How often does Professor Elm's Training Method 100/123 sell?

Professor Elm's Training Method 100/123 HeartGold & SoulSilver recorded 5 sales across every grade in the last 90 days (3 in the last 30), most recently on Nov 5, 2026. The highest recent sale was $2.96 for an ungraded copy on Oct 16, 2026.

What is the most valuable card in HeartGold & SoulSilver?

The most valuable card in HeartGold & SoulSilver is Gyarados 123/123, at about $399 ungraded. Professor Elm's Training Method 100/123 ranks 122nd of 124.

What set is Professor Elm's Training Method 100/123 from?

Professor Elm's Training Method 100/123 is from the English Pokémon TCG set HeartGold & SoulSilver, released Feb 10, 2010, in the HeartGold & SoulSilver era. Its rarity is Uncommon.

What is Professor Elm's Training Method 100/123 worth raw, in PSA 9 and in PSA 10?

As of Nov 12, 2026, Professor Elm's Training Method 100/123 is about $0.31 ungraded near mint (5 sales in 90 days); PSA 9: too few sales to price; PSA 10: too few sales to price.

Which printing of Professor Elm's Training Method 100/123 is this, and why do two copies differ in price?

Professor Elm's Training Method 100/123 comes in 2 printings: Non-Holo $0.31 ungraded, Reverse Holo $2.74 ungraded. Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere.

Uncommon2010HeartGold & SoulSilver era

Professor Elm's Training MethodHeartGold & SoulSilver 100/123 price & value

Name: Professor Elm's Training Method 100/123 HeartGold & SoulSilver
Brand: Pokémon
SKU: hgss1-100

Professor Elm's Training Method 100/123, HeartGold & SoulSilver Pokémon card — Press the card to zoom in

UltraBall Market ValueUngraded

$0.31

0.0%4 weeks · Thin market

Medium confidence

How closely the price sources agree, and how often the card trades.

5 ungraded in the last 90 days, all conditions
Fewer than 5 sales listed as near mint
Last sale Jul 25, 2026

How we calculate the UltraBall Market Value →

Medium liquidity36/100

Medium liquidity

Trades regularly, with some spread between sale prices.

About 2 ungraded copies sell a month across all conditions, the pace of the last 90 days.

How we measure liquidity →

Near mint · UltraBall Market Value · 5 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026

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Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value

People ask about this card

What is Professor Elm's Training Method 100/123 worth raw, in PSA 9 and in PSA 10?: As of Nov 12, 2026, Professor Elm's Training Method 100/123 is about $0.31 ungraded near mint (5 sales in 90 days); PSA 9: too few sales to price; PSA 10: too few sales to price. Every grade’s price.
Which printing of Professor Elm's Training Method 100/123 is this, and why do two copies differ in price?: Professor Elm's Training Method 100/123 comes in 2 printings: Non-Holo $0.31 ungraded, Reverse Holo $2.74 ungraded. Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere. Printings compared.

Price history

Professor Elm's Training Method 100/123 price over time

Jul 22Aug 19Sep 17Oct 15Nov 12

Recorded prices, joined day to day

Ungraded, 1 year: $0.35 on Jul 22, 2026, $0.31 on Nov 12, 2026. Lowest $0.31, highest $0.35.

Now: $0.31
4 weeks: 0.0%
90 days: −8.1%
1 year: –no daily prices that far back (daily since Jul 22)
Highest, 1Y: $0.35
Lowest, 1Y: $0.31

Recorded history starts July 2026. Earlier history is monthly averages; from July 22, 2026 the line is a smoothed 7-day average of daily prices, so single-day swings don’t show. Between recorded prices, the line and its daily values are estimated from the prices either side.

Professor Elm's Training Method 100/123 price by month

Ungraded, at the end of each month, newest first: the line above read off at each month’s last day. The latest month ends on today’s UltraBall Market Value.

Month	Ungraded	Change on month
November 2026to Nov 12, 2026	$0.31	0.0%
October 2026	$0.31	0.0%
September 2026	$0.31	down −6.1%
August 2026	$0.33	down −2.9%
July 2026	$0.34	–

Matched to this exact card

Recent verified sales

Latest 8

RawProfessor Elm's Training Method - 100/123 - [HS] - LPLikely best offer · asking price shownNov 5, 2026 · eBay · Sold as light play · View listing · Asking price, up to $1.33asking
RawPokémon TCG Professor Elm's Training Method 100/123 Non Holo NMOffers taken · asking price shownNov 5, 2026 · eBay · Sold as near mint · Offers taken · View listing · Asking price, up to $4.02asking
RawPROFESSOR ELM'S TRAINING METHOD 100/123 HEARTGOLD & SOULSILVER LPLikely best offer · asking price shownOct 28, 2026 · eBay · Sold as light play · Buy It Now · View listing · Asking price, up to $1.99asking
RawProfessor Elm's Training Method 100/123 HeartGold & SoulSilver Uncommon LP Po...Likely best offer · asking price shownOct 16, 2026 · eBay · Sold as light play · Buy It Now · View listing · Asking price, up to $2.96asking
RawProfessor Elm's Training Method 100/123 HeartGold & SoulSilver Pokemon LPLikely best offer · asking price shownSep 21, 2026 · eBay · Sold as light play · View listing · Asking price, up to $2.14asking
RawProfessor Elm's Training Method 100/123 HeartGold & SoulSilver Pokemon LPOffers taken · asking price shownSep 6, 2026 · eBay · Sold as light play · Offers taken · View listing · Asking price, up to $1.99asking
RawProfessor Elm's Training Method 100/123 HeartGold & SoulSilver Pokemon NMLikely best offer · asking price shownJul 25, 2026 · eBay · Sold as near mint · Buy It Now · View listing · Asking price, up to $2.13asking
RawProfessor Elm's Training Method 100/123 | HeartGold & SoulSilver | LPLikely best offer · asking price shownFeb 17, 2026 · eBay · Sold as light play · Buy It Now · View listing · Asking price, up to $2.08asking

