All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Aaron Grushow

Bib: 33568β€’M

CA

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
37:27
3.11 mi
Rank: #28816
Start β†’ 5K
37:27 | 12:04/mi
10K
1:08:04
6.21 mi
Rank: #27819 (+997)
5K β†’ 10K
30:37 | 9:52/mi
15K
1:39:31
9.32 mi
Rank: #27223 (+596)
10K β†’ 15K
31:27 | 10:08/mi
20K
2:11:42
12.43 mi
Rank: #26858 (+365)
15K β†’ 20K
32:11 | 10:22/mi
HALF
2:18:22
13.11 mi
Rank: #26775 (+83)
20K β†’ HALF
6:40 | 9:47/mi
25K
2:43:11
15.53 mi
Rank: #26476 (+299)
HALF β†’ 25K
24:49 | 10:14/mi
30K
3:16:44
18.64 mi
Rank: #26222 (+254)
25K β†’ 30K
33:33 | 10:48/mi
20M
3:31:27
20.00 mi
Rank: #26102 (+120)
30K β†’ 20M
14:43 | 10:51/mi
21M
3:43:15
21.00 mi
Rank: #26049 (+53)
20M β†’ 21M
11:48 | 11:48/mi
35K
3:51:15
21.75 mi
Rank: #25997 (+52)
21M β†’ 35K
8:00 | 10:42/mi
23M
4:05:00
23.00 mi
Rank: #25906 (+91)
35K β†’ 23M
13:45 | 11:00/mi
24M
4:16:08
24.00 mi
Rank: #25888 (+18)
23M β†’ 24M
11:08 | 11:08/mi
40K
4:25:37
24.85 mi
Rank: #25833 (+55)
24M β†’ 40K
9:29 | 11:06/mi
25.2M
4:29:51
25.20 mi
Rank: #25820 (+13)
40K β†’ 25.2M
4:14 | 12:17/mi
FINISH
4:39:58
26.22 mi
Rank: #25761 (+59)
25.2M β†’ FINISH
10:07 | 9:56/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:18:22
Pace10:34 /mi
2nd Half
Distance13.11 mi
Time2:21:36
Pace10:49 /mi
πŸ“ŠPositive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:08:1237:2712:0437:27
12:04
-
10K
6.21 mi12:38:491:08:0410:5830:37
9:52
-2:12
15K
9.32 mi13:10:161:39:3110:4131:27
10:08
+0:16
20K
12.43 mi13:42:272:11:4210:3632:11
10:22
+0:14
HALF
13.11 mi13:49:072:18:2210:346:40
9:47
-0:35
25K
15.53 mi14:13:562:43:1110:3124:49
10:14
+0:27
30K
18.64 mi14:47:293:16:4410:3433:33
10:48
+0:34
20M
20.00 mi15:02:123:31:2710:3514:43
10:51
+0:03
21M
21.00 mi15:14:003:43:1510:3811:48
11:48
+0:57
35K
21.75 mi15:22:003:51:1510:388:00
10:42
-1:06
23M
23.00 mi15:35:454:05:0010:4013:45
11:00
+0:18
24M
24.00 mi15:46:534:16:0810:4111:08
11:08
+0:08
40K
24.85 mi15:56:224:25:3710:429:29
11:06
-0:02
25.2M
25.20 mi16:00:364:29:5110:434:14
12:17
+1:11
FINISH
26.22 mi16:10:434:39:5810:4210:07
9:56
-2:21

