Boston Marathon logo
BOSTON MARATHON 2023

Aaron Dy

Bib: 3760•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:23
Rank: #5429
Start → 5K
21:23 | 6:53/mi
10K· 6.21 mi
42:55
Rank: #5866 (-437)
5K → 10K
21:32 | 6:56/mi
15K· 9.32 mi
1:04:37
Rank: #6081 (-215)
10K → 15K
21:42 | 6:59/mi
20K· 12.43 mi
1:26:40
Rank: #6183 (-102)
15K → 20K
22:03 | 7:06/mi
Half· 13.11 mi
1:31:23
Rank: #6180 (+3)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:48:19
Rank: #6046 (+134)
Half → 25K
16:56 | 6:59/mi
30K· 18.64 mi
2:10:42
Rank: #5881 (+165)
25K → 30K
22:23 | 7:12/mi
20M
2:20:43
Rank: #5862 (+19)
30K → 20M
10:01 | 7:22/mi
21M
2:28:27
Rank: #5812 (+50)
20M → 21M
7:44 | 7:44/mi
35K· 21.75 mi
2:33:43
Rank: #5787 (+25)
21M → 35K
5:16 | 7:02/mi
23M
2:43:00
Rank: #5739 (+48)
35K → 23M
9:17 | 7:25/mi
24M
2:50:19
Rank: #5717 (+22)
23M → 24M
7:19 | 7:19/mi
40K· 24.85 mi
2:56:42
Rank: #5691 (+26)
24M → 40K
6:23 | 7:28/mi
25.2M
2:59:31
Rank: #5696 (-5)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:06:35
Rank: #5607 (+89)
25.2M → Finish
7:04 | 6:56/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:23
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:35:12
Pace7:16 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0221:236:5321:23
6:53
-
10K
6.21 mi10:44:3442:556:5421:32
6:56
+0:03
15K
9.32 mi11:06:161:04:376:5621:42
6:59
+0:03
20K
12.43 mi11:28:191:26:406:5822:03
7:06
+0:07
Half
13.11 mi11:33:021:31:236:584:43
6:55
-0:11
25K
15.53 mi11:49:581:48:196:5816:56
6:59
+0:04
30K
18.64 mi12:12:212:10:427:0122:23
7:12
+0:13
20M
20.00 mi12:22:222:20:437:0210:01
7:22
+0:10
21M
21.00 mi12:30:062:28:277:047:44
7:44
+0:22
35K
21.75 mi12:35:222:33:437:045:16
7:02
-0:42
23M
23.00 mi12:44:392:43:007:059:17
7:25
+0:23
24M
24.00 mi12:51:582:50:197:067:19
7:19
-0:06
40K
24.85 mi12:58:212:56:427:076:23
7:28
+0:09
25.2M
25.20 mi13:01:102:59:317:072:49
8:10
+0:42
Finish
26.22 mi13:08:143:06:357:077:04
6:56
-1:14

Checkpoints & Pacing

📈Pace 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

6:53 /mi

Average Pace

7:07 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:02

94% of race

Time at Steady Pace

7:44

4% of race

Time at Slower Pace

2:49

2% of race

Average Pace: 7:07 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:0221:236:5321:23
6:53
#5429
10K
6.21 mi10:44:3442:556:5421:32
6:56
#5866
15K
9.32 mi11:06:161:04:376:5621:42
6:59
#6081
20K
12.43 mi11:28:191:26:406:5822:03
7:06
#6183
Half
13.11 mi11:33:021:31:236:584:43
6:55
#6180
25K
15.53 mi11:49:581:48:196:5816:56
6:59
#6046
30K
18.64 mi12:12:212:10:427:0122:23
7:12
#5881
20M
20.00 mi12:22:222:20:437:0210:01
7:22
#5862
21M
21.00 mi12:30:062:28:277:047:44
7:44
#5812
35K
21.75 mi12:35:222:33:437:045:16
7:02
#5787
23M
23.00 mi12:44:392:43:007:059:17
7:25
#5739
24M
24.00 mi12:51:582:50:197:067:19
7:19
#5717
40K
24.85 mi12:58:212:56:427:076:23
7:28
#5691
25.2M
25.20 mi13:01:102:59:317:072:49
8:10
#5696
Finish
26.22 mi13:08:143:06:357:077:04
6:56
#5607
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5429501450146454(Top 24%)5818(Top 38%)5818(Top 110%)
10K6.21 mi3.10 mi5866-4375376-3625376-3626343(Top 24%)5733(Top 38%)5733(Top 108%)
15K9.32 mi3.11 mi6081-2155542-1665542-1666454(Top 24%)5818(Top 38%)5818(Top 110%)
20K12.43 mi3.11 mi6183-1025613-715613-716532(Top 25%)5859(Top 39%)5859(Top 111%)
Half13.11 mi0.68 mi6180+35619-65619-66050(Top 23%)5520(Top 36%)5520(Top 104%)
25K15.53 mi2.42 mi6046+1345517+1025517+1025488(Top 21%)5053(Top 33%)5053(Top 96%)
30K18.64 mi3.11 mi5881+1655374+1435374+1435532(Top 21%)5019(Top 33%)5019(Top 95%)
20M20.00 mi1.36 mi5862+195350+245350+246016(Top 23%)5301(Top 35%)5301(Top 100%)
21M21.00 mi1.00 mi5812+505298+525298+525788(Top 22%)5040(Top 33%)5040(Top 95%)
35K21.75 mi0.75 mi5787+255277+215277+215552(Top 21%)4915(Top 32%)4915(Top 93%)
23M23.00 mi1.25 mi5739+485219+585219+585928(Top 22%)5135(Top 34%)5135(Top 97%)
24M24.00 mi1.00 mi5717+225193+265193+266452(Top 24%)5382(Top 35%)5382(Top 102%)
40K24.85 mi0.85 mi5691+265162+315162+316462(Top 24%)5308(Top 35%)5308(Top 100%)
25.2M25.20 mi0.35 mi5696-55159+35159+37411(Top 28%)5811(Top 38%)5811(Top 110%)
Finish26.22 mi1.02 mi5607+895078+815078+814824(Top 18%)4147(Top 27%)4147(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6454

Males

5818

M18-39

5818

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6343

Males

5733

M18-39

5733

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6454

Males

5818

M18-39

5818

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6532

Males

5859

M18-39

5859

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6050

Males

5520

M18-39

5520

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5488

Males

5053

M18-39

5053

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5532

Males

5019

M18-39

5019

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6016

Males

5301

M18-39

5301

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5788

Males

5040

M18-39

5040

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5552

Males

4915

M18-39

4915

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5928

Males

5135

M18-39

5135

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6452

Males

5382

M18-39

5382

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6462

Males

5308

M18-39

5308

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7411

Males

5811

M18-39

5811

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4824

Males

4147

M18-39

4147

Passing Analysis

Category:
Athletes Passed
1086
Passed By
1264
Net Change
-178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5429
5K → 10K62499-437#5429#5866
10K → 15K49264-215#5866#6081
15K → 20K64166-102#6081#6183
20K → Half2421+3#6183#6180
Half → 25K15622+134#6180#6046
25K → 30K21045+165#6046#5881
30K → 20M7253+19#5881#5862
20M → 21M7626+50#5862#5812
21M → 35K4217+25#5812#5787
35K → 23M8739+48#5787#5739
23M → 24M6240+22#5739#5717
24M → 40K5933+26#5717#5691
40K → 25.2M1924-5#5691#5696
25.2M → Finish10415+89#5696#5607
TOTALS10861264-178
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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