How much is a PSA 10 Professor Oak 88/102 worth?

A PSA 10 Professor Oak 88/102 Base Set is worth about $132; PSA 9 about $41.00, PSA 8 about $15.00, PSA 7 about $12.00. That is about 95× the ungraded value.

How often does Professor Oak 88/102 sell?

Professor Oak 88/102 Base Set recorded 214 sales across every grade in the last 90 days (71 in the last 30), most recently on Nov 10, 2026. The highest recent sale was $180 for a PSA 10 copy on Oct 19, 2026.

What is the most valuable card in Base Set?

The most valuable card in Base Set is Charizard 4/102, at about $731 ungraded. Professor Oak 88/102 ranks 61st of 102.

What set is Professor Oak 88/102 from?

Professor Oak 88/102 is from the English Pokémon TCG set Base Set, released Jan 9, 1999, in the Wizards of the Coast era. Its rarity is Uncommon.

What does Base Set cost to complete?

As of Nov 12, 2026, Base Set costs about $1,953 ungraded (102 of 102 cards priced).

Which printing of Professor Oak 88/102 is this, and why do two copies differ in price?

Professor Oak 88/102 comes in 3 printings: Unlimited $1.39 ungraded, 1st Edition $29.00 ungraded, Shadowless $5.29 ungraded. 1st Edition, Shadowless or Unlimited: look for the black “Edition 1” stamp first. Without it, no drop shadow down the right of the picture box means Shadowless; a shadow means Unlimited.

What is Professor Oak 88/102 worth raw, in PSA 9 and in PSA 10?

As of Nov 12, 2026, Professor Oak 88/102 is about $1.39 ungraded near mint (175 sales in 90 days); PSA 9 about $41.00 (12 sales); PSA 10 about $132 (8 sales).

Is Professor Oak 88/102 worth grading?

As of Nov 12, 2026, against $1.39 raw, a PSA 10 sells for about $132 and, after PSA’s Standard fee ($59.99), shipping and selling fees, leaves about $28.21 more than selling raw; a PSA 9 sells for about $41.00 and, after PSA’s Standard fee ($59.99), shipping and selling fees, leaves about $50.73 less than selling raw. +23% of the copies PSA has graded came back a 10.

UnlimitedUncommon1999Wizards of the Coast era

Professor OakBase Set 88/102 price & value

Name: Professor Oak 88/102 Base Set
Brand: Pokémon
SKU: base1-88

Printing: UnlimitedOther printings: 1st Edition $29.00 ungraded, Shadowless $5.29 ungraded

Professor Oak 88/102, Base Set Pokémon card — Press the card to zoom in

UltraBall Market ValueUngraded

$1.39

down −47%4 weeks · Volatile

High confidence

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

175 ungraded in the last 90 days, all conditions
55 sales on record listed as near mint
Last sale Nov 10, 2026

How we calculate the UltraBall Market Value →

High liquidity100/100

High liquidity

Trades often, at prices that agree. It counts sales, not how long a listing takes to sell.

About 58 ungraded copies sell a month across all conditions, the pace of the last 90 days.

How we measure liquidity →

Near mint · UltraBall Market Value · 175 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026

Graded: PSA 9 $41.00PSA 10 $132

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

People ask about this card

What does Base Set cost to complete?: As of Nov 12, 2026, Base Set costs about $1,953 ungraded (102 of 102 cards priced). Base Set cost to complete.
Which printing of Professor Oak 88/102 is this, and why do two copies differ in price?: Professor Oak 88/102 comes in 3 printings: Unlimited $1.39 ungraded, 1st Edition $29.00 ungraded, Shadowless $5.29 ungraded. 1st Edition, Shadowless or Unlimited: look for the black “Edition 1” stamp first. Without it, no drop shadow down the right of the picture box means Shadowless; a shadow means Unlimited. Printings compared.
What is Professor Oak 88/102 worth raw, in PSA 9 and in PSA 10?: As of Nov 12, 2026, Professor Oak 88/102 is about $1.39 ungraded near mint (175 sales in 90 days); PSA 9 about $41.00 (12 sales); PSA 10 about $132 (8 sales). Every grade’s price.
Is Professor Oak 88/102 worth grading?: As of Nov 12, 2026, against $1.39 raw, a PSA 10 sells for about $132 and, after PSA’s Standard fee ($59.99), shipping and selling fees, leaves about $28.21 more than selling raw; a PSA 9 sells for about $41.00 and, after PSA’s Standard fee ($59.99), shipping and selling fees, leaves about $50.73 less than selling raw. +23% of the copies PSA has graded came back a 10. Grading calculator.

