Predictions
Every week we name the product we expect to lead each chart next week, publish it before that week happens, and score it when the capture lands — including the ones we get wrong.
4 of 6 scored predictions correct — 67%
For 2026-W37
sealed 2026-08-31 · from 2026-W36 data · open
KR:All high confidence not scored yet
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
GLOBALWW:All low confidence not scored yet
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
For 2026-W36
sealed 2026-08-24 · from 2026-W35 data · scored
KR:All high confidence correct
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
Actual: MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
GLOBALWW:All low confidence wrong
Dr. Althea 345 Relief Cream 50ml Set (+10ml*2ea+Tube Wringer)
Challengers we named
#3 SKIN1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum 50mL*2ea (Twin pack) +5
#6 Centellian24 Madeca Cream Time Reverse 50ml Triple Set +13
Actual: MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
For 2026-W35
sealed 2026-08-17 · from 2026-W34 data · scored
KR:All high confidence correct
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
Challengers we named
#6 celimax The Vita A Retinal Shot Tightening Booster 15ml Set (+3ml) +11
Actual: MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
GLOBALWW:All medium confidence wrong
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
Challengers we named
#2 UNOVE Deep Damage Repair Hair Mask (Treatment / Hair Pack) 320mL Double Pack (4 Options) +6
#3 [TRIPLE] ROUND LAB Birch Juice Moisturizing Sunscreen 50ml Triple Set +40
Actual: Dr. Althea 345 Relief Cream 50ml Set (+10ml*2ea+Tube Wringer)
For 2026-W34
sealed 2026-08-13 · from 2026-W33 data · scored
KR:All high confidence correct
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive)
Challengers we named
#2 beplain Mung Bean pH-Balanced Cleansing Foam 160ml Double Pack +17
#5 MEDIHEAL Toner Pad 100+100 Pads Double Pack (10types) +2
Actual: MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
GLOBALWW:All medium confidence correct
MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive)
Challengers we named
#2 MEDIHEAL Toner Pad 100+100 Pads Double Pack (10types) +9
#6 SKIN1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum 50mL*2ea (Twin pack) +7
Actual: MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options)
Backtest — this is not a prediction record
This is a backtest, not a prediction record. It was computed after the outcomes were known and is shown only to say whether the method held up. Our scored record contains only predictions published before the week they cover.
10 of 13 week pairs · 77%
| From | For | Chart | Method would have said | |
|---|---|---|---|---|
| 2026-W29 | 2026-W30 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W30 | 2026-W31 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W30 | 2026-W31 | GLOBALWW:All | REJURAN Ultimate Glow & Firm Set | hit |
| 2026-W31 | 2026-W32 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W31 | 2026-W32 | GLOBALWW:All | REJURAN Ultimate Glow & Firm Set | miss |
| 2026-W32 | 2026-W33 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W32 | 2026-W33 | GLOBALWW:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W33 | 2026-W34 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W33 | 2026-W34 | GLOBALWW:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) | hit |
| 2026-W34 | 2026-W35 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options) | hit |
| 2026-W34 | 2026-W35 | GLOBALWW:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options) | miss |
| 2026-W35 | 2026-W36 | KR:All | MEDIHEAL Essential Mask Sheet 10ea Set (+1ea) (OY-Exclusive) (7 Options) | hit |
| 2026-W35 | 2026-W36 | GLOBALWW:All | Dr. Althea 345 Relief Cream 50ml Set (+10ml*2ea+Tube Wringer) | miss |
Product-level prediction runs only on charts we collect through an API, where a product keeps the same identity from week to week. Our US retail charts are captured as screenshots, and the same product is read under a slightly different name each week, so we do not predict at the product level there. How we measure.