RallyIQ

Game plan

Tallon Griekspoor v Dominic Thiem

Every number combines what Tallon Griekspoor does well with what Dominic Thiem allows, each measured against the tour average and shrunk toward it when the sample is thin. Flip perspective

Forecast

Tallon Griekspoor wins, best of 3 27%90%: 12%–47% · best of 5: 22%
Serve points won 64.8% / 69.9% Tallon / Dominic · tour 63.4%
Strengths only, no similarity priors 34%serve 64.8% / 68.3%

Each player's serve and return strength is fitted against every opponent they were charted against, so a record built on weak opponents counts for less. At least one of them is no longer active or has too little charted in the last three seasons, so both are compared on their careers. The result is then nudged by Tallon Griekspoor's record against Dominic Thiem's tactical lookalikes and in their charted head-to-heads (lookalikes: −0.1 on serve, −3.8 on return vs expectation (2461 points)). A game-by-game Markov chain turns point odds into match odds; the 90% range covers the uncertainty in the two strengths, not the nudges. Charted matches lean toward big events, so treat this as a scouting estimate, not a betting line.

Head to head, per 100 shots

CareerTallonDominic
Direction choice+0.19 ±0.03
better than 93%
+0.12 ±0.03
better than 83%
Shot selection+0.07 ±0.08
better than 61%
−0.28 ±0.08
better than 25%
Execution−1.38 ±0.28
better than 13%
+0.04 ±0.20
better than 71%
Points left on the table2.42 ±0.06
lower than 71%
2.48 ±0.05
lower than 63%

Each player's career against an average tour player in the same position, adjusted for opponent strength, with a 90% margin (shots clustered by match). Points left on the table is the gap to the best-value direction for the same stroke, so lower is better. Percentiles are within each player's own tour. A side is highlighted only when the gap is larger than the margin on the difference.

Structural compatibility

Expected edge per 100 rally shots from style alone: Tallon Griekspoor −2.23, Dominic Thiem −0.63. Each player's shot mix weighted by their own skill with each shot and by how much the other gives up against it. This is why some rankings gaps don't hold in a given matchup.

Serve plan

The share of points the server wins when a first serve lands in that direction (hover a rate for its 90% interval; ± is the 90% margin). "Matchup" combines the server's rate with how this returner handles that serve. "Optimal" is the mix that wins most against this returner once they start reading a habit, at the response measured across the tour, and only within the range servers' habits actually vary. The gain over the current mix is how exploitable that mix is.

Tallon Griekspoor serving

Deuce court

1st serveNowTallon winsv DominicMatchupOptimal
Wide48%74%73%73.5%±2.444% ▼
Body8%65%63%64.5%±5.10% ▼
T43%77%73%75.5%±2.456% ▲

Optimal v Dominic Thiem: +0.4±0.4 per 100 first serves (faults included) over the current mix. Serving T every time would read +1.9 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowTallon winsv DominicMatchupOptimal
Wide54%76%72%75.3%±2.367% ▲
Body9%60%65%62.0%±5.60% ▼
T37%73%72%73.3%±2.833% ▼

Optimal v Dominic Thiem: +0.5±0.4 per 100 first serves (faults included) over the current mix. Serving wide every time would read +1.9 per 100 first serves in before the returner adjusts.

Dominic Thiem serving

Deuce court

1st serveNowDominic winsv TallonMatchupOptimal
Wide47%73%76%76.1%±2.339% ▼
Body5%61%64%61.9%±5.80% ▼
T48%74%79%78.6%±2.361% ▲

Optimal v Tallon Griekspoor: +0.4±0.4 per 100 first serves (faults included) over the current mix. Serving T every time would read +2.0 per 100 first serves in before the returner adjusts.

