It is time to make those tough lineup decisions for Week 6 of the fantasy football season.

Below, you’ll find positional rankings, player analysis, team totals and spreads for every game on the slate.

Notes: 

  • Players are now tiered across all positions (RB, WR and TE) to help with flex decisions in larger formats. Because of this, TEs might not have a player deserving of Tier 1 compared to RBs and WRs.
  • Defensive yards and TDs allowed exclude overtime play.

Last updated: 2:30 p.m. Oct. 12. Please refer to our Rankings page for updates!

Quarterback Rankings & Tiers - Week 6

RankTierPlayerTeamPosOppTeam TotalSpreadPPG
11Patrick MahomesKCQBDEN29.00-11.020.6
21Josh AllenBUFQBNYG29.25-14.025.1
32Jalen HurtsPHIQBNYJ24.00-7.023.0
42Tua TagovailoaMIAQBCAR31.00-13.521.0
52Justin FieldsCHIQBMIN20.502.521.9
62Lamar JacksonBALQBTEN22.75-4.020.9
72Joe BurrowCINQBSEA24.00-3.012.0
83Justin HerbertLACQBDAL24.252.023.7
93Trevor LawrenceJAXQBIND24.75-4.016.3
103Kirk CousinsMINQBCHI23.00-2.522.0
113Matthew StaffordLARQBARI27.75-7.015.6
123Russell WilsonDENQBKC18.0011.020.4
134Jared GoffDETQBTB22.75-3.019.4
144Geno SmithSEAQBCIN21.003.014.0
154Brock PurdySFQBCLE22.25-7.021.8
164C.J. StroudHOUQBNO20.751.018.5
175Dak PrescottDALQBLAC26.25-2.012.6
185Sam HowellWASQBATL20.002.517.6
195Baker MayfieldTBQBDET19.753.017.0
205Deshaun WatsonCLEQBSF15.257.018.5
216Joshua DobbsARIQBLAR20.757.016.2
226Gardner MinshewINDQBJAX20.754.07.6
236Desmond RidderATLQBWAS22.50-2.514.8
246Bryce YoungCARQBMIA17.5013.513.1
256Jimmy GaroppoloLVQBNE22.25-3.014.0
267Derek CarrNOQBHOU21.75-1.010.5
277Daniel JonesNYGQBBUF15.2514.012.7
287Zach WilsonNYJQBPHI17.007.011.1
297Mac JonesNEQBLV19.253.012.1
307Ryan TannehillTENQBBAL18.754.011.0

Tier 3 – Matthew Stafford

Stafford only averages 15.6 points per game, but his underlying data tells us that won’t last long. The veteran is surrounded by one of the better WR duos in the NFL with Cooper Kupp and Puka NacuaTutu Atwell has taken over the No. 3 role and offers the big-play upside that can unlock large passing totals.

Given how well that trio has played, it makes sense that the Rams offense is a much more pass-heavy unit than what we saw in 2023. Their 6% dropback rate over expectation (DBOE) ranks fifth in the NFL, and if that isn’t enough, they run more plays per minute than most other teams. Their plays per minute over expectation (PPMOE) ranks seventh.

Stafford & Co. carry the fourth-best team total on the slate this weekend and have a juicy matchup against the Cardinals. Arizona allows the sixth-most yards and fifth-most TDs per game through the air. This might be the blowup game we have been waiting for with the veteran QB.

Stafford UPGRADES to low-end QB1 status and it just feels like a 300-plus yard and three-TD performance might be in the cards.

You can target Stafford on Underdog Fantasy this week and take advantage of a 100% deposit match of up to $500 (!!) when you sign up below with promo code LIFE!


