Undermine (Gem Grab): 15,826 trophy and Ranked battles were counted on this map, 0.00% of them were draws, the average game lasted 105.3 seconds, the cache saw it on 107 days since 18 May 2026. Checked 2026-10-19; picks are counted, win rates are being measured (gate G-M).
On this map2026-10-16 · Last day the counted cache saw this map in rotation.2024-02-27 · Wiki status: active on its last change.2026-09-16 · Counted window starts at the 16 Sep 2026 balance patch.
Gem Grab · 100 brawlers counted
In the game · wiki 2024-02-27 · checked 2026-10-19
In the Season 50 Ranked pool — the rotation panel below counts its battles.
Our drawing of what Gem Grab asks for — not the in-game map, and no tile counts.
This is the counted order, not a “best” claim: win rates are being measured (gate G-M).
Window
Queue
Row order
Queues are never mixed. Trophy and Ranked win rates are being measured (gate G-M); the rows below show the counted games.
About this dataWindow Rotation · 2026-05-18–2026-10-16Played in Gem Grab · how the mode plays22 weeks · 16,342 battles · 7,092 ranked battles all-timeEvery week the cache saw this map since 18 May 2026 (M10 buckets).Ranked (solo) battles of the global top 49601 trophy players · 2026-09-16–2026-10-16 · n = 197495 battles · Preview sampleCollected 2026-10-19 · checked 2026-10-19 · win rates are being measured (gate G-M).
16,342Battles · Rotation
0.00%Draw share · since the 16 Sep patch
100Brawlers with a counted row
≥ 300Decided battles a map needs for a page
How these four numbers were counted
Battles by queue:Recent battles of the global top 49601 trophy players · 2026-09-16–2026-10-16 · n = 8,734 battles · Preview sample
Ranked battles on this map:Ranked (solo) battles of the global top 49601 trophy players · 2026-09-16–2026-10-16 · n = 7,092 battles · Preview sample
Picks and decided games per brawler:GamGem calculation from BS_MATCH_MAPS + BS_MATCH_SHARE
Most-faced opponent per pick:GamGem calculation from BS_MATCH_VS
Picks · Rotationtrophy and Ranked counted together
Window 2026-05-18–2026-10-16 · 22 weeks · 16,342 battles. Win rate, share of picks and adjusted win rate are being measured (gate G-M); this table shows the counted games.
Battles counted here: 3,725Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 3,720Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 3,125Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 2,891Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 2,790Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 2,720Window: the one chosen above · trophy and Ranked togetherClass: SupportWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 2,570Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 2,414Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 2,000Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,757Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,756Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,700Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,700Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,589Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,550Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,537Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,529Window: the one chosen above · trophy and Ranked togetherClass: MarksmanWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,406Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,297Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,284Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,268Window: the one chosen above · trophy and Ranked togetherClass: ArtilleryWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,240Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,228Window: the one chosen above · trophy and Ranked togetherClass: SupportWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,226Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,123Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,110Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,094Window: the one chosen above · trophy and Ranked togetherClass: SupportWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,064Window: the one chosen above · trophy and Ranked togetherClass: SupportWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,058Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 1,048Window: the one chosen above · trophy and Ranked togetherClass: SupportWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 987Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 953Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 927Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 894Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 869Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 840Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 822Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 818Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 804Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 775Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 772Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 735Window: the one chosen above · trophy and Ranked togetherClass: ArtilleryWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 686Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 663Window: the one chosen above · trophy and Ranked togetherClass: MarksmanWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 644Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 638Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 632Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 630Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 627Window: the one chosen above · trophy and Ranked togetherClass: Damage DealerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 619Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 598Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 585Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 570Window: the one chosen above · trophy and Ranked togetherClass: AssassinWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 567Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 550Window: the one chosen above · trophy and Ranked togetherClass: MarksmanWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 542Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 537Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 530Window: the one chosen above · trophy and Ranked togetherClass: ControllerWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 510Window: the one chosen above · trophy and Ranked togetherClass: MarksmanWin rate, share of picks, adjusted: Being measured (gate G-M)
Battles counted here: 506Window: the one chosen above · trophy and Ranked togetherClass: TankWin rate, share of picks, adjusted: Being measured (gate G-M)
Stops the tankEdgar37,630 games vs TankWin rate: Being measured
Checks the diveRico57,346 games vs AssassinWin rate: Being measured
Answers the long laneGus30,287 games vs MarksmanWin rate: Being measured
Breaks the supportMortis28,192 games vs SupportWin rate: Being measured
Each row is one of this map’s most-played picks that has met that class the most on all maps counted; one brawler is named once. Win rates against the class are being measured (gate G-M).
GamGem calculation from BS_MATCH_VSGamGem calculation from BS_MATCHX_CLASS_VS + BS_WIKI_BRAWLERS
Best counted trios
No three-brawler team cleared the 25-game floor on each side of this map yet. Build one from the most-played picks above in the draft tool.
GamGem calculation from BS_MATCH_COMPS
Lane assignments
Control the mine in the middle and hold the gems together: the carrier is the fight, not the gem.
Left laneRico — skirmish: trade hits and finish the low target
MidMortis — dive: wait for the cooldown, then take the back line
Right laneBo — zone: deny the bush and the choke
GamGem editorial — not measured
Map fingerprint
Draw share0.00%
Top-5 pick share20.7%
Average length105.3s
15,985 team battles since 16 Sep 2026 · 0 draws · duration from 11,817 timed games.