Ad court

1st serveNowDominic winsv TallonMatchupOptimal
Wide52%71%77%75.1%±2.465% ▲
Body7%64%66%67.2%±5.40% ▼
T40%71%74%73.9%±2.735% ▼

Optimal v Tallon Griekspoor: +0.3±0.4 per 100 first serves (faults included) over the current mix, inside the 90% margin. Serving wide every time would read +1.1 per 100 first serves in before the returner adjusts.

Return plan

Value of each return, in points per 100 returns against an average return of the same serve (direction, court, surface): the tour's result with that return, the returner's own edge with it, and what this server gives up when it comes back to that side. Returns with no charted direction are left out, so values compare with each other rather than with zero. Depth isn't a choice here: missed returns have no depth. Serve quality isn't charted, so a block through the middle partly reflects the serve that forced it.

Tallon Griekspoor returning

1st serve to the forehand

ReturnNowTourOwnv DominicValue
FH through the middle42%+4.3−2.3−1.2+0.7±1.3
FH crosscourt26%+5.5−2.2−1.6+1.8±2.4
FH slice through the middle14%−4.2−3.3−1.6−9.1±1.8
FH down the line11%+1.7−3.9−1.3−3.5±3.0
FH slice down the line5%−4.3−1.9+1.2−4.9±3.1

Lean FH crosscourt: +3.1±1.9 per 100 returns v the current mix (1906 returns charted)

1st serve to the backhand

ReturnNowTourOwnv DominicValue
BH through the middle32%+6.4−1.5−1.1+3.8±1.3
BH crosscourt27%+8.8−5.7+0.8+3.9±1.7
BH slice through the middle20%−4.2−3.1−1.9−9.2±1.5
BH slice crosscourt8%+0.5−4.8−1.4−5.7±2.3
BH down the line8%+4.2−2.1−4.4−2.3±3.4

Lean BH crosscourt: +4.8±1.4 per 100 returns v the current mix (2010 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv DominicValue
FH crosscourt40%−0.2−1.0−3.1−4.4±3.3
FH through the middle39%−3.5−3.0−0.9−7.4±1.9
FH down the line15%−1.8−4.1−0.8−6.7±3.9
FH slice through the middle5%−12.7−2.6+0.7−14.5±2.1
FH slice down the line1%−9.4−0.4−0.1−10.0±1.9

Lean FH crosscourt: +2.1±2.2 per 100 returns v the current mix (471 returns charted, inside the 90% margin)

2nd serve to the backhand

ReturnNowTourOwnv DominicValue
BH through the middle38%−2.9−2.1±0.0−5.0±1.2
BH crosscourt31%+1.0−4.1±0.0−3.1±1.7
BH down the line9%−0.2−2.9−0.4−3.4±3.8
FH through the middle9%−2.9+0.6−0.9−3.2±1.8
FH inside-in6%+0.6+2.0−3.1−0.5±3.7

Lean FH inside-in: +3.2±3.6 per 100 returns v the current mix (1307 returns charted, inside the 90% margin)

Dominic Thiem returning

1st serve to the forehand

ReturnNowTourOwnv TallonValue
FH through the middle51%+4.3−1.4−0.6+2.3±1.2
FH down the line22%+1.7−1.0−3.3−2.7±2.6
FH crosscourt17%+5.5−1.0−2.1+2.4±2.7
FH slice through the middle6%−4.2−1.0−2.5−7.7±1.8
FH slice down the line2%−4.3−3.2−2.0−9.5±3.1

Lean FH crosscourt: +2.2±2.4 per 100 returns v the current mix (2907 returns charted, inside the 90% margin)

1st serve to the backhand

ReturnNowTourOwnv TallonValue
BH through the middle34%+6.4−1.0−1.7+3.7±1.2
BH slice through the middle18%−4.2−2.3−3.9−10.4±1.4
BH crosscourt18%+8.8−1.5−3.1+4.2±1.8
BH slice crosscourt13%+0.5−2.3−3.9−5.7±2.0
BH down the line12%+4.2−4.1−4.4−4.3±3.2