Running Back Rankings & Tiers - Week 6

RankTierPlayerTeamPosOppTeam TotalSpreadPPG
11Christian McCaffreySFRBCLE22.25-7.024.0
21Raheem MostertMIARBCAR31.00-13.520.0
32David MontgomeryDETRBTB22.75-3.020.1
42Austin EkelerLACRBDAL24.252.024.4
52Tony PollardDALRBLAC26.25-2.013.0
62Travis Etienne Jr.JACRBIND24.750.016.2
72Kyren WilliamsLARRBARI27.75-7.016.6
82Kenneth Walker IIISEARBCIN21.003.017.4
92Bijan RobinsonATLRBWAS22.50-2.514.7
102Alvin KamaraNORBHOU21.75-1.016.1
112Josh JacobsLVRBNE22.25-3.013.2
122Joe MixonCINRBSEA24.00-3.010.7
133D'Andre SwiftPHIRBNYJ24.00-7.014.1
143Isiah PachecoKCRBDEN29.00-11.013.2
153James CookBUFRBNYG29.25-14.011.2
163Derrick HenryTENRBBAL18.754.012.7
173Saquon BarkleyNYGRBBUF15.2514.016.0
173Breece HallNYJRBPHI17.007.010.9
194Brian Robinson Jr.WASRBATL20.002.514.1
204Jonathan TaylorINDRBJAX20.754.03.9
215Rhamondre StevensonNERBLV19.253.07.9
225Alexander MattisonMINRBCHI23.00-2.510.8
235Rachaad WhiteTBRBDET19.753.010.4
245Dameon PierceHOURBNO20.751.08.7
255Roschon JohnsonCHIRBMIN20.502.55.9
265Jerome FordCLERBSF15.257.012.3
276Zack MossINDRBJAX20.754.019.9
286Miles SandersCARRBMIA17.5013.58.1
296Emari DemercadoARIRBLAR20.757.03.6
306Tyler AllgeierATLRBWAS22.50-2.57.5
316Javonte WilliamsDENRBKC18.0011.06.1
326D'Onta ForemanCHIRBMIN20.502.53.4
336Justice HillBALRBTEN22.75-4.08.9
346Jaleel McLaughlinDENRBKC18.0011.08.4
357Chuba HubbardCARRBMIA17.5013.55.4
367Gus EdwardsBALRBTEN22.75-4.06.2
377Tyjae SpearsTENRBBAL18.754.07.0
387Samaje PerineDENRBKC18.0011.06.4
397Ezekiel ElliottNERBLV19.253.05.3
407Keaontay IngramARIRBLAR20.757.00.9
417Zach CharbonnetSEARBCIN21.003.03.7
427Kenneth GainwellPHIRBNYJ24.00-7.05.2
437Jerick McKinnonKCRBDEN29.00-11.05.1
448Cam AkersMINRBCHI23.00-2.55.9
458Antonio GibsonWASRBATL20.002.54.9
468Kendre MillerNORBHOU21.75-1.05.4
478Joshua KelleyLACRBDAL24.252.06.9
488Latavius MurrayBUFRBNYG29.25-14.05.7
498Matt BreidaNYGRBBUF15.2514.05.0
508Devin SingletaryHOURBNO20.751.03.6
518Craig ReynoldsDETRBTB22.75-3.03.4
529Damien HarrisBUFRBNYG29.25-14.03.6
539Dalvin CookNYJRBPHI17.007.03.6
549Rico DowdleDALRBLAC26.25-2.04.6
559Kareem HuntCLERBSF15.257.02.9
569Tank BigsbyJACRBIND24.750.03.2
579Clyde Edwards-HelaireKCRBDEN29.00-11.04.1
589Jordan MasonSFRBCLE22.25-7.05.6
599Salvon AhmedMIARBCAR31.00-13.52.2
609Michael CarterNYJRBPHI17.007.02.4
619Ronnie RiversLARRBARI27.75-7.02.6
629Ameer AbdullahLVRBNE22.25-3.01.6
639Cordarrelle PattersonATLRBWAS22.50-2.50.6
649Ke'Shawn VaughnTBRBDET19.753.02.4
659Zamir WhiteLVRBNE22.25-3.01.2
669Chris BrooksMIARBCAR31.00-13.53.3
679Deuce VaughnDALRBLAC26.25-2.02.1

Tier 1 – Raheem Mostert

They say timing is everything, and the saying holds for Mostert in Week 6. With De’Von Achane placed on IR, the veteran speedster finds himself atop the Dolphins pecking order just in time for a matchup against a Panthers defense giving up the fifth-most rushing yards per game (141) in regulation play.

In the first two weeks of the season before Achane was a thing, Mostert handled over 70% of the snaps, 58% of rushing attempts and delivered 19.5 points per game.

Mostert


Jeff Wilson returned to practice on Wednesday but might not be ready to return in Week 6 — the Dolphins have 21 days to activate the veteran back. Even if Wilson does return, he probably won’t be prepared to take on his regular duties.

That leaves Salvon Ahmed and Chris Brooks as the primary challengers for at least one more week. In Weeks 1 and 2, Ahmed was a near non-factor with only 24% of snaps with six total rushing totes. We could see this duo salt away the fourth quarter if the Dolphins want to protect Mostert, but that also means Mostert probably already banked the fantasy points we crave.

While Achane’s blowup performances stole all the headlines, Mostert has been extremely efficient in his own right in 2023. 

  • 10-plus yard attempts: 17% (3rd out of 42 backs with at least 30 attempts)
  • Average yards after contact: 3.4 (9th)
  • Missed tackles forced per attempt: 26% (9th)
  • PFF Run Grade: 90.2 (2nd)

The Dolphins backfield has also been highly active in the passing game, with Mostert and Achane combining for 22 targets in a three-week period. Mostert should be in store for a 60%-plus route participation role, which means a healthy dose of targets is in the range of outcomes.

The Dolphins are nearly two TD favorites, and the Panthers allow the sixth-most rushing attempts per game (29). Opposing rushers have crushed Carolina for 24.9 points per contest – the second-most in the NFL.

No other team carries a higher team total than Miami’s 31 on the Week 6 slate. Every detail aligns in favor of Mostert being one of the best plays on the slate.

Mostert is a SMASH PLAY as my RB2 and a top-5 play overall.

Tier 2 – Kyren Williams

Williams can’t keep getting all the work for the Rams.

Williams might keep getting all the work for the Rams.

Williams will probably keep getting all the work for the Rams.

Yep. That is where we are at, but the industry continues to lag behind when ranking the Rams' workhorse back.

I understand. Saying Williams is a workhorse back isn’t natural, but that’s reality, and we should think of him that way until proven wrong. No other RB boasts a higher snap share in the NFL.

RB Usage


This weekend, the Rams offer the fourth-highest team total on the slate as seven-point favorites against a Cardinals defense that allows the third most rushing attempts per game. Arizona gives up 124 yards per game on the ground.

The Cardinals are one of the more zone-heavy units in the NFL, which is also good for Williams. Most NFL teams get their RBs more involved against zone coverage, and the Rams are no different — Williams’ TPRR jumps from 5% against man to 16% versus zone. This game offers multiple paths for the multi-dimensional back, who ranks No. 1 in route participation alongside Christian McCaffrey at 75%.

Williams is a SMASH play in Week 7 and is my No. 13 player overall.

Tier 3 – James Cook

The second-year back disappointed in the fantasy box score with only five points in Week 5, but his role remained unfazed. Cook registered a 63% snap share last week and is the No. 1 option in Buffalo for the season.

Utilization Comp


While we prefer Cook to distance further from Latavius Murray and Damien Harris, he averages 15.6 opportunities per game. In a high-scoring offense like Buffalo’s, that is a good number. In recent seasons, we have seen players like Austin EkelerAaron Jones and Tony Pollard average 15-plus points per game in similar roles.

In Week 6, the Bills face a Giants run defense surrendering the third-most fantasy points per game rushing. Opponents have blasted New York for the third-most yards (151) and second-most TDs (1.6) per contest.

And back to that quality offense qualifier — the Bills offer the second-highest team total on the Week 6 slate. You will rarely find a matchup where the season-long point differentials are as far apart as this one. The Bills have outscored their opponents by 79 points, and the Giants have been outscored by 91. Oh dear.

Cook is a top-30 option and has a chance to register a season-high in fantasy points.