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:47 /mi

Average Pace

10:41 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:15:51

49% of race

Time at Steady Pace

1:30:38

32% of race

Time at Slower Pace

53:29

19% of race

Average Pace: 10:41 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:08:1237:2712:0437:27
12:04
#28816
10K
6.21 mi12:38:491:08:0410:5830:37
9:52
#27819
15K
9.32 mi13:10:161:39:3110:4131:27
10:08
#27223
20K
12.43 mi13:42:272:11:4210:3632:11
10:22
#26858
HALF
13.11 mi13:49:072:18:2210:346:40
9:47
#26775
25K
15.53 mi14:13:562:43:1110:3124:49
10:14
#26476
30K
18.64 mi14:47:293:16:4410:3433:33
10:48
#26222
20M
20.00 mi15:02:123:31:2710:3514:43
10:51
#26102
21M
21.00 mi15:14:003:43:1510:3811:48
11:48
#26049
35K
21.75 mi15:22:003:51:1510:388:00
10:42
#25997
23M
23.00 mi15:35:454:05:0010:4013:45
11:00
#25906
24M
24.00 mi15:46:534:16:0810:4111:08
11:08
#25888
40K
24.85 mi15:56:224:25:3710:429:29
11:06
#25833
25.2M
25.20 mi16:00:364:29:5110:434:14
12:17
#25820
FINISH
26.22 mi16:10:434:39:5810:4210:07
9:56
#25761
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi28816162751627525966(Top 89%)15160(Top 93%)15160(Top 265%)
10K6.21 mi3.10 mi27819+99715946+32915946+32925484(Top 88%)14957(Top 92%)14957(Top 261%)
15K9.32 mi3.11 mi27223+59615694+25215694+25225966(Top 89%)15160(Top 93%)15160(Top 265%)
20K12.43 mi3.11 mi26858+36515543+15115543+15125839(Top 89%)15087(Top 92%)15087(Top 264%)
HALF13.11 mi0.68 mi26775+8315499+4415499+4425088(Top 86%)14727(Top 90%)14727(Top 257%)
25K15.53 mi2.42 mi26476+29915368+13115368+13124841(Top 86%)14604(Top 89%)14604(Top 255%)
30K18.64 mi3.11 mi26222+25415227+14115227+14124937(Top 86%)14510(Top 89%)14510(Top 254%)
20M20.00 mi1.36 mi26102+12015167+6015167+6024584(Top 85%)14261(Top 87%)14261(Top 249%)
21M21.00 mi1.00 mi26049+5315129+3815129+3824733(Top 85%)14277(Top 87%)14277(Top 249%)
35K21.75 mi0.75 mi25997+5215087+4215087+4224683(Top 85%)14240(Top 87%)14240(Top 249%)
23M23.00 mi1.25 mi25906+9115034+5315034+5324474(Top 84%)14095(Top 86%)14095(Top 246%)
24M24.00 mi1.00 mi25888+1815012+2215012+2225364(Top 87%)14490(Top 89%)14490(Top 253%)
40K24.85 mi0.85 mi25833+5514976+3614976+3624423(Top 84%)13989(Top 86%)13989(Top 244%)
25.2M25.20 mi0.35 mi25820+1314966+1014966+1024948(Top 86%)14253(Top 87%)14253(Top 249%)
FINISH26.22 mi1.02 mi25761+5914925+4114925+4123630(Top 81%)13616(Top 83%)13616(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
Γ—21
+97ft-345ft

Overall

25966

Males

15160

M18-39

15160

5K→10K

3.1 - 6.2 mi

Top 88%
Γ—5
+79ft-138ft

Overall

25484

Males

14957

M18-39

14957

10K→15K

6.2 - 9.3 mi

Top 89%
Γ—3
+67ft-78ft

Overall

25966

Males

15160

M18-39

15160

15K→20K

9.3 - 12.4 mi

Top 89%
Γ—5
+106ft-86ft

Overall

25839

Males

15087

M18-39

15087

20K→HALF

12.4 - 13.1 mi

Top 86%
Γ—2
+19ft-37ft

Overall

25088

Males

14727

M18-39

14727

HALF→25K

13.1 - 15.5 mi

Top 86%
Γ—4
+66ft-88ft

Overall

24841

Males

14604

M18-39

14604

25K→30K

15.5 - 18.6 mi

Top 86%
Γ—9
+181ft-148ft

Overall

24937

Males

14510

M18-39

14510

30K→20M

18.6 - 20.0 mi

Top 85%
Γ—5
+64ft-50ft

Overall

24584

Males

14261

M18-39

14261

20M→21M

20.0 - 21.0 mi

Top 85%
Γ—8
+106ft-24ft

Overall

24733

Males

14277

M18-39

14277

21M→35K

21.0 - 21.8 mi

Top 85%
Γ—7
+17ft-86ft

Overall

24683

Males

14240

M18-39

14240

35K→23M

21.8 - 23.0 mi

Top 84%
Γ—5
+23ft-63ft

Overall

24474

Males

14095

M18-39

14095

23M→24M

23.0 - 24.0 mi

Top 87%
Γ—6
+12ft-82ft

Overall

25364

Males

14490

M18-39

14490

24M→40K

24.0 - 24.9 mi

Top 84%
Γ—1
+6ft-20ft

Overall

24423

Males

13989

M18-39

13989

40K→25.2M

24.9 - 25.2 mi

Top 86%
Γ—1
+13ft-16ft

Overall

24948

Males

14253

M18-39

14253

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
Γ—2
+22ft-21ft

Overall

23630

Males

13616

M18-39

13616

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3190*
Passed By
135
Net Change
+3055
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#28816
5K β†’ 10K999*2+997#28816#27819
10K β†’ 15K599*3+596#27819#27223
15K β†’ 20K368*3+365#27223#26858
20K β†’ HALF852+83#26858#26775
HALF β†’ 25K302*3+299#26775#26476
25K β†’ 30K267*13+254#26476#26222
30K β†’ 20M1299+120#26222#26102
20M β†’ 21M7320+53#26102#26049
21M β†’ 35K6614+52#26049#25997
35K β†’ 23M998+91#25997#25906
23M β†’ 24M4426+18#25906#25888
24M β†’ 40K7015+55#25888#25833
40K β†’ 25.2M207+13#25833#25820
25.2M β†’ FINISH6910+59#25820#25761
TOTALS3190*135+3055

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing