BO

Who is BO

BO is a brawler of Epic rarity, class Controller. This article summarizes their performance in the current competitive meta: best map, hardest counters, and the weekly trend of their win rate. The numbers come from top-PRO battles over the last 90 days, Bayesian-smoothed so a brawler with a small sample doesn't show a misleading percentage.

Over the 30-day window, BO has shown up in 1,062 battles with a global win rate of 70.4%. That window belongs to the figure itself and is shorter than the one feeding the rest of the page, because a win rate needs recent data so it doesn't drag along a meta that already moved on.

Across the full 90 days, BO has a pick rate of 0.6%. That pick rate is the share of matches where a top-PRO player chose BO out of every available brawler, so it works as a thermometer for how meta they are right now. It uses the long window on purpose, because a brawler's popularity shifts more slowly than their win rate.

Across the full roster, BO's trend is among the strongest: their win rate is climbing faster than 93% of brawlers with a measurable trend this week. When a brawler rises this fast it's usually because maps or modes rotated in where their kit fits better than average.

The two figures for BO tell different things. The observed win rate, 70.4%, measures how often it wins in the hands of a top 200 player from its country. The discounted strength, 45.6%, estimates how often it would win against a mid-level opponent once the mix of opponents it happened to face is discounted. The first one orders the lists across the site and the second sits beside it, as context.

By discounted strength, BO takes rank 73 of 107, in the bottom third of the roster. Its observed win rate leans in part on the opponents it happened to face, so read it together with the specific map and mode.

BO is an Epic brawler, a rarity where kits start to break conventions: unique mechanics, supers with special effects and gadgets that flip the whole game plan. The gem or Starr Drop investment is steeper, but in return you get a tool that defines entire lanes in draft and tends to be picked in tournaments whenever its signature map enters rotation.

As a Controller, the priority is dictating where the enemy team can and cannot stand. Through slows, knockbacks, persistent damage zones or supers that close routes, the brawler forces the rival to play on its team's terms. It stands out in positioning and tempo rather than in kills. If it controls the key area of the map, the team wins without needing direct fights.

Best maps for BO

The best map for BO is Net Presence in Brawl Hockey, with a Bayesian-adjusted win rate of 81.8% over 50 battles. That puts them above their class average in this mode, so it's worth picking BO when that rotation is live. A strong run on Net Presence usually combines favorable geometry (short ranges or cover) and a mode whose objective plays into the brawler's kit.

BO's performance is highly map-dependent: there are 18.2 percentage points between their best and worst map. That high variance means it pays to check the rotation before locking them in, because the same brawler swings from one of the best options to a clearly unfavorable pick depending on the map.

As a second map option, BO also performs well on Super Center (Brawl Hockey) with a 80.3% win rate, only 1.5 points off their best map. When the gap between the top two maps is this small, picking one over the other comes down to the enemy team more than the brawler itself.

Rounding out the podium, BO holds a 80.0% win rate on Watermelons (Bounty) over 38 battles. Having three competitive maps widens the rotation windows worth bringing them in for, not just their signature map.

Just above their worst result, BO also struggles on Double Swoosh, where their win rate sits at 63.8%. Keep this map on your radar as a second warning sign when deciding the pick.

On the opposite end, Open Space (Gem Grab) drops BO's win rate to 63.6%. That's the bottom tail of a 18.2-point range between their best and worst map, so if that rotation comes up during a session, consider a different brawler to avoid throwing matches.

Counters and matchups

BO clearly dominates the matchup against CROW: across the 43 recorded battles for that pairing, their win rate climbs to 84.1%. If you spot CROW on the enemy team in draft, that lane is an edge for BO — seek the duel out rather than avoid it.

Their second-best matchup is against SPIKE, where BO holds a 81.2% win rate over 37 battles. Two strong favorable counters like these give BO real value as a targeted pick against comps that lean on those two brawlers.

Where BO has a clear disadvantage is against GUS: their win rate drops to 58.4% across the 130 battles recorded for that matchup. If GUS shows up on the enemy team, consider not picking BO or changing the game plan to avoid the shared lane, because GUS wins that exchange.

Per-brawler matchups are the smallest-sample metric on the page: for BO the samples range from 37 to 130 battles. Read them with the confidence that sample implies — a matchup at the low end says far less than one backed by the high one.

This section lists the matchups where BO performs worst and best over the last 30 days, sampled from top PRO players and smoothed with Bayesian WR to avoid noise.

Read each row left to right: brawler, win rate vs BO, and battle sample. The larger the sample, the more reliable the number.

Loses most against

Brawler	WR	Battles
GUS	58.4%	130
SHADE	61.4%	75
AMBER	61.6%	81
EL PRIMO	62.3%	99
WENDY	64.0%	41

Dominates

Brawler	WR	Battles
CROW	84.1%	43
SPIKE	81.2%	37
GRIFF	78.0%	109
RICO	76.7%	84
SURGE	76.2%	69

Star Powers, Gadgets and Hypercharge

To get the most out of BO in the current meta, prioritize upgrades by synergy with their kit, not by gem cost. Star powers, gadgets and hypercharge change tiers depending on the meta, so the upgrade priority is dynamic.

As a general rule, the first profitable upgrade for BO is usually the star power with the highest pick rate in PRO tournaments, followed by the gadget that best fits their role (lane, support, or pick). Hypercharge, when it exists, comes last because it costs more Coins and Power Points and only triggers with a full super bar.

By game mode, BO performs best in Gem Grab, with a 67.7% win rate over 820 battles — the mode with the most recorded sample for this brawler. That makes Gem Grab the context where their performance is most reliable and where investing in upgrades pays off most clearly.

Beyond the immediate meta, the upgrade path for BO should prioritize what moves the win rate needle the most: power 11 before gears, first star power before second, primary gadget before any hypercharge. Hypercharges cost a lot of coins and power points and only activate with a full super bar, so their real priority drops toward the end of the checklist.

Weekly meta analysis

Over the last 7 days, BO's win rate moved from 66.6% to 75.7%, a climb of +9.1 points versus the previous half of the window. Since each half clears the 3-battle minimum, that move isn't noise: it reflects the meta shifting in BO's favor, usually from a rotation of maps or modes where they perform better.

Compared with the rest of the roster, that move puts BO climbing faster than 93% of brawlers with a measurable trend this week — they're at the top end of the risers. When a brawler lands in that band it's often a good moment to invest in their upgrades before a possible nerf arrives.

Every percentage on the BO page comes from real battles played by the world's top players, aggregated with statistical smoothing and recomputed every six hours. If you want to understand why one map performs better than another or how a rotation affects the win rate, the methodology page covers the technical detail step by step.