Undermine Stats & Draft Guide
Undermine is a Gem Grab map with 1,154 Ranked battles of top players in the last 21 days. The best measured pick right now is Mortis at 56% over 278 matches. Below: who wins here, who is safe to pick early, who to keep for later and who to avoid, each with the matches behind the number.
- Ranked battles
- 1,154 · last 21 days
- In Ranked rotation
- Yes · last battle 2026-11-15
- Best measured pick
- Mortis · 56% over 278 matches
- Most picked
- Rico · in 50% of battles
What the data says about Undermine
Over the last 21 days we counted 1,154 Ranked battles of top players on Undermine. 43 brawlers have at least 30 matches here, so they get a win rate; 55 more were picked too rarely to judge. The map is in the current Ranked rotation (last battle 2026-11-15).
Counted from Ranked matches of top players over the last 21 days, last updated 2026-11-15. Matches played before the latest balance change count for less. A brawler needs at least 30 matches on this map before we show a win rate.
Best Brawlers on Undermine by win rate
The strongest measured pick on Undermine is Mortis: 56% over 278 matches (reliable), picked in 24% of battles, 7 points above its Gem Grab average of 49%. Lou (55%), Tara (56%) combine a winning record here with a high blind-pick safety, so they are the safest early picks. Mortis (56%), Edgar (58%), Ash (55%) win here too but are easy to counter: keep them for a late pick. Colette (49% over 165 matches), Rico (49% over 457 matches), Stu (48% over 202 matches) are among the most picked brawlers here yet lose more than they win.
| Brawler | Win rate on Undermine | Matches | How sure | Picked in | vs Gem Grab | Draft verdict |
|---|---|---|---|---|---|---|
| Mortis assassin | 56% | 278 | reliable | 24% of battles | +7 pts | strong, pick late |
| Lumi fighter | 60% | 68 | early signal | 6% of battles | +10 pts | promising |
| Mina fighter | 58% | 98 | fairly reliable | 8% of battles | +5 pts | strong pick |
| Janet marksman | 62% | 45 | early signal | 5% of battles | +10 pts | promising |
| Edgar assassin | 58% | 88 | fairly reliable | 8% of battles | +6 pts | strong, pick late |
| Amber fighter | 55% | 262 | reliable | 27% of battles | +3 pts | strong pick |
| Ruffs support | 61% | 36 | early signal | 3% of battles | +12 pts | promising |
| Ash tank | 55% | 126 | fairly reliable | 16% of battles | +1 pts | strong, pick late |
| Pearl fighter | 55% | 153 | fairly reliable | 13% of battles | +5 pts | strong pick |
| Lou controller | 55% | 121 | fairly reliable | 11% of battles | 0 pts | safe early pick |
| Tara support | 56% | 91 | fairly reliable | 8% of battles | 0 pts | safe early pick |
| Carl fighter | 58% | 45 | early signal | 4% of battles | +10 pts | promising |
Showing the 12 strongest of 43 measured brawlers. "Picked in" is the share of Undermine battles with the brawler on either team. "vs Gem Grab" is the win rate here minus the same brawler's win rate across all Gem Grab maps.
Safe picks and risky picks on Undermine
Safe means winning here with a good sample and hard to punish when picked blind; risky means the numbers say it loses, or it wins but is easy to counter once the enemy sees it. The pick-order guide explains when to lock what.
Safe early picks
Winning record, a fairly reliable sample or better, and a blind-pick safety of at least 6/10 in the coaching model.
Strong, but keep for a late pick
Win here but are easy to counter: lock them in once the enemy draft is visible, after checking which counters are still open.
- Mortis — 56% over 278 matches (reliable), picked in 24% of battles, 7 points above its Gem Grab average of 49%. Blind-pick safety 4/10.
- Edgar — 58% over 88 matches (fairly reliable), picked in 8% of battles, 6 points above its Gem Grab average of 51%. Blind-pick safety 4/10.
- Ash — 55% over 126 matches (fairly reliable), picked in 16% of battles, in line with its Gem Grab average. Blind-pick safety 4/10.
Also winning here
Winning record without a strong pick-order signal, or with a sample that is still small.
- Lumi — 60% over 68 matches (early signal), picked in 6% of battles, 10 points above its Gem Grab average of 50%. Blind-pick safety 5/10.
- Mina — 58% over 98 matches (fairly reliable), picked in 8% of battles, 5 points above its Gem Grab average of 53%. Blind-pick safety 5/10.