Lean BH crosscourt: +6.0±1.6 per 100 returns v the current mix (3946 returns charted)

2nd serve to the forehand

ReturnNowTourOwnv TallonValue
FH through the middle48%−3.5−0.5+0.4−3.6±1.7
FH crosscourt29%−0.2+0.8−0.3+0.3±3.3
FH down the line19%−1.8−0.8−1.8−4.4±3.7
FH slice through the middle2%−12.7−0.5−1.9−15.0±2.2
FH slice down the line1%−9.4−0.3−0.6−10.3±2.4

Lean FH crosscourt: +3.2±2.6 per 100 returns v the current mix (802 returns charted)

2nd serve to the backhand

ReturnNowTourOwnv TallonValue
BH through the middle32%−2.9−1.0−0.9−4.7±1.2
BH crosscourt27%+1.0+1.2−2.8−0.6±1.6
FH through the middle13%−2.9+0.9+0.4−1.6±1.5
FH inside-out9%+1.0+0.2−1.8−0.6±2.7
BH down the line8%−0.2−5.1−3.8−9.1±4.1
FH inside-in4%+0.6+0.8−0.3+1.1±3.8

Lean FH inside-in: +5.0±3.7 per 100 returns v the current mix (2564 returns charted)

Rally plan

Edge, in points per 100 shots: the hitter's skill with the shot (own) plus how much the receiver usually gives up against it (theirs), both measured against the tour average.

Tallon Griekspoor

Favour

ShotEdgeOwnTheirs
BH volley to the middle · rally+3.8±5.2+1.6+2.2
BH lob to the middle · rally+3.8±2.9+2.6+1.2
Smash to their backhand · rally+3.6±4.0+0.3+3.3
FH slice to their forehand · return +1+3.4±3.9+2.6+0.8
FH volley to their forehand · serve +1+2.7±5.0+1.4+1.3
FH lob to the middle · rally+1.9±3.9+1.3+0.7

Avoid

ShotEdgeOwnTheirs
BH volley to their backhand · rally−10.5±4.5−8.7−1.8
FH volley to the middle · rally−8.7±5.8−3.4−5.4
BH slice to their forehand · rally−7.8±2.7−2.6−5.2
BH volley to their backhand · serve +1−7.4±4.8−4.5−2.8
BH slice to their backhand · return−6.9±2.1−5.1−1.8

Dominic Thiem

Favour

ShotEdgeOwnTheirs
BH drop shot to their forehand · rally+8.3±4.7+7.3+1.1
FH drop shot to their backhand · rally+7.1±5.1+4.5+2.6
Smash to their backhand · rally+5.3±4.1+3.4+1.9
BH lob to their backhand · rally+3.6±4.5+1.2+2.4
BH lob to the middle · rally+3.3±2.9+0.7+2.6
BH lob to the middle · return +1+2.4±2.5+0.1+2.3

Avoid

ShotEdgeOwnTheirs
BH slice to their forehand · return−9.4±3.0−5.5−3.9
BH to their forehand · return−8.8±2.7−4.4−4.4
BH slice to their backhand · return−6.3±1.8−1.8−4.5
FH volley to their forehand · rally−6.0±4.8−2.7−3.3
BH slice to the middle · return−5.9±1.3−2.4−3.5

Against Dominic Thiem-like opponents

Tallon Griekspoor vMatchesServe pts wonReturn pts won
All charted opponents–65.5%32.6%
Players most similar to Dominic Thiem13 65.6%26.8%

Similar by tactical fingerprint: Casper Ruud, Stefanos Tsitsipas, Joao Fonseca, Hubert Hurkacz, Lorenzo Musetti, Alexei Popyrin, Laslo Djere, Thanasi Kokkinakis, Jo Wilfried Tsonga, Philipp Kohlschreiber. When two players have rarely met, their records against these lookalikes fill the gap.