Price history

Professor Oak 88/102 price over time

Nov 11Feb 11May 13Aug 13Nov 12

Recorded prices, joined day to day

Ungraded, 1 year: $1.82 on Nov 11, 2025, $1.39 on Nov 12, 2026. Lowest $1.39, highest $2.55.

Now: $1.39
4 weeks: −47%
90 days: −37%
1 year: −25%
Highest, 1Y: $2.55
Lowest, 1Y: $1.39

Recorded history starts December 2020. Earlier history is monthly averages; from August 29, 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 Oak 88/102 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	$1.39	down −26%
October 2026	$1.88	down −1.1%
September 2026	$1.90	down −14%
August 2026	$2.21	–
July 2026	$1.99	up +33%
June 2026	$1.50	down −25%
May 2026	$2.00	down −7.4%
April 2026	$2.16	up +36%
March 2026	$1.59	down −20%
February 2026	$1.98	up +13%
January 2026	$1.75	up +13%
December 2025	$1.55	down −15%

Matched to this exact card

Recent verified sales

Latest 25

RawProfessor Oak 88/102 Uncommon Base Set Unlimited Pokemon Near MintNov 10, 2026 · eBay · Sold as near mint · View listing · $2.83
RawProfessor Oak - Base Set 88/102 - NM - Vintage Uncommon Pokemon Trainer CardNov 10, 2026 · eBay · Sold as near mint · View listing · $2.10
RawProfessor Oak 88/102 Uncommon Base Set Unlimited Pokemon Moderately PlayedNov 9, 2026 · eBay · Sold as moderate play · View listing · $1.34
RawProfessor Oak 88/102 1999 Uncommon Base Set Unlimited PokemonNov 8, 2026 · eBay · Condition not stated · View listing · $1.82
RawPokemon Professor Oak Base Set 88/102 Trainer Uncommon - LPNov 8, 2026 · eBay · Sold as light play · View listing · $3.82
RawProfessor Oak Base Set 88/102 MP PokemonNov 8, 2026 · eBay · Sold as moderate play · View listing · $1.99
RawPROFESSOR OAK 88/102 UNCOMMON BASE SET UNLIMITEDNov 7, 2026 · eBay · Condition not stated · View listing · $1.37
RawPokemon Card Base Set Unlimited Professor Oak 88/102 UK 4th Print 1999-2000Nov 7, 2026 · eBay · Condition not stated · View listing · $3.00
CGC 101999-2000 Pokemon Base Set Professor Oak #88 CGC 10 GEM MINTUnusual priceNov 5, 2026 · Fanatics Collect · View listing · $65.00
PSA 101999 POKEMON GAME #88 PROFESSOR OAK PSA 10Nov 4, 2026 · eBay · View listing · $160
CGC 91999-2000 Pokemon Base Set Professor Oak #88 CGC 9 MINTNov 2, 2026 · Fanatics Collect · View listing · $9.60
CGC 61999 Pokemon Base Set Professor Oak #88 CGC 6 EXMTNov 2, 2026 · Fanatics Collect · View listing · $6.00
CGC 10Professor Oak 1999 Pokemon Base Set Low Pop CGC 10 #88/102Likely best offer · asking price shownOct 29, 2026 · eBay · View listing · Asking price, up to $64.99asking
PSA 10Professor Oak Uncommon PSA 10 Base Set Unlimited 88/102 Pokemon CardOct 22, 2026 · eBay · View listing · $120
PSA 10Pokemon Professor Oak 88/102 Base Set 1999-2000 PSA 10 Trainer CardOct 19, 2026 · eBay · Best offer accepted · View listing · $180
PSA 91999 POKEMON BASE SET UNLIMITED #88 PROFESSOR OAK PSA 9Oct 16, 2026 · eBay · Auction · View listing · $41.00
PSA 101999 Pokemon Base Set Professor Oak #88 PSA 10 GEM MINTOct 12, 2026 · Fanatics Collect · View listing · $132
PSA 91999 Pokemon Base Set Professor Oak #88/102 PSA 9 MINT WOTC Vintage TrainerOct 11, 2026 · eBay · Auction · View listing · $41.00
PSA 10Professor Oak (PSA GEM MINT 10) - Unlimited - Pokemon Base Set 1999 #88/102Oct 5, 2026 · eBay · Buy It Now · View listing · $170

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.

Graded values

Professor Oak 88/102 price by grade

Professor Oak 88/102: market price, 4-week change, sales pace and last sale by grade
Grade	Market value	4 wk	Sales/moSales a month	Last sale
UngradedHigh. How closely the price sources agree, and how often the card trades.	$1.39Last $2.83 · Nov 10, 2026	down −47% volatile	58High liquidity. High	$2.83Nov 10, 2026High. How closely the price sources agree, and how often the card trades.
PSA 1095× rawHigh. Many recent comparable sales that agree closely.	$132Last $160 · Nov 4, 2026	up +13%	3Medium liquidity. Medium	$160Nov 4, 2026High. Many recent comparable sales that agree closely.
PSA 929.5× rawMedium. Some recent sales, or sales that vary more than usual.	$41.00Last $41.00 · Oct 16, 2026	up +4.6%	4Medium liquidity. Medium	$41.00Oct 16, 2026Medium. Some recent sales, or sales that vary more than usual.
PSA 810.8× rawHigh. Many recent comparable sales that agree closely.	$15.00Last $9.65 · Oct 29, 2026	down −25%	1Medium liquidity. Medium	$9.65Oct 29, 2026High. Many recent comparable sales that agree closely.
PSA 78.6× rawLimited. How closely the price sources agree, and how often the card trades.	$12.00Last $12.40 · Aug 12, 2026	down −18%	No recent sales	$12.40Aug 12, 2026Limited. How closely the price sources agree, and how often the card trades.
CGC 1011.2× rawHigh. Many recent comparable sales that agree closely.	$15.60	–	0.3Medium liquidity. Medium	–High. Many recent comparable sales that agree closely.

Each graded row counts only that grade's sales; the ungraded row counts every condition. Sales a month is the 90-day pace. Last sale is the latest verified sale, never an asking price. How we calculate the UltraBall Market Value

Showing each company’s top grade. Choose a company above for every grade it has a price for.

Grade it with PSA?

Grade yours from photos →Change the costs, or add your own odds →

If it gets a PSA 10: +$28.21
If it gets a PSA 9: −$50.73
PSA fee for a PSA 10: $59.99 Standard
Slab sale price to break even: $99.48at Standard, $59.99
Grading pays, at today’s prices: PSA 10 only
Historical PSA 10 rate: 23%

Against selling raw at $1.39, after the PSA fee for what the slab is worth (a 10 goes in at Standard, $59.99; a 9 at the same level), $25.00 shipping and insurance, and eBay US selling fees, as the selling calculator works them out, with its usual $5 postage and $1 packing on each sale: the same sum as the selling calculator. Each grade is charged the fee level its own slab price needs, so the break-even price carries the fee for a slab at that price, not the PSA 10 fee. These are outcomes if the card gets each grade, not the chance that it will. PSA has graded 1,305 copies; 303 got a 10.

Population

PSA graded: 1,305; +94 Sep 28, 2026 – Nov 9, 2026
PSA 10: 303; +10 Sep 28, 2026 – Nov 9, 2026
PSA 9: 530; +31 Sep 28, 2026 – Nov 9, 2026
Historical PSA 10 rate: 23%; PSA 10s of all graded

A higher historical PSA 10 rate than 61% of the Base Set cards PSA has graded enough of.

Grader	Graded	10s	9s	10s share
PSA	1,305	303	530	23%
CGC	661	82	142	12%
BGS	45	0	26	0.00%
SGC	20	3	6	15%

PSA graded: 1,305
10s: 303
10s share: 23%
Historical PSA 10 rate: 23%

Every PSA grade (11)

PSA population by grade
Grade	Copies	Share
10	303	23%
9	530	40%
8.5	10	0.76%
8	239	18%
7	107	8.1%
6	63	4.8%
5	40	3.0%
4	13	0.99%
3	6	0.46%
2	3	0.23%
1	1	0.08%

PSA’s count of Nov 10, 2026. The rate is PSA 10s over every copy PSA has graded.

CGC graded: 661
10s: 82
10s share: 12%
Historical CGC gem rate: 12%; Gem: 10s, Pristine and Perfect 10s

Every CGC grade (17)

CGC population by grade
Grade	Copies	Share
10	82	12%
9.5	31	4.7%
9	142	21%
8.5	113	17%
8	88	13%
7.5	60	9.1%
7	39	5.9%
6.5	33	5.0%
6	27	4.1%
5.5	14	2.1%
5	11	1.7%
4.5	8	1.2%
4	4	0.61%
3.5	2	0.30%
2.5	1	0.15%
1.5	1	0.15%
Authentic	5	0.76%

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

Beckett graded: 45
10s: 0
10s share: 0%
Historical Beckett gem rate: 16%; Gem: 9.5s, Pristine and Black Label 10s

Every Beckett grade (7)

Beckett population by grade
Grade	Copies	Share
9.5	7	16%
9	26	58%
8.5	7	16%
8	2	4.4%
6.5	1	2.2%
3.5	1	2.2%
3	1	2.2%

Beckett’s count of Nov 10, 2026. 10s share counts every 10 label; Beckett’s own gem is 9.5s, Pristine and Black Label 10s.

SGC graded: 20
10s: 3
10s share: 15%
Historical SGC gem rate: 15%; Gem: 10s and Pristine 10s

Every SGC grade (8)

SGC population by grade
Grade	Copies	Share
10	3	15%
9.5	2	10%
9	6	30%
8.5	2	10%
8	2	10%
7	1	5.0%
6	3	15%
4	1	5.0%

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

PSA’s count of Nov 10, 2026; the changes are PSA’s weekly report from Sep 28, 2026 to Nov 9, 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.

PSA 10 price against PSA’s population

The same 14 weeks, Jul 24, 2026 to Nov 9, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.

Left: PSA 10 price, US$. Right: PSA graded copies.

About

About this card

This page prices the Unlimited print. A 1st Edition Professor Oak sells for about $29.00 ungraded. A Shadowless Professor Oak sells for about $5.29 ungraded.

Professor Oak is card 88 of 102 in the Base Set price guide, a set released in January 1999 during the Wizards of the Coast era. Its rarity is Uncommon. The artwork is by Ken Sugimori. In the checklist it sits after Pokédex 87/102 and before Revive 89/102.

It is the 61st most valuable of the 102 priced cards in Base Set, behind Charizard 4/102 (see the most valuable Base Set cards).

What the data says

The ungraded price line swung twofold or more inside the last four weeks (−47% on 7-day averages). Read that as unstable data, not a trend.

Ungraded copies are cheap, but graded ones are not: a PSA 10 is valued at $132.

PSA has graded 1,305 copies, 303 of them PSA 10 (23%). That describes the copies sent in, not the chance a given card grades 10.

From prices of Nov 12, 2026 and sales to Nov 10, 2026. Observations, not advice or a forecast. How we read the market

Market snapshot

How each figure is worked out

4 weeks: −47%ungraded, between 7-day averages
90 days: −37%ungraded; before Aug 29, 2026 from monthly averages
1 year: −25%ungraded; before Aug 29, 2026 from monthly averages
Direction: Volatilethe line swung 2× or more inside the last four weeks: a thin market or an unstable feed
High since daily tracking: 47% under$2.59 on Oct 16, 2026, 7-day average; daily prices since Aug 29, 2026
Liquidity: High58.3 ungraded sales a month over 90 days
Price confidence: High confidenceMany recent comparable sales that agree closely.
Ungraded sold: 59in 30 days; 175 in 90
PSA 10 population: 303of 1,305 PSA graded, count of Nov 10, 2026
Population change: +94graded, +10 PSA 10s, Sep 28, 2026 to Nov 9, 2026

Printings compared

Unlimited · this pageNo 1st Edition stamp, and a drop shadow down the right-hand edge of the art box. This is the common print.$1.39 ungraded
1st EditionA black “Edition 1” stamp to the lower left of the art box.$29.00 ungraded
ShadowlessBase Set only. No drop shadow on the right of the art box, thinner HP text, and no 1st Edition stamp.$5.29 ungraded

1st Edition, Shadowless or Unlimited: look for the black “Edition 1” stamp first. Without it, no drop shadow down the right of the picture box means Shadowless; a shadow means Unlimited.

Card details

Set: Base Set
Number: 88/102
Set code: BS
Rarity: Uncommon
Released: Jan 9, 1999
Era: Wizards of the Coast
Illustrator: Ken Sugimori
Printings: Unlimited, 1st Edition, Shadowless
Character: All Professor Oak cards

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Professor Oak 88/102 (Base Set) is worth $1.39 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/base-set/professor-oak-88).

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Professor Oak 88/102 (Base Set) is worth $1.39 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/base-set/professor-oak-88).

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Full checklist

Base Set

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Full ranking

Same illustrator

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All 1134

Wizards of the Coast era

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The whole era

FAQ

Questions collectors ask

As of Nov 12, 2026, Professor Oak 88/102 Base Set is worth about $1.39 ungraded. A PSA 10 copy is worth about $132. How we price cards.