- Janet — 62% over 45 matches (early signal), picked in 5% of battles, 10 points above its Gem Grab average of 53%. Blind-pick safety 5/10.
- Amber — 55% over 262 matches (reliable), picked in 27% of battles, 3 points above its Gem Grab average of 52%. Blind-pick safety 5/10.
- Ruffs — 61% over 36 matches (early signal), picked in 3% of battles, 12 points above its Gem Grab average of 49%. Blind-pick safety 4/10.
- Pearl — 55% over 153 matches (fairly reliable), picked in 13% of battles, 5 points above its Gem Grab average of 50%. Blind-pick safety 5/10.
5 more measured brawlers carry this verdict on this map; only the strongest 6 are listed.
Popular but losing
Among the 8 most picked brawlers on Undermine, yet losing more than winning.
- Colette — 49% over 165 matches (fairly reliable), picked in 21% of battles, 2 points above its Gem Grab average of 47%. Blind-pick safety 6/10.
- Rico — 49% over 457 matches (reliable), picked in 50% of battles, 2 points above its Gem Grab average of 47%. Blind-pick safety 6/10.
- Stu — 48% over 202 matches (reliable), picked in 24% of battles, 3 points below its Gem Grab average of 51%. Blind-pick safety 6/10.
- Chester — 47% over 256 matches (reliable), picked in 24% of battles, 2 points below its Gem Grab average of 49%. Blind-pick safety 6/10.
- Spike — 47% over 247 matches (reliable), picked in 21% of battles, 2 points below its Gem Grab average of 49%. Blind-pick safety 6/10.
- Gus — 46% over 196 matches (fairly reliable), picked in 33% of battles, in line with its Gem Grab average. Blind-pick safety 7/10.
Map effect: who changes on Undermine
A gap of 4 points or more to the brawler's own Gem Grab average, with at least 30 matches on both sides. Compare with the live tier list: a modest overall tier can hide a Undermine specialist.
Better here than in Gem Grab overall
The Undermine specialists.
- Ruffs — 61% over 36 matches (early signal), picked in 3% of battles, 12 points above its Gem Grab average of 49%. Blind-pick safety 4/10.
- Pierce — 56% over 32 matches (early signal), picked in 4% of battles, 11 points above its Gem Grab average of 45%. Blind-pick safety 5/10.
- Carl — 58% over 45 matches (early signal), picked in 4% of battles, 10 points above its Gem Grab average of 48%. Blind-pick safety 6/10.
- Lumi — 60% over 68 matches (early signal), picked in 6% of battles, 10 points above its Gem Grab average of 50%. Blind-pick safety 5/10.
- Janet — 62% over 45 matches (early signal), picked in 5% of battles, 10 points above its Gem Grab average of 53%. Blind-pick safety 5/10.
- Mortis — 56% over 278 matches (reliable), picked in 24% of battles, 7 points above its Gem Grab average of 49%. Blind-pick safety 4/10.
Worse here than in Gem Grab overall
This layout works against them.
- Nori — 34% over 43 matches (early signal), picked in 5% of battles, 11 points below its Gem Grab average of 45%. Blind-pick safety 5/10.
- Surge — 47% over 76 matches (early signal), picked in 12% of battles, 11 points below its Gem Grab average of 58%. Blind-pick safety 6/10.
- Shade — 42% over 38 matches (early signal), picked in 10% of battles, 8 points below its Gem Grab average of 50%. Blind-pick safety 5/10.
- Mr. P — 52% over 168 matches (fairly reliable), picked in 15% of battles, 7 points below its Gem Grab average of 59%. Blind-pick safety 6/10.
- Emz — 46% over 225 matches (reliable), picked in 19% of battles, 7 points below its Gem Grab average of 52%. Blind-pick safety 6/10.
- El Primo — 48% over 60 matches (early signal), picked in 5% of battles, 6 points below its Gem Grab average of 55%. Blind-pick safety 5/10.
Brawlers to avoid on Undermine
Clearly losing records on Undermine; the match count says how much weight to give each one.
- Nori — 34% over 43 matches (early signal), picked in 5% of battles.
- Vince — 44% over 105 matches (fairly reliable), picked in 9% of battles.
- Emz — 46% over 225 matches (reliable), picked in 19% of battles.
- Gigi — 39% over 33 matches (early signal), picked in 3% of battles.
- Shade — 42% over 38 matches (early signal), picked in 10% of battles.
