viper should avoid.
Economy rounds highlight Killjoy's defensive advantages. Viper should prioritize full saves over force buys when facing Killjoy, as the defensive utility gap compounds on limited economy. Killjoy can play more aggressively on eco rounds, pushing for information or early picks knowing their kit provides advantages even without full utility. On full buy rounds, Viper should ensure teammate utility covers their defensive gaps.
Overall Side Analysis
Killjoy holds clear advantages on both attack (48.5%) and defense (54.9%), establishing themselves as the superior choice in the Killjoy vs Viper matchup regardless of map side. This consistency across both halves means Killjoy doesn't need to play for specific sides or rely on winning a particular half to succeed.
Killjoy's advantage holds across all map types and team compositions. Whether on attack-sided, defense-sided, or balanced maps, Killjoy performs better. Viper teams should consider compositions that can cover their weaknesses — pair Viper with strong fragging agents who can carry during their difficult matchup encounters, and ensure utility supports Viper's positioning.
For ranked climbing specifically, Killjoy is the objectively better pick in this matchup. If you're equally comfortable on both agents and frequently face this matchup, practicing Killjoy provides a measurable ranked advantage. Viper players should focus on team play, utility value, and avoiding direct Killjoy confrontations rather than trying to outfrag them.
The verdict is clear: Killjoy wins this matchup on both sides of the map. The combined 7.0 percentage point advantage across attack and defense represents a meaningful statistical edge. Viper isn't unplayable, but faces an uphill battle requiring stronger team support and more disciplined play to compete.
Sentinel vs Controller Dynamics
The Sentinel (Killjoy) vs Controller (Viper) dynamic creates asymmetric encounters where each agent brings fundamentally different tools to engagements. Killjoy's Sentinel abilities serve different purposes than Viper's Controller kit, meaning direct fights often feature non-equivalent utility exchanges.
Understanding how Sentinel abilities interact with Controller counterplay is essential for maximizing your agent's potential. Killjoy's Sentinel toolkit may excel at certain aspects while Viper's Controller kit counters others. The Killjoy advantage suggests their role's capabilities translate better to winning these cross-role encounters on average.
Killjoy vs Viper matchup breakdown: Killjoy dominates with a 55.6% win rate across 9 matches. Higher damage output (143 ADR) gives Killjoy a clear edge. See attack/defense stats and combat analysis.