Every sale here was matched to this exact card: the right number, set, printing and language, one card per listing, raw kept apart from graded. Where a venue sells by card and gives no listing title to check, the row says the venue named the card. Listings we can’t be sure of are left out. A price marked ≤ is an asking price, not a confirmed sale. On an accepted best offer we show what the buyer paid, not the asking price; where that isn’t on record the asking price is shown as a ceiling and never counts towards the price. A sale marked unusual is far from that grade’s market price: it stays on the record, and is left out of this page’s latest-sale and comparison figures. Sales record updated Nov 11, 2026.

Population report1 PSA graded · Grade breakdown and gem rate

Population

PSA graded: 1
PSA 10: 1
PSA 9: 0
Historical PSA 10 rate: –; PSA 10s of all graded

Grader	Graded	10s	9s	10s share
PSA	1	1	0	–
CGC	14	1	5	–

PSA population by grade
Grade	Copies	Share
10	1	100%

CGC graded: 14
10s: 1
10s share: –
Historical CGC gem rate: –; Gem: 10s, Pristine and Perfect 10s

Every CGC grade (7)

CGC population by grade
Grade	Copies	Share
10	1	7.1%
9	5	36%
8.5	2	14%
7.5	1	7.1%
7	3	21%
6.5	1	7.1%
Authentic	1	7.1%

CGC’s count of Nov 10, 2026. 10s share counts every 10 label; CGC’s own gem is 10s, Pristine and Perfect 10s.

PSA’s count of Oct 16, 2026. CGC, BGS and SGC as of Nov 10, 2026; their 10s include Pristine, Perfect and Black Label 10s. PSA counts the cards it has graded, not every copy that exists. Compare with the low pop cards and the hardest PSA 10s.

Ungraded price against PSA’s population

The same 11 weeks, Jul 24, 2026 to Sep 28, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.

PSA graded
PSA 10s

Left: ungraded price, US$. Right: PSA graded copies.

About

About this card

Professor Elm's Training Method is card 100 of 123 in the HeartGold & SoulSilver price guide, a set released in February 2010 during the HeartGold & SoulSilver era. Its rarity is Uncommon. The artwork is by Ken Sugimori. In the checklist it sits after Pokémon Reversal 99/123 and before Professor Oak's New Theory 101/123.

It is the 122nd most valuable of the 124 priced cards in HeartGold & SoulSilver, behind Gyarados 123/123 (see the most valuable HeartGold & SoulSilver cards).

What the data says

Only 5 ungraded copies sold in the last 90 days, too few to check the value against.

From prices of Nov 12, 2026 and sales to Jul 25, 2026. Observations, not advice or a forecast. How we read the market

Market snapshot

How each figure is worked out

4 weeks: 0.0%ungraded, between 7-day averages
90 days: −8.1%ungraded, between 7-day averages
1 year: –no daily prices that far back: daily since Jul 22, 2026
Direction: Thin marketunder 9 ungraded sales in 90 days: one sale can move the line
High since daily tracking: 9% under$0.34 on Jul 29, 2026, 7-day average; daily prices since Jul 22, 2026
Liquidity: Medium1.7 ungraded sales a month over 90 days
Price confidence: Medium confidenceSome recent sales, or sales that vary more than usual.
Ungraded sold: 3in 30 days; 5 in 90
PSA 10 population: 1of 1 PSA graded, count of Oct 16, 2026

Printings compared

Non-Holo · this pageNothing on the front shines.$0.31 ungraded
Reverse HoloThe border and text box shine; the picture is flat.$2.74 ungradedPictured: the main print’s scan.

Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere.

Card details

Set: HeartGold & SoulSilver
Number: 100/123
Set code: HS
Rarity: Uncommon
Released: Feb 10, 2010
Era: HeartGold & SoulSilver
Illustrator: Ken Sugimori
Printings: Non-holo, Reverse holo

Explore further

Embed

Cite this price

Professor Elm's Training Method 100/123 (HeartGold & SoulSilver) is worth $0.31 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/heartgold-and-soulsilver/professor-elms-training-method-100).

Citation

Professor Elm's Training Method 100/123 (HeartGold & SoulSilver) is worth $0.31 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/heartgold-and-soulsilver/professor-elms-training-method-100).

Link

https://ultraball.com/cards/heartgold-and-soulsilver/professor-elms-training-method-100

HTML

<a href="https://ultraball.com/cards/heartgold-and-soulsilver/professor-elms-training-method-100">Professor Elm's Training Method 100/123 (HeartGold & SoulSilver) price: $0.31 on UltraBall</a>

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