Wide Receiver Rankings & Tiers - Week 6

RankTierPlayerTeamPosOppTeam TotalSpreadPPG
11Tyreek HillMIAWRCAR31.00-13.522.9
21Ja'Marr ChaseCINWRSEA24.00-3.017.6
31Stefon DiggsBUFWRNYG29.25-14.020.3
41Cooper KuppLARWRARI27.75-7.015.8
52Keenan AllenLACWRDAL24.252.021.4
62Davante AdamsLVWRNE22.25-3.016.1
72Puka NacuaLARWRARI27.75-7.018.5
82A.J. BrownPHIWRNYJ24.00-7.016.7
92CeeDee LambDALWRLAC26.25-2.011.5
102DJ MooreCHIWRMIN20.502.519.3
113Brandon AiyukSFWRCLE22.25-7.015.1
123Mike EvansTBWRDET19.753.015.4
133Adam ThielenCARWRMIA17.5013.515.4
143Amon-Ra St. BrownDETWRTB22.75-3.014.6
153Jaylen WaddleMIAWRLA31.00-13.59.7
163Calvin RidleyJACWRIND24.750.011.5
174Chris OlaveNOWRHOU21.75-1.010.1
184DK MetcalfSEAWRCIN21.003.012.0
194DeVonta SmithPHIWRNYJ24.00-7.010.5
204Michael Pittman Jr.INDWRJAX20.754.010.2
214Deebo SamuelSFWRCLE22.25-7.010.9
224Christian KirkJACWRIND24.750.011.0
234Nico CollinsHOUWRNO20.751.015.4
244Chris GodwinTBWRDET19.753.09.0
254Jakobi MeyersLVWRNE22.25-3.014.5
264Zay FlowersBALWRTEN22.75-4.09.5
274Jordan AddisonMINWRCHI23.00-2.510.5
284Garrett WilsonNYJWRPHI17.007.010.4
295DeAndre HopkinsTENWRBAL18.754.09.7
305Marquise BrownARIWRLAR20.757.012.7
315Gabe DavisBUFWRNYG29.25-14.013.0
325Tyler LockettSEAWRCIN21.003.09.1
335Terry McLaurinWASWRATL20.002.58.9
345Amari CooperCLEWRSF15.257.010.2
355Jerry JeudyDENWRKC18.0011.07.3
365Courtland SuttonDENWRKC18.0011.010.3
375Joshua PalmerLACWRDAL24.252.06.9
385Josh DownsINDWRJAX20.754.07.4
395Drake LondonATLWRWAS22.50-2.58.4
406Michael ThomasNOWRHOU21.75-1.08.3
416Tyler BoydCINWRSEA24.00-3.05.6
426Tutu AtwellLARWRARI27.75-7.010.9
436K.J. OsbornMINWRCHI23.00-2.57.0
446Elijah MooreCLEWRSF15.257.05.9
456Jahan DotsonWASWRATL20.002.55.7
466Curtis SamuelWASWRATL20.002.510.0
476Josh ReynoldsDETWRTB22.75-3.011.0
486DJ Chark Jr.CARWRMIA17.5013.58.5
497Quentin JohnstonLACWRDAL24.252.01.9
507Rashee RiceKCWRDEN29.00-11.07.5
517Robert WoodsHOUWRNO20.751.06.5
527Michael WilsonARIWRLAR20.757.09.0
537Wan'Dale RobinsonNYGWRBUF15.2514.05.2
547Rashid ShaheedNOWRHOU21.75-1.07.1
557Michael GallupDALWRLAC26.25-2.05.1
567Darnell MooneyCHIWRMIN20.502.54.1
577Kendrick BourneNEWRLV19.253.08.6
587Marvin Mims Jr.DENWRKC18.0011.07.4
597Brandin CooksDALWRLAC26.25-2.03.1
607Jaxon Smith-NjigbaSEAWRCIN21.003.03.1
617Rondale MooreARIWRLAR20.757.06.2
627Jonathan MingoCARWRMIA17.5013.54.4
637Allen LazardNYJWRPHI17.007.06.5
647Jameson WilliamsDETWRTB22.75-3.01.2
658Odell Beckham Jr.BALWRTEN22.75-4.03.8
667DeVante ParkerNEWRLV19.253.04.7
678Skyy MooreKCWRDEN29.00-11.05.0
688Darius SlaytonNYGWRBUF15.2514.04.6
698Kadarius ToneyKCWRDEN29.00-11.03.1
708Marquez Valdes-ScantlingKCWRDEN29.00-11.03.0
718Justin WatsonKCWRDEN29.00-11.05.4
728Nelson AgholorBALWRTEN22.75-4.06.0
738Trenton IrwinCINWRSEA24.00-3.03.1
748Nick Westbrook-IkhineTENWRBAL18.754.06.6
758Kalif RaymondDETWRTB22.75-3.06.6
768Braxton BerriosMIAWRCAR31.00-13.56.1
778Rashod BatemanBALWRTEN22.75-4.02.7
788Jalin HyattNYGWRBUF15.2514.02.4
798Brandon PowellMINWRCHI23.00-2.52.7
808Alec PierceINDWRJAX20.754.03.3
819Trey PalmerTBWRDET19.753.04.8
829Hunter RenfrowLVWRNE22.25-3.01.8
839Laviska Shenault Jr.CARWRMIA17.5013.52.0
849Brandon JohnsonDENWRKC18.0011.06.8
859Deonte HartyBUFWRNYG29.25-14.03.1
869Donovan Peoples-JonesCLEWRSF15.257.02.6
879Equanimeous St. BrownCHIWRMIN20.502.51.3
889Isaiah HodginsNYGWRBUF15.2514.04.3
899Dyami BrownWASWRATL20.002.52.3
909Chris MooreTENWRBAL18.754.03.1
919Trent SherfieldBUFWRNYG29.25-14.01.3
929Van JeffersonATLWRWAS22.50-2.53.1
939Randall CobbNYJWRPHI17.007.00.7
949Quez WatkinsPHIWRNYJ24.00-7.01.4
959Deven ThompkinsTBWRDET19.753.04.6
969Derius DavisLACWRDAL24.252.02.6
979KhaDarel HodgeATLWRWAS22.50-2.51.3
989Justyn RossKCWRDEN29.00-11.01.0
999Jalen TolbertDALWRLAC26.25-2.02.1
1009Jauan JenningsSFWRCLE22.25-7.03.2
1019Noah BrownHOUWRNO20.751.03.4
1029Chase ClaypoolMIAWRCAR31.00-13.54.4
1039Terrace Marshall Jr.CARWRMIA17.5013.54.8
1049Parris CampbellNYGWRBUF15.2514.03.3
1059John Metchie IIIHOUWRNO20.751.02.6
1069Marvin Jones Jr.DETWRTB22.75-3.01.0
1079Mack HollinsATLWRWAS22.50-2.53.8
1089Olamide ZaccheausPHIWRNYJ24.00-7.02.9
1099Tyler ScottCHIWRMIN20.502.51.1