Star-player share by class — Being measured (M6, gate G-M).
0–5sBoth side lanes step in; the carrier stays behind the mid wall.
5–10sTake mid bushes first, then let the carrier collect.
10–15sPush the enemy side bush so the mine stays yours.
15–20sAt a lead, spread out and make them come to you.
Comeback: Kill the carrier, then collect as one group — do not trickle back one by one.
Editorial — our reading of the mode, not a measured figure.GamGem editorial — not measured
Last rotation vs now
Now: 2026-06-02 → 2026-10-16 · 16,189 battles · seen on 107 daysBefore: 2026-09-21 → 2026-10-01 · 153 battles · 7 days seen · 0 days between the two appearances
GamGem calculation from BS_MATCHX_ROTATION + BS_MATCHX_SAMPLEGamGem calculation from BS_MATCHX_RANKED_POOL
Data checks
Wiki says active, last change 2024-02-27.Sourced
Season 50 Ranked pool: 5586 counted battles.Counted
Fingerprint above its floor: draw share and length are printed.Counted
Win rate, share of picks and adjusted win rate come from gate G-M.Being measured
Star-player share by class (M6) is not in the fixtures this page reads.Being measured
The schematic is our drawing, not the in-game map; no tile counts exist.Editorial
Status words describe our check, not the game’s own state.
Draft rehearsal
Tap brawlers for your trio (3) and the enemy (up to 3). Coverage uses counted matchups from all maps; win rates are being measured.
You: —
Enemy: —
Pick your trio and the likely enemy: the check uses counted matchups from all maps.
First pickMortis · 3,725 gamesSecondRico · 3,720 gamesLast pickBo · third by counted games
Share card
GamGem · Undermine · Gem Grab · Ranked
Window: Rotation (2026-05-18–2026-10-16) · 16,342 battles in 22 weeks
Most played here: Mortis 3,725 · Rico 3,720 · Bo 3,125
Your trio: — · Enemy: —
Draws 0.00% · average 105.3s
Schematic is a GamGem drawing, not the in-game map.
Sources (13)
What
Source
Date
How we count
Battles by queue
Recent battles of the global top 49601 trophy players · 2026-09-16–2026-10-16 · n = 8,734 battles · Preview sample
2026-10-19
Collected 2026-10-19
Ranked battles on this map
Ranked (solo) battles of the global top 49601 trophy players · 2026-09-16–2026-10-16 · n = 7,092 battles · Preview sample
2026-10-19
Collected 2026-10-19
Picks and decided games per brawler
GamGem calculation from BS_MATCH_MAPS + BS_MATCH_SHARE
—
Decided games summed per brawler over this map’s event ids, trophy and Ranked together; mirrors out. Win rate and share of picks wait for gate G-M.
Most-faced opponent per pick
GamGem calculation from BS_MATCH_VS
—
The opposing brawler with the most decided games against it, all maps together; the win-rate edge waits for gate G-M.
Counted trios
GamGem calculation from BS_MATCH_COMPS
—
Three-brawler teams with decided games on this map, most-counted first; their win rates wait for gate G-M.
Rotation history and weekly buckets
GamGem calculation from BS_MATCHX_ROTATION + BS_MATCHX_SAMPLE
—
First and last day the cache saw each event id, days seen, and battles per Monday-start week.
Ranked pool per season
GamGem calculation from BS_MATCHX_RANKED_POOL
—
Battles counted per Round season and event id; a row seen only in the season’s first six hours is marked as an edge.
Map fingerprint and twins
GamGem calculation from BS_MATCHX_MAP_SHAPE
—
Draw share and top-5 pick concentration since the 16 Sep 2026 patch; duration from the v2 duration field; twins = Jaccard of the top-10 picks in the same mode.
Brawlers that meet a class
GamGem calculation from BS_MATCHX_CLASS_VS + BS_WIKI_BRAWLERS
—
Each non-mirrored brawler counted against every opposing class; the wiki infobox supplies the class.
Official Brawl Stars API · /v1/gamemodes · 2026-10-19
2026-10-19
Lanes, first 20 s, comeback
GamGem editorial — not measured
—
GamGem reading of the mode; it measures nothing and prints no number.
Page views here are counted without cookies. Allowing them lets Google Analytics tell a returning reader from a new one — that is the only difference. We also count visits anonymously, with no cookie or ID (turn off). Nothing is sold and no advertising profile is built. What we collect
Mortis3,725 decided gamesAssassinMost playedWin rateBeing measured
Rico3,720 decided gamesDamage DealerSecond mostWin rateBeing measured
Bo3,125 decided gamesControllerThird mostWin rateBeing measured
Mortis
Rico
Bo
Griff
Edgar
Gus
Emz
Surge
Colette
Crow
Amber
Stu
Shade
Colt
Tara
Pearl
Brock
Bibi
Sirius
Ash
Tick
Fang
Max
Leon
Spike
El Primo
Byron
Poco
Chester
Wendy
Mina
Jessie
8-Bit
Bull
Carl
Nori
Lily
Buzz
Kenji
Alli
Starr Nova
Dynamike
Otis
Piper
Sandy
Shelly
Clancy
Bolt
Nita
Cosmo
Penny
Squeak
Cordelius
Rosa
Janet
Meg
Frank
Meeple
Maisie
Darryl
Mortis
Rico
Bo
Griff
Edgar