- Rosa — 42% over 31 matches (early signal), picked in 3% of battles.
Which roles win on Undermine
The best performing role on Undermine is fighter: 51% over 1,957 matches. The weakest is sharpshooter at 48% over 743 matches.
| Role | Win rate on Undermine | Matches | How sure | vs Gem Grab |
|---|---|---|---|---|
| fighter | 51% | 1,957 | reliable | +1 pts |
| controller | 51% | 745 | reliable | -3 pts |
| assassin | 50% | 926 | reliable | 0 pts |
| thrower | 50% | 138 | fairly reliable | +5 pts |
| tank | 49% | 280 | reliable | -3 pts |
| support | 49% | 484 | reliable | +1 pts |
| marksman | 48% | 388 | reliable | 0 pts |
| sharpshooter | 48% | 743 | reliable | +1 pts |
Roles are the coaching model's class per brawler.
Most picked on Undermine
How often top players take a brawler onto Undermine, and how it went. Popular is not the same as good.
- Rico — picked in 50% of battles, 49% over 457 matches (reliable) (popular but losing).
- Gus — picked in 33% of battles, 46% over 196 matches (fairly reliable) (popular but losing).
- Amber — picked in 27% of battles, 55% over 262 matches (reliable) (strong pick).
- Mortis — picked in 24% of battles, 56% over 278 matches (reliable) (strong, pick late).
- Stu — picked in 24% of battles, 48% over 202 matches (reliable) (popular but losing).
- Chester — picked in 24% of battles, 47% over 256 matches (reliable) (popular but losing).
- Spike — picked in 21% of battles, 47% over 247 matches (reliable) (popular but losing).
- Colette — picked in 21% of battles, 49% over 165 matches (fairly reliable) (popular but losing).
How to read these numbers
A win rate only means something when enough matches sit behind it. Next to every number we say how sure we are:
- reliable — 200 matches or more: a solid basis for a verdict.
- fairly reliable — 80 to 199 matches: enough to spot a real pattern.
- early signal — 30 to 79 matches: a hint, not a verdict.
- too few matches — fewer than 30 matches, so we do not show a win rate yet.
A 60% win rate over 40 matches can easily be luck; a 54% win rate over 800 matches is a real edge. Brawlers with fewer than 30 matches are listed without a win rate on purpose.
The coaches' view on Undermine
The coaching model's view of the mixed layout of Undermine, next to the measured numbers above. When the two disagree, trust the one with more matches behind it.
Coaches' early picks: Gene, Tara combine a positive map fit with high blind-pick safety.
Coaches' later picks: Spike fit the map but are easier to counter, so keep them for the middle or last pick.
Mode context
Undermine is a Gem Grab map. Read the mode guide for the win condition and role requirements, then apply the map-specific picks above.
Other Gem Grab maps
Same mode, different layout. Compare before you build your Gem Grab pool, or start from the Gem Grab mode guide.
Hard Rock MineGem Grab · open layout · picks and win rates
Double SwooshGem Grab · mixed layout · picks and win rates
Gem FortGem Grab · closed layout · picks and win rates
Rustic ArcadeGem Grab · mixed layout · picks and win rates
Crystal ArcadeGem Grab · limited data
On a RollGem Grab · limited data
Whisper ValeGem Grab · limited data
Let Me DanceGem Grab · limited dataRavenous RapidsGem Grab · limited dataDon't Leaf MeGem Grab · limited data
Bottom TwoGem Grab · limited dataEmotional DetachmentGem Grab · limited data
Dungeon TrainGem Grab · limited data
Deathcap TrapGem Grab · limited data
Local RestaurantsGem Grab · limited dataStardust StormGem Grab · limited data
Open SpaceGem Grab · limited data
PicturesqueGem Grab · limited data
Lilygear LakeGem Grab · limited dataSapphire PlainsGem Grab · limited dataThe cooler Hard RockGem Grab · limited dataRoyal FlushGem Grab · limited dataDeep DinerGem Grab · limited dataEscape VelocityGem Grab · limited data
Ancestral RootsGem Grab · limited data
Snake PitGem Grab · limited dataFour SquaredGem Grab · limited dataData confidence
The measured numbers on this page come from 1,154 Ranked battles of top players on Undermine in the last 21 days. 12 brawlers have enough matches here to show a win rate; 55 more were picked too rarely. Matches played before the latest balance change count for less, and no win rate is shown below 30 matches.