Tier 3 – CeeDee Lamb

Lamb has been a disappointment in the Cowboys dink-and-dunk offense under Mike McCarthy. His 22% target share looks more like WR2 material, but we saw what Lamb was capable of last year when he accounted for 27%.

While we prefer a pass-heavy offense over the neutral DBOE (0%), the Cowboys are trotting onto the field. However, there isn’t a ton of competition. Michael Gallup and Brandin Cooks aren’t in full-time roles, and their TPRRs aren’t even at WR3 levels.

Utilization Comp

We could get a shootout between the Cowboys and Chargers on Monday night in a game with the highest team total on the slate. And opposing passing attacks have carved the Chargers secondary to shreds by allowing the most yards (329) and the fifth-most TDs (1.8) per game.

Look for Lamb to bounce back in Week 6 with over 100 yards and a TD. He is a SMASH play as my WR9.

Tier 4 – Jordan Addison

Addison registered a 100% route participation and a 25% target share in Week 5 after Justin Jefferson left the game. While the Vikings will also look to get more out of K.J. Osborn, I expect Addison and T.J. Hockenson to benefit the most. Those two have the best target-earning pedigree on the team — Osborn has been well below even WR5 averages for his entire career.

The Vikings could pass the ball less without Jefferson, but they don’t have a strong run game, and this team has failed to build leads. No team has trailed by four-plus points more often than Minnesota’s befuddling 38% in 2023. The Vikings rank No. 2 in DBOE (8%), and that likely isn’t going to change much, given all the factors in play.

Jordan Addison

Sep 14, 2023; Philadelphia, Pennsylvania, USA; Minnesota Vikings wide receiver Jordan Addison (3) runs for a touchdown after a catch against the Philadelphia Eagles during the third quarter at Lincoln Financial Field. Mandatory Credit: Bill Streicher-USA TODAY Sports


This weekend, Addison gets a soft matchup against a Bears secondary that has been on the struggle bus regarding coverage. They rank 29th in coverage grade per PFF, allowing the third-most passing yards per game (297) and the second-most TDs (2.4).

Addison UPGRADES to a mid-range WR3 and offers WR2 upside.

Tier 5 – Josh Downs

Over the last three contests, Downs has finished as the WR27, WR56 and WR17. Interestingly, the common denominator between his two top-36 finishes was Gardner Minshew. Downs is the No. 2 target on the Colts with a 19% target share, BUT he has a 25% target share when Minshew is on the field.

This week, the Colts play the Jaguars, who allow the seventh-most yards (272) yards per game passing. Additionally, they have been decent against the run, giving up the fifth-fewest yards per contest at 82. That combination could lead to a funnel scenario this weekend for the Colts offense.

Downs UPGRADES to high-end WR4 territory and offers WR2 upside.

Tier 5 – Drake London

London has been a major fantasy letdown as the WR40 overall in 2023. However, he has delivered three usable outings in the last four games, including WR19, WR27 and WR18.

Despite the challenges of the offense, London has a 90% route participation and has reached a 24% target share or better in three of five contests.

Drake London

The Falcons offense might never turn into a juggernaut passing attack under the current regime and QB, but London is in a lovely spot against the Commanders. Washington is around the league average in receiving yards allowed per game, but we saw D.J. Moore register an eruption game last week.

Washington runs the second-most man coverage in the NFL, which creates more targets for the alpha options in passing attacks. This season, Drake London has been that guy for the Falcons with a whopping 39% target share versus man — 25 percentage points above the next closest teammate at 14%.

London offers legit WR2 potential if looking for upside with your flex decision this weekend.


Tight End Rankings & Tiers - Week 6

RankTierPlayerTeamPosOppTeam TotalSpreadPPG
13Travis KelceKCTEDEN29.0-11.013.4
24Mark AndrewsBALTETEN22.8-4.012.6
34T.J. HockensonMINTECHI23.0-2.510.5
45Sam LaPortaDETTETB22.8-3.011.9
55George KittleSFTECLE22.3-7.09.6
66Evan EngramJACTEIND24.80.08.1
76Dallas GoedertPHITENYJ24.0-7.07.4
86Darren WallerNYGTEBUF15.314.07.1
96Jake FergusonDALTELAC26.3-2.06.7
106Cole KmetCHITEMIN20.52.510.5
116Logan ThomasWASTEATL20.02.59.9
127Kyle PittsATLTEWAS22.5-2.55.9
137Zach ErtzARITELAR20.87.06.3
147Dalton SchultzHOUTENO20.81.07.2
157Jonnu SmithATLTEWAS22.5-2.57.0
167Dawson KnoxBUFTENYG29.3-14.03.8
177David NjokuCLETESF15.37.05.5
187Hunter HenryNETELV19.33.07.6
197Tyler HigbeeLARTEARI27.8-7.06.1
208Gerald EverettLACTEDAL24.32.04.4
218Tyler ConklinNYJTEPHI17.07.05.8
228Chigoziem OkonkwoTENTEBAL18.84.03.6
238Cade OttonTBTEDET19.83.05.2
248Taysom HillNOTEHOU21.8-1.03.3
258Hayden HurstCARTEMIA17.513.54.5
268Greg DulcichDENTEKC18.011.03.2
278Irv Smith Jr.CINTESEA24.0-3.01.7
289Durham SmytheMIATECAR31.0-13.53.6
299Kylen GransonINDTEJAX20.84.04.6
309Mike GesickiNETELV19.33.03.5
319Donald Parham Jr.LACTEDAL24.32.06.1
329Noah FantSEATECIN21.03.05.3
339Noah GrayKCTEDEN29.0-11.04.9
349Trey McBrideARITELAR20.87.02.4
359Michael MayerLVTENE22.3-3.01.1
369Will DisslySEATECIN21.03.02.6
379Adam TrautmanDENTEKC18.011.03.3

Tier 5 – Cole Kmet

Reminder: I have leveled my tiers across RB, WR and TE to help with flex lineup decisions. Travis Kelce is my highest-rated TE in Week 6, and he is in Tier 2 due to the change in process based on feedback (thanks!).

Kmet is the TE4 in fantasy football after scoring 28 and 15 points over the last two games. While that will be a challenging pace to keep going, the Bears TE is in a nice spot this weekend.

The Vikings allow the 10th-most passing yards per game and utilize zone coverage the sixth-most, where TEs and RBs often see an increase in targets. Kmet trails D.J. Moore only by one percentage point in target share against zone coverage with a 25% share.

Kmet comes in as my TE10 this week and is a top 100 play.

Rankings